2025/12/04 更新

写真a

イワタ タケヒロ
岩田 健宏
IWATA Takehiro
所属
学術研究院医療開発領域 助教
職名
助教

学位

  • 学士 ( 岡山大学 )

 

論文

  • Rash and Endocrine Disorders Predict Improved Survival in Metastatic Renal Cell Carcinoma Treated With Immunotherapy. 査読 国際誌

    Koichi Sugimoto, Takafumi Minami, Shingo Toyoda, Lan Inoki, Takuhisa Nukaya, Kiyoshi Takahara, Takahiro Adachi, Takeshi Hashimoto, Ryoichi Maenosono, Takuya Tsujino, Wataru Fukuokaya, Takafumi Yanagisawa, Takehiro Iwata, Kensuke Bekku, Motoo Araki, Takahiro Kimura, Haruhito Azuma, Yoshio Ohno, Ryoichi Shiroki, Kazutoshi Fujita

    Anticancer research   45 ( 8 )   3355 - 3364   2025年8月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    BACKGROUND/AIM: Immune-related adverse events (irAEs) are associated with improved clinical outcomes in patients with metastatic renal cell carcinoma (mRCC) treated with immuno-oncology therapy. However, various irAEs occur during such therapy. In this study, we analyzed the association between irAEs and prognosis of patients with mRCC treated with nivolumab and ipilimumab. PATIENTS AND METHODS: We retrospectively collected data from 193 patients with mRCC who were treated with nivolumab and ipilimumab as first-line treatment between September 2018 and February 2023 at multiple institutions. We performed Cox proportional hazards analysis for progression-free (PFS) and overall (OS) survival to identify specific irAEs associated with prognosis. RESULTS: Among the 153 eligible patients (median age=68 years; range=27-86 years, the median PFS was 7.8 months (95% confidence interval=6.0-12.5 months), and the median OS was 34.0 months (95% confidence interval=23.9 months - not reached). The most common irAEs were endocrine disorder (28.8%), rash (18.3%), pulmonary disorder (10.5%), and liver dysfunction (9.8%). In the multivariate analysis, endocrine disorder-related irAEs were identified as prognostic factors for significantly better PFS and OS. Additionally, rash-related irAEs were significant prognostic factors, specifically for better OS (p<0.05). CONCLUSION: Both rash and endocrine disorder-related irAEs were predictors of survival outcomes in patients with mRCC treated with nivolumab and ipilimumab. Optimal management of these irAEs is essential for improving prognosis.

    DOI: 10.21873/anticanres.17696

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  • Eosinophils as a predictive marker of treatment-related adverse events in mRCC patients treated with first-line immune-checkpoint inhibitor combination therapy. 査読 国際誌

    Tatsushi Kawada, Satoshi Katayama, Takafumi Yanagisawa, Keiichiro Mori, Wataru Fukuokaya, Kazumasa Komura, Takuya Tsujino, Ryoichi Maenosono, Kiyoshi Takahara, Takuhisa Nukaya, Lan Inoki, Shingo Toyoda, Takeshi Hashimoto, Yosuke Hirasawa, Kohei Edamura, Tomoko Kobayashi, Kensuke Bekku, Shingo Nishimura, Takehiro Iwata, Takuya Sadahira, Yusuke Tominaga, Tomoaki Yamanoi, Kasumi Yoshinaga, Kazuma Tsuboi, Yasuyuki Kobayashi, Atsushi Takamoto, Kyohei Kurose, Takahiro Kimura, Haruhito Azuma, Ryoichi Shiroki, Kazutoshi Fujita, Yoshio Ohno, Motoo Araki

    Scientific reports   15 ( 1 )   27163 - 27163   2025年7月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    Immune checkpoint inhibitors (ICIs) are a key component of first-line treatment for metastatic renal cell carcinoma (mRCC). However, predicting treatment-related adverse events (TRAEs) remains challenging. This study investigated the utility of eosinophil-related biomarkers as predictors of Common Terminology Criteria for Adverse Events grade ≥ 3 TRAEs in mRCC patients undergoing ICI combination therapy. In this retrospective analysis across 21 hospitals in Japan, we examined 180 patients treated with ICI/ICI therapy and 216 patients treated with ICI/tyrosine kinase inhibitor (TKI) therapy. Grade ≥ 3 TRAEs occurred in 39.4% and 31.9% of patients in the ICI/ICI and ICI/TKI groups, respectively. An elevated eosinophil proportion of ≥ 2.0% (odds ratio [OR]: 2.36; 95% CI [confidence interval] 1.23-4.54, p = 0.01) and a low neutrophil/eosinophil ratio (NER) of ≤ 40.0 (OR: 2.78, 95% CI 1.39-5.53, p = 0.004) were significant predictors of severe TRAEs in the ICI/ICI group. However, no significant associations were found in the ICI/TKI group. These findings may help identify patients who suffer from grade ≥ 3 TRAEs and help determine individualized treatment strategies in patients with mRCC.

    DOI: 10.1038/s41598-025-08767-9

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  • Impact of Early Detection and Varying Duration of Chemoprophylaxis on Venous Thromboembolism After Robot-Assisted Radical Cystectomy. 査読 国際誌

    Yuki Maruyama, Takuya Sadahira, Takanori Sekito, Yuta Iwasaki, Yosuke Mitsui, Tatsushi Kawada, Yusuke Tominaga, Takehiro Iwata, Satoshi Katayama, Shingo Nishimura, Kensuke Bekku, Kohei Edamura, Tomoko Kobayashi, Yasuyuki Kobayashi, Masami Watanabe, Toyohiko Watanabe, Motoo Araki

    International journal of urology : official journal of the Japanese Urological Association   32 ( 7 )   839 - 847   2025年7月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    OBJECTIVE: Venous thromboembolism (VTE) is one of the serious complications after robot-assisted radical cystectomy (RARC). This study aims to investigate the optimal duration of VTE prophylaxis and the predictive value of D-dimer measurement on the early detection of VTE. METHODS: Retrospectively, we evaluated 86 RARC patients from July 2020 to September 2023. Thromboprophylaxis was modified two times (July 2020-; no-enoxaparin administration, June 2021-; enoxaparin for one week postoperatively, December 2022-; for two weeks), and patients were divided into three groups according to the duration. For early detection of VTE, D-dimer was measured postoperatively over time. In cases of D-dimer exceeding 10 μg/mL, contrast-enhanced CT was performed. The incidence of VTE was analyzed, and multivariate analysis was performed to identify the predictive factors. RESULTS: Of the 40 patients who experienced postoperative D-dimer levels > 10 μg/mL, 37 underwent CT or ultrasound. VTE was observed in 10/26 cases (38%) in the no-enoxaparin group, 8/36 cases (22%) in the one-week group, and 1/24 cases (4%) in the two-week group, with a significant difference in incidence between the no-enoxaparin and 2-week groups (p = 0.005). Symptomatic VTE was observed in only one case in the no-enoxaparin group. Multivariate analyses of VTE predictive factors showed significant differences in D-dimer levels ≥ 12 on postoperative day 1 (OR = 14.2, 95% CI 2.47-81.1, p = 0.003) and enoxaparin administration for two weeks (OR = 0.10, 95% CI 0.01-0.96, p = 0.046). CONCLUSION: Chemoprophylaxis for 2 weeks significantly reduces the risk of VTE after RARC. In addition, routine measurement of D-dimer enables early detection of asymptomatic VTE, helping to prevent the development of symptomatic VTE.

    DOI: 10.1111/iju.70066

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  • Photodynamic Diagnosis-Guided Ureteroscopic Laser Ablation of Upper Tract Urothelial Carcinoma: Some Concerns and Future Direction. 査読 国際誌

    Satoshi Katayama, Takehiro Iwata, Shingo Nishimura, Kensuke Bekku, Motoo Araki

    Annals of surgical oncology   32 ( 6 )   4564 - 4565   2025年6月

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  • Correlation Between Body Mass Index and Clinical Outcomes in Advanced Renal Cell Carcinoma Patients. 査読 国際誌

    Kensuke Bekku, Shota Inoue, Kasumi Yoshinaga, Yosuke Mitsui, Tomoaki Yamanoi, Tatsushi Kawada, Yusuke Tominaga, Takuya Sadahira, Satoshi Katayama, Takehiro Iwata, Shingo Nishimura, Kohei Edamura, Tomoko Kobayashi, Motoo Araki

    Anticancer research   45 ( 6 )   2643 - 2651   2025年6月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    BACKGROUND/AIM: This study investigated the correlation between body mass index (BMI, kg/m2) and clinical outcomes in patients with advanced renal cell carcinoma (RCC) treated with ipilimumab and nivolumab. PATIENTS AND METHODS: A total of 113 patients with advanced RCC, treated with first-line ipilimumab and nivolumab were analyzed. Patients were divided into two groups based on their BMI at treatment initiation: the high BMI (BMI ≥25) and the low BMI group (BMI <25). The objective response rate (ORR), overall survival (OS), progression-free survival (PFS), and duration of response (DOR) were analyzed to compare the two groups. RESULTS: Patient characteristics for the high BMI (n=30) and the low BMI (n=83) were as follows: median age at treatment initiation (70 years for both groups), percentage of male patients (77% vs. 82%), International Metastatic RCC Database Consortium (IMDC) poor-risk category (23% vs. 33%), the presence of liver metastasis (7% vs. 8%). The ORR was 53% (16/30) in the high BMI and 37% (29/77) in the low BMI (p=0.01). The median OS was not estimated in the high BMI and 33 months in the low BMI (p=0.049). Multivariable analysis identified IMDC poor-risk status with a hazard ratio (HR) of 2.31 and the presence of liver metastasis with an HR of 4.83 as independent factors affecting OS. CONCLUSION: A higher ORR for the combination of ipilimumab and nivolumab was observed in patients with high BMI compared to those with low BMI. IMDC poor risk and the presence of liver metastasis significantly influenced the prognosis of patients with advanced RCC treated with the combination.

    DOI: 10.21873/anticanres.17635

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  • Distribution of Fimbrial Genes and Their Association with Virulence and Levofloxacin Resistance/Extended-Spectrum Beta-Lactamase Production in Uropathogenic Escherichia coli. 査読 国際誌

    Masao Mitsui, Takanori Sekito, Mai Maruhashi, Yuki Maruyama, Takehiro Iwata, Yusuke Tominaga, Satoshi Katayama, Shingo Nishimura, Kensuke Bekku, Motoo Araki, Hidetada Hirakawa, Takuya Sadahira

    Antibiotics (Basel, Switzerland)   14 ( 5 )   2025年5月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    Background: Urinary tract infection (UTI) is predominantly caused by uropathogenic Escherichia coli (UPEC). Previous studies have reported that the fimbriae of UPEC are involved in virulence and antimicrobial resistance. We aimed to analyze the fimbrial gene profiles of UPEC and investigate the specificity of these expressions in symptomatic UTI, urinary device use, and levofloxacin (LVFX) resistance/extended-spectrum beta-lactamase (ESBL) production. Methods: A total of 120 UPEC strains were isolated by urine culture between 2019 and 2023 at our institution. They were subjected to an antimicrobial susceptibility test and polymerase chain reaction (PCR) to identify 14 fimbrial genes and their association with clinical outcomes or antimicrobial resistance. Results: The prevalence of the papG2 gene was significantly higher in the symptomatic UTI group by multivariate analyses (OR 5.850, 95% CI 1.390-24.70, p = 0.016). The prevalence of the c2395 gene tended to be lower in the symptomatic UTI group with urinary devices (all p < 0.05). In LVFX-resistant UPEC strains from both the asymptomatic bacteriuria (ABU) and the symptomatic UTI group, the expression of the papEF, papG3, c2395, and yadN genes tended to be lower (all p < 0.05). Conclusion: The fimbrial genes of UPEC are associated with virulence and LVFX resistance, suggesting that even UPEC with fewer motility factors may be more likely to ascend the urinary tract in the presence of the urinary devices. These findings may enhance not only the understanding of the virulence of UPEC but also the management of UTI.

    DOI: 10.3390/antibiotics14050468

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  • Impact of concomitant medications on the oncologic efficacy of systemic therapy in patients with advanced or metastatic urothelial carcinoma: a systematic review and meta-analysis. 査読 国際誌

    Ichiro Tsuboi, Akihiro Matsukawa, Mehdi Kardoust Parizi, Marcin Miszczyk, Tamás Fazekas, Robert J Schulz, Ekaterina Laukhtina, Tatsushi Kawada, Satoshi Katayama, Takehiro Iwata, Kensuke Bekku, Pawel Rajwa, Koichiro Wada, Katharina Oberneder, Piotr Chlosta, Pierre I Karakiewicz, Motoo Araki, Shahrokh F Shariat

    BMC urology   25 ( 1 )   107 - 107   2025年4月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    BACKGROUND: Immune checkpoint inhibitors (ICI) and chemotherapy, including antibody-drug conjugates, are widely used for the treatment of patients with advanced unresectable or metastatic urothelial carcinoma (UC). The majority of elderly patients receive concomitant medications to address various comorbidities. We aimed to evaluate the impact of concomitant medications on oncological outcomes in patients with advanced unresectable or metastatic UC treated with systemic therapy. MATERIAL & METHODS: In August 2024, three datasets were queried for studies evaluating concomitant medications in patients with advanced unresectable or metastatic UC. The review protocol was registered in PROSPERO (CRD42024547335). The primary outcome was overall survival (OS). A fixed- or random-effects model was used for meta-analysis depending on the heterogeneity. RESULTS: We identified 16 eligible studies (3 prospective and 13 retrospective) comprising 4,816 patients. Most reported concomitant medications included proton pump inhibitors (PPIs), antibiotics, steroids, and opioids. The use of concomitant PPIs, antibiotics, steroids or opioids during ICI therapy was associated with worsened OS (PPIs: HR: 1.43, 95% CI: 1.31-1.57, p < 0.001; antibiotics: HR: 1.2, 95% CI: 1.04-1.38, p = 0.01; steroids: HR: 1.45, 95% CI: 1.25-1.67, p < 0.001; and opioids: HR: 1.74, 95% CI: 1.46-2.07, p < 0.001). Concomitant use of antibiotics during chemotherapy did not impact OS (HR: 1.01, 95% CI: 0.67-1.51). CONCLUSIONS: When treating advanced unresectable or metastatic UC with ICI therapy, we need to pay attention to concomitant medications, such as PPIs and antibiotics to avoid reducing the efficacy of ICI therapy. The mechanism of action of these drugs on ICI efficacy requires further examination.

    DOI: 10.1186/s12894-025-01754-2

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  • Nonintravesical Interventions for Preventing Intravesical Recurrence in Patients With Nonmuscle-Invasive Bladder Cancer: A Systematic Review and Meta-Analysis. 査読 国際誌

    Ichiro Tsuboi, Akihiro Matsukawa, Mehdi Kardoust Parizi, Robert J Schulz, Stefano Mancon, Tamás Fazekas, Marcin Miszczyk, Anna Cadenar, Ekaterina Laukhtina, Pawel Rajwa, Tatsushi Kawada, Satoshi Katayama, Takehiro Iwata, Kensuke Bekku, Takafumi Yanagisawa, Jun Miki, Takahiro Kimura, Koichiro Wada, Pierre I Karakiewicz, Piotr Chlosta, Jeremy Teoh, Motoo Araki, Shahrokh F Shariat

    Clinical genitourinary cancer   23 ( 2 )   102306 - 102306   2025年4月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    Despite currently used intravesical therapies in non-muscle-invasive bladder cancer (NMIBC), the rate of intravesical recurrence remains very high. We aimed to evaluate the effectiveness of adding nonintravesical interventions to standard intravesical therapies to prevent intravesical recurrence. In April 2024, 3 databases were queried for prospective studies evaluating nonintravesical interventions in addition to standard intravesical therapies for NMIBC (CRD42024490988). The primary outcome was intravesical recurrence-free survival (iRFS). Standard pairwise meta-analyses were performed using hazard ratios (HR) and 95% confidence intervals (95% CI) with a random-effects model. We identified 18 eligible studies (14 RCTs and 4 prospective trials) comprising 4,593 NMIBC patients, which investigated pharmacological interventions (eg, selenium, vitamins, Lactobacillus casei, celecoxib, metformin, mistletoe lectin) and lifestyle modifications (diet). The addition of Lactobacillus casei significantly improved iRFS (HR: 0.50; 95% CI: 0.34-0.73; P < .001). A high western diet pattern significantly worsened iRFS (HR:1.48, 95%CI:1.06-2.06, P = .03). The other nonintravesical interventions were not associated with iRFS. Our comprehensive review of the published literature highlights the need for further research into the efficacy of nonvesical interventions for NMIBC. While Lactobacillus was shown to improve iRFS in 2 RCTs, additional high-quality randomized studies are required to evaluate the effectiveness of other interventions.

    DOI: 10.1016/j.clgc.2025.102306

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  • [The Role of Kidney-Sparing Surgery for Patients with Upper Tract Urothelial Carcinoma].

    Satoshi Katayama, Kasumi Yoshinaga, Tatsushi Kawada, Takuya Sadahira, Yusuke Tominaga, Takehiro Iwata, Shingo Nishimura, Kensuke Bekku, Tomoko Kobayashi, Kohei Edamura, Motoo Araki

    Gan to kagaku ryoho. Cancer & chemotherapy   52 ( 3 )   210 - 216   2025年3月

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    記述言語:日本語   掲載種別:研究論文(学術雑誌)  

    With the advancement of modern ureteroscopes and laser technology, kidney-sparing surgery(KSS)has an expanding role for patients with upper tract urothelial carcinoma(UTUC), although radical nephroureterectomy remains the gold standard. Patients with UTUC are generally elderly and often have major medical comorbidities. As such, KSS is recommended for patients with imperative indications, such as bilateral disease, renal insufficiency, or a solitary kidney, while maintaining renal function, resulting in the avoidance of potential long-term cardiovascular morbidity and hemodialysis. In addition, KSS is also advocated for low-risk patients(elective indication)based on the risk stratifications recommended by each guideline. The big issue of risk stratifications is their narrow indications at the cost of providing accuracy, but the current elective indications have been updated and expanded year by year. KSS includes endoscopic management through antegrade or retrograde access to the upper tract and segmental ureterectomy. Thulium: YAG laser in combination with Ho: YAG laser is recently used for KSS due to the advantages of its shallow penetration depth in tissue, with a reduced risk of upper urinary tract perforation. The concern regarding KSS is a high recurrence rate. Adjuvant intracavitary instillation to the upper tract has the potential to reduce the risk of recurrence. The phase Ⅲ trial assessing a mitomycin-containing reverse thermal gel (JelmytoTM)revealed the promising result despite their use not being approved in Japan. Therefore, KSS is assumed to have an increasing demand for patients with UTUC in our aged society and is expected to be widely utilized nationwide.

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  • Postoperative infections after robotic-assisted radical prostatectomy in a single large institution: Effect of type and duration of prophylactic antibiotic administration. 査読 国際誌

    Masao Mitsui, Takuya Sadahira, Naoya Nagasaki, Yuki Maruyama, Takanori Sekito, Takehiro Iwata, Satoshi Katayama, Kensuke Bekku, Motoo Araki

    International journal of urology : official journal of the Japanese Urological Association   32 ( 3 )   258 - 263   2025年3月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    OBJECTIVE: We evaluated the incidence of and risk factors for postoperative infections after robotic-assisted radical prostatectomy (RARP) according to the type and duration of prophylactic antibiotic administration. METHODS: A total of 1038 patients underwent RARP at our institution from 2010 to 2021; 1026 patients (201 in the cefazolin [CEZ] group and 825 in the ampicillin/sulbactam [ABPC/SBT] group) were analyzed, and 12 who used other antibiotics were excluded. The primary endpoint was the incidence of urinary tract infection (UTI), surgical site infection (SSI), and remote infection (RI). T-tests, propensity score matching (PSM) and inverse probability of treatment weighting (IPTW) were performed. Multivariate logistic regression analysis was performed to evaluate the effect of type and duration of prophylactic antibiotic administration. RESULTS: The incidence of UTI was 2.5% (5/201) in the CEZ group and 3.2% (26/825) in the ABPC/SBT group, with no significant difference between groups (p = 0.622). The rates of SSI and RI were comparable between groups (p = 0.680 and 0.906, respectively). Although the duration of antimicrobial therapy was longer in the ABPC/SBT group (p < 0.001), there was no significant difference in the incidence of UTI/SSI/RI after PSM and IPTW (all p > 0.05). Multivariate logistic regression analysis showed that neither the type of antibiotic nor the duration of administration affected the incidence of UTI/SSI/RI. CONCLUSION: The risk of postoperative UTI/SSI/RI after RARP did not change with the type and duration of antimicrobial therapy.

    DOI: 10.1111/iju.15635

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  • Influence of tumor-associated factors on the treatment selection between partial nephrectomy and ablation therapy for small renal tumors (Review). 査読 国際誌

    Kensuke Bekku, Shota Inoue, Kasumi Yoshinaga, Tomoaki Yamanoi, Yosuke Mitsui, Tatsushi Kawada, Yusuke Tominaga, Takuya Sadahira, Takehiro Iwata, Satoshi Katayama, Shingo Nishimura, Kohei Edamura, Tomoko Kobayashi, Motoo Araki

    Medicine international   5 ( 4 )   48 - 48   2025年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    For small renal tumors, nephron-preserving treatment, including partial nephrectomy or ablation therapy, is recommended. According to major guidelines, ablation therapies are advised for patients who are deemed not suitable to undergo surgery due to an advanced age or the presence of comorbidities. However, compared with surgery, ablation therapy can result in superior safety and functional outcomes. The present review discusses the factors affecting decision-making as regards treatment options for small renal tumors. When determining an appropriate treatment option, tumor locations, as well as the condition and preferences of the patient, are considered. Scoring systems, such as the RENAL Nephrometry Score can assist in guiding treatment decisions. However, surgery may be the preferred approach for tumors near major vessels and collecting systems. For endophytic tumors, partial nephrectomy can be challenging due to the difficulty in visualizing intra-parenchymal tumors during the procedure, whereas ablation therapies may be inferior to partial nephrectomy. Although treatment selection for small renal tumors can be affected by tumor location, partial nephrectomy remains the gold standard for numerous cases.

    DOI: 10.3892/mi.2025.247

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  • Significance of targeted antimicrobial prophylaxis using rectal-culture selective screening media prior to transrectal prostate biopsy: A multicenter, randomized controlled trial. 査読 国際誌

    Takuya Sadahira, Takanori Sekito, Yuki Maruyama, Takaharu Ichikawa, Yuki Kurihara, Hiromasa Shiraishi, Takafumi Sakuma, Moto Tokunaga, Yosuke Mitsui, Norihiro Kusumi, Yusuke Tominaga, Satoshi Katayama, Takehiro Iwata, Shingo Nishimura, Kohei Edamura, Tomoko Kobayashi, Masami Watanabe, Yoshiki Hiyama, Hiroki Yamada, Hiroki Kurata, Tsubasa Kondo, Masao Mitsui, Tadasu Takenaka, Hiroshi Kiyota, Motoo Araki, Jun Miyazaki, Satoshi Takahashi, Shingo Yamamoto, Koichiro Wada

    Urology   2024年12月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    OBJECTIVE: To examine whether antimicrobial prophylaxis based on screening rectal cultures using selective media prevented acute bacterial prostatitis following transrectal prostate biopsy (TRPB). METHODS: In this multicenter, randomized controlled trial, we enrolled 403 patients undergoing TRPB with low risks of infectious complications. Patients were randomized into a cultured group (CG) or no cultured group (NCG). In the CG, patients with positive culture results for fluoroquinolone (FQ)-resistant or extended-spectrum β-lactamase (ESBL)-producing Escherichia coli (E. coli) used piperacillin/tazobactam as prophylaxis, and those with negative culture results and in the NCG used levofloxacin. The primary endpoint was the incidence of acute prostatitis after TRPB. The secondary endpoint was the accuracy of the selective media. RESULTS: Of 373 patients (CG, 187; NCG, 186), 67 were positive, and 120 were negative for rectal culture in the CG. The overall incidence of prostatitis after TRPB was 1.1% (n=4). The incidences in the CG and the NCG were 1.6% (n=3, all negative-culture cases) and 0.5% (n=1), respectively, without significant difference (P=0.3). No prostatitis occurred in the positive-culture group. The sensitivity and specificity of the levofloxacin-insusceptible selective media were 98.1% and 94.7%, respectively. CONCLUSION: Screening with selective media before TRPB in patients with low infectious risks may provide additive value to preventing post-biopsy prostatitis. Piperacillin/tazobactam can be considered when FQ-resistant or ESBL-producing E. coli is detected.

    DOI: 10.1016/j.urology.2024.12.018

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  • Propensity score-matched analysis comparing robot-assisted partial nephrectomy and image-guided percutaneous cryoablation for cT1 renal cell carcinoma. 査読 国際誌

    Tomoaki Yamanoi, Kensuke Bekku, Kasumi Yoshinaga, Yuki Maruyama, Kentaro Nagao, Tatsushi Kawada, Yusuke Tominaga, Noriyuki Umakoshi, Takuya Sadahira, Satoshi Katayama, Takehiro Iwata, Mayu Uka, Shingo Nishimura, Kohei Edamura, Tomoko Kobayashi, Yasuyuki Kobayashi, Takao Hiraki, Motoo Araki

    Urologic oncology   42 ( 12 )   453.e15-453.e22   2024年12月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    OBJECTIVES: This study aimed to compare the clinical outcomes of robot-assisted partial nephrectomy (RAPN) and image-guided percutaneous cryoablation (IG-PCA) for clinical T1 renal cell carcinoma. MATERIALS AND METHODS: We conducted a retrospective analysis of 679 patients with clinical T1 renal cell carcinoma treated with RAPN or IG-PCA between 2012 and 2021. Propensity scores were calculated via logistic analysis to adjust for imbalances in baseline characteristics. We compared oncological and functional outcomes between the 2 treatment groups. RESULTS: Following the matching process, 108 patients were included in each group. No patient in the RAPN group developed local recurrence. In the IG-PCA group, three patients experienced local tumor progression. The patients underwent salvage thermal ablations by the secondary technique; 2 underwent IG-PCA and 1 underwent microwave ablation, resulting in a local control rate of 100%. The Kaplan-Meier analysis showed no statistically significant differences between the groups in terms of 5-year recurrence-free survival, metastasis-free survival, and overall survival (log-rank test; P = 0.11, P = 0.64, and P = 0.17, respectively). No significant differences were observed in the 2 treatments in major and overall complication rates (P = 0.75 and P = 0.82, respectively). Both groups showed similar rates of less than 10% estimated glomerular filtration rate decline at 12 months post-treatment and 5-year renal function preservation rates (P = 0.88 and P = 0.38, respectively). CONCLUSIONS: IG-PCA demonstrated oncological outcomes comparable to those of RAPN. RAPN addressed the disadvantages of conventional procedures and allowed for safety outcomes comparable to IG-PCA.

    DOI: 10.1016/j.urolonc.2024.09.012

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  • Partial versus Radical Nephrectomy for Small Renal Cancer: Comparative Propensity Score-Matching Analysis of Cardiovascular Event Risk. 査読

    Risa Kubota, Kensuke Bekku, Satoshi Katayama, Takehiro Iwata, Shingo Nishimura, Kohei Edamura, Tomoko Kobayashi, Yasuyuki Kobayashi, Motoo Araki

    Acta medica Okayama   78 ( 6 )   429 - 437   2024年12月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    Although partial nephrectomy (PN) is preferred over radical nephrectomy (RN) for preserving renal function in patients with cT1 renal cancer, its impact on cardiovascular events (CVe) remains controversial. This study aimed to compare PN and RN in regard to the occurrence of CVe, including cerebrovascular events and exacerbation of hypertension (HT). We retrospectively analyzed 418 consecutive patients who underwent PN or RN for cT1 renal cancer. Propensity score-matching analysis was used to adjust for imbalances between patients who underwent PN and RN, leaving 102 patients in each group. The 5-year probability of cumulative CVe incidence was 6% in the PN group and 12% in the RN group (p=0.03), with a median follow-up of 73.5 months. The statistical significance was retained after propensity score matching for patients without preoperative proteinuria (p=0.03). For all CVe including cerebrovascular events and exacerbation of HT analyzed, PN provided a lower probability of occurrence than RN in patients with small renal cancers.

    DOI: 10.18926/AMO/67868

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  • The Impact of Concomitant Medications on the Overall Survival of Patients Treated with Systemic Therapy for Advanced or Metastatic Renal Cell Carcinoma: A Systematic Review and Meta-analysis. 査読 国際誌

    Ichiro Tsuboi, Akihiro Matsukawa, Mehdi Kardoust Parizi, Marcin Miszczyk, Tamás Fazekas, Robert J Schulz, Stefano Mancon, Giulio Litterio, Ekaterina Laukhtina, Tatsushi Kawada, Satoshi Katayama, Takehiro Iwata, Kensuke Bekku, Pawel Rajwa, Koichiro Wada, Pierre I Karakiewicz, Motoo Araki, Shahrokh F Shariat

    Clinical genitourinary cancer   22 ( 6 )   102237 - 102237   2024年12月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    Although immune checkpoint inhibitors (ICI) and/or tyrosine kinase inhibitors (TKI) are the standard treatment of advanced unresectable or metastatic renal cell carcinoma (RCC), the impact of concomitant medications remains unclear. We aimed to evaluate the impact of concomitant medications on survival outcomes in patients treated with systemic therapy for advanced unresectable or metastatic RCC. In August 2024, PubMed, Scopus, and Web of Science were queried for studies evaluating concomitant medications in patients with advanced unresectable or metastatic RCC (PROSPERO: CRD42024573252). The primary outcome was overall survival (OS). A fixed- or random-effects model was used for meta-analysis according to heterogeneity. We identified 22 eligible studies (5 prospective and 17 retrospective) comprising 16,072 patients. Concomitant medications included proton pump inhibitors (PPI) (n = 3959), antibiotics (n = 571), statins (n = 5466), renin-angiotensin system inhibitors (RASi) (n = 6615), and beta-blockers (n = 1964). Both concomitant PPI and antibiotics were significantly associated with worse OS in patients treated with ICI (PPI: HR: 1.22, P = .01, and antibiotics: HR: 2.09, P < .001). Concomitant statins, RASi, or beta-blocker were significantly associated with improved OS in patients treated with TKI (statins: HR: 0.81, P = .03, RASi: HR: 0.63, P < .001, beta-blocker: HR: 0.69, P < .001, respectively). In patients treated with ICI, RASi was significantly associated with improved OS (HR: 0.64, P = .02). Concomitant use of antibiotics or PPI with ICI can reduce its oncologic efficacy. Conversely, concomitant statins, RASi, or beta-blockers can enhance the oncologic efficacy of TKI. When initiating systemic therapy for metastatic RCC, it may be important for clinicians to assess baseline co-medications and recognize their possible positive or negative effects.

    DOI: 10.1016/j.clgc.2024.102237

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  • Oncological Outcomes of Active Surveillance versus Surgery or Ablation for Patients with Small Renal Masses: A Systematic Review and Quantitative Analysis. 査読 国際誌

    Ichiro Tsuboi, Pawel Rajwa, Riccardo Campi, Marcin Miszczyk, Tamás Fazekas, Akihiro Matsukawa, Mehdi Kardoust Parizi, Robert J Schulz, Stefano Mancon, Anna Cadenar, Ekaterina Laukhtina, Tatsushi Kawada, Satoshi Katayama, Takehiro Iwata, Kensuke Bekku, Koichiro Wada, Pierre I Karakiewicz, Mesut Remzi, Motoo Araki, Shahrokh F Shariat

    European urology oncology   2024年10月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    BACKGROUND AND OBJECTIVE: While active surveillance (AS) is an alternative to surgical interventions in patients with small renal masses (SRMs), evidence regarding its oncological efficacy is still debated. We aimed to evaluate oncological outcomes for patients with SRMs who underwent AS in comparison to surgical interventions. METHODS: In April 2024, PubMed, Scopus, and Web of Science were queried for comparative studies evaluating AS in patients with SRMs (PROSPERO: CRD42024530299). The primary outcomes were overall (OS) and cancer-specific survival (CSS). A random-effects model was used for quantitative analysis. KEY FINDINGS AND LIMITATIONS: We identified eight eligible studies (three prospective, four retrospective, and one study based on Surveillance, Epidemiology and End Results [SEER] data) involving 4947 patients. Pooling of data with the SEER data set revealed significantly higher OS rates for patients receiving surgical interventions (hazard ratio [HR] 0.73; p = 0.007), especially partial nephrectomy (PN; HR 0.62; p < 0.001). However, in a sensitivity analysis excluding the SEER data set there was no significant difference in OS between AS and surgical interventions overall (HR 0.84; p = 0.3), but the PN subgroup had longer OS than the AS group (HR 0.6; p = 0.002). Only the study based on the SEER data set showed a significant difference in CSS. The main limitations include selection bias in retrospective studies, and classification of interventions in the SEER database study. CONCLUSIONS AND CLINICAL IMPLICATIONS: Patients treated with AS had similar OS to those who underwent surgery or ablation, although caution is needed in interpreting the data owing to the potential for selection bias and variability in AS protocols. Our review reinforces the need for personalized shared decision-making to identify patients with SRMs who are most likely to benefit from AS. PATIENT SUMMARY: For well-selected patients with a small kidney mass suspicious for cancer, active surveillance seems to be a safe alternative to surgery, with similar overall survival. However, the evidence is still limited and more studies are needed to help in identifying the best candidates for active surveillance.

    DOI: 10.1016/j.euo.2024.10.008

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  • What is the identity of Gerota fascia? Histological study with cadavers. 査読 国際誌

    Yasuyuki Kobayashi, Kohei Edamura, Takuya Sadahira, Yusuke Tominaga, Satoshi Katayama, Takehiro Iwata, Shingo Nishimura, Tomoko Kobayashi, Keita Sato, Takaaki Komiyama, Ryusuke Momota, Hideyo Ohuchi, Motoo Araki

    International journal of urology : official journal of the Japanese Urological Association   2024年10月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    OBJECTIVES: The advancement of laparoscopic surgery has allowed surgeons to see finer anatomical structures during surgery. As a result, several issues have arisen regarding Gerota fascia that cannot be explained by previous interpretations, such as its various forms observed during surgery. To address these issues, we histologically examined the structure of Gerota fascia. METHODS: Specimens for study were prepared from kidneys with Gerota fascia from four cadavers, and the structure was studied histologically. Its thickness and collagen fiber area ratios were measured using ImageJ and compared to those of the epimysium of the rectus abdominis muscle. RESULTS: Connective tissue that appeared to be Gerota fascia was observed in 26 specimens. Histologically, the basic structure of Gerota fascia was a sandwich-like structure with a thin layer of thick, long collagen fibers in the central layer, and small granular collagen fibers scattered at the edges. However, not all areas observed had a similar structure; eight specimens were composed only of small granular collagen fibers. The average thickness of the Gerota fascia was 466 μm, and the area ratio of collagen was 27.1%. In contrast, the epimysium was much thicker than Gerota fascia, and its collagen fibers were much thicker and denser. CONCLUSIONS: Gerota fascia, unlike the epimysium, was a very thin and fragile layer of collagen fibers, and its structure was diverse. This explains why Gerota fascia was observed in various states during surgery. It is important for surgeons to understand the properties of Gerota fascia and to treat it appropriately.

    DOI: 10.1111/iju.15596

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  • The efficacy of adjuvant mitotane therapy and radiotherapy following adrenalectomy in patients with adrenocortical carcinoma: A systematic review and meta-analysis. 査読 国際誌

    Ichiro Tsuboi, Mehdi Kardoust Parizi, Akihiro Matsukawa, Stefano Mancon, Marcin Miszczyk, Robert J Schulz, Tamás Fazekas, Anna Cadenar, Ekaterina Laukhtina, Tatsushi Kawada, Satoshi Katayama, Takehiro Iwata, Kensuke Bekku, Koichiro Wada, Mesut Remzi, Pierre I Karakiewicz, Motoo Araki, Shahrokh F Shariat

    Urologic oncology   2024年10月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    Adrenocortical carcinoma (ACC) is a rare and aggressive malignancy with a high recurrence rate after surgical therapy with curative intent. Adjuvant radiotherapy (RT) and mitotane therapy have been proposed as options following the adrenalectomy. However, the efficacy of adjuvant RT or mitotane therapy remains controversial. We aimed to evaluate the efficacy of adjuvant therapy in patients who underwent adrenalectomy for localised ACC. The PubMed, Scopus, and Web of Science databases were queried on March 2024 for studies evaluating adjuvant therapies in patients treated with surgery for localized ACC (PROSPERO: CRD42024512849). The endpoints of interest were overall survival (OS) and recurrence-free survival (RFS). Hazard ratios (HR) with 95% confidence intervals (95%CI) were pooled in a random-effects model meta-analysis. One randomized controlled trial (n = 91) and eleven retrospective studies (n = 4,515) were included. Adjuvant mitotane therapy was associated with improved RFS (HR: 0.63, 95%CI: 0.44-0.92, p = 0.016), while adjuvant RT did not reach conventional levels of statistical significance (HR:0.79, 95%CI:0.58-1.06, p = 0.11). Conversely, Adjuvant RT was associated with improved OS (HR:0.69, 95%CI:0.58-0.83, p<0.001), whereas adjuvant mitotane did not (HR: 0.76, 95%CI: 0.57-1.02, p = 0.07). In the subgroup analyses, adjuvant mitotane was associated with better OS (HR:0.46, 95%CI: 0.30-0.69, p < 0.001) and RFS (HR:0.56, 95%CI: 0.32-0.98, p = 0.04) in patients with negative surgical margin. Both adjuvant RT and mitotane were found to be associated with improved oncologic outcomes in patients treated with adrenalectomy for localised ACC. While adjuvant RT significantly improved OS in general population, mitotane appears as an especially promising treatment option in patients with negative surgical margin. These data can support the shared decision-making process, better understanding of the risks, benefits, and effectiveness of these therapies is still needed to guide tailored management of each individual patient.

    DOI: 10.1016/j.urolonc.2024.09.014

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  • Correction: Infection risk reduction with povidone-iodine rectal disinfection prior to transrectal prostate biopsy: an updated systematic review and meta-analysis. 査読 国際誌

    Ichiro Tsuboi, Akihiro Matsukawa, Mehdi Kardoust Parizi, Jakob Klemm, Stefano Mancon, Sever Chiujdea, Tamás Fazekas, Ekaterina Laukhtina, Tatsushi Kawada, Satoshi Katayama, Takehiro Iwata, Kensuke Bekku, Koichiro Wada, Motoo Araki, Shahrokh F Shariat

    World journal of urology   42 ( 1 )   522 - 522   2024年9月

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  • トランス男性のホルモン治療に対する期待度の調査

    森分 貴俊, 富永 悠介, 藤澤 諒多, 奥村 美紗, 堀井 聡, 松本 裕子, 小林 知子, 定平 卓也, 片山 聡, 岩田 健宏, 西村 慎吾, 別宮 謙介, 枝村 康平, 小林 泰之, 荒木 元朗

    日本性科学会雑誌   42 ( 2 )   63 - 63   2024年9月

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    記述言語:日本語   出版者・発行元:(一社)日本性科学会  

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  • Differential effect of surgical technique on intravesical recurrence after radical nephroureterectomy in patients with upper tract urothelial cancer: a systematic review and Meta-analysis. 査読 国際誌

    Ichiro Tsuboi, Akihiro Matsukawa, Mehdi Kardoust Parizi, Jakob Klemm, Robert J Schulz, Anna Cadenar, Stefano Mancon, Sever Chiujdea, Tamás Fazekas, Marcin Miszczyk, Ekaterina Laukhtina, Tatsushi Kawada, Satoshi Katayama, Takehiro Iwata, Kensuke Bekku, Koichiro Wada, Paolo Gontero, Morgan Rouprêt, Jeremy Teoh, Nirmish Singla, Motoo Araki, Shahrokh F Shariat

    World journal of urology   42 ( 1 )   488 - 488   2024年8月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    CONTEXT: Radical nephroureterectomy (RNU) with bladder cuff resection is the standard treatment in patients with high-risk upper tract urothelial cancer (UTUC). However, it is unclear which specific surgical technique may lead to improve oncological outcomes in term of intravesical recurrence (IVR) in patients with UTUC. OBJECTIVE: To evaluate the efficacy of surgical techniques and approaches of RNU in reducing IVR in UTUC patients. EVIDENCE ACQUISITION: Three databases were queried in January 2024 for studies analyzing UTUC patients who underwent RNU. The primary outcome of interest was the rate of IVR among various types of surgical techniques and approaches of RNU. EVIDENCE SYNTHESIS: Thirty-one studies, comprising 1 randomized controlled trial and 1 prospective study, were included for a systematic review and meta-analysis. The rate of IVR was significantly lower in RNU patients who had an early ligation (EL) of the ureter compared to those who did not (HR: 0.64, 95% CI: 0.44-0.94, p = 0.02). Laparoscopic RNU significantly increased the IVR compared to open RNU (HR: 1.28, 95% CI: 1.06-1.54, p < 0.001). Intravesical bladder cuff removal significantly reduced the IVR compared to both extravesical and transurethral bladder cuff removal (HR: 0.65, 95% CI: 0.51-0.83, p = 0.02 and HR: 1.64, 95% CI: 1.15-2.34, p = 0.006, respectively). CONCLUSIONS: EL of the affected upper tract system, ureteral management, open RNU, and intravesical bladder cuff removal seem to yield the lowest IVR rate in patients with UTUC. Well-designed prospective studies are needed to conclusively elucidate the optimal surgical technique in the setting of single post-operative intravesical chemotherapy.

    DOI: 10.1007/s00345-024-05185-w

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  • LOH症候群における精神症状がテストステロン補充療法に与える影響について

    富永 悠介, 小林 知子, 森分 貴俊, 松本 裕子, 定平 卓也, 片山 聡, 岩田 健宏, 西村 慎吾, 別宮 謙介, 枝村 康平, 小林 泰之, 佐古 智子, 杉本 盛人, 渡部 昌実, 荒木 元朗

    日本性機能学会雑誌   39 ( 2 )   167 - 167   2024年8月

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    記述言語:日本語   出版者・発行元:(一社)日本性機能学会  

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  • 男性低ゴナドトロピン性性腺機能低下症(MHH)に対するテストステロン補充療法(TRT)についての検討

    藤澤 諒多, 富永 悠介, 奥村 美紗, 堀井 聡, 森分 貴俊, 松本 裕子, 小林 知子, 定平 卓也, 片山 聡, 岩田 健宏, 西村 慎吾, 別宮 謙介, 枝村 康平, 杉本 盛人, 荒木 元朗

    日本性機能学会雑誌   39 ( 2 )   170 - 170   2024年8月

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    記述言語:日本語   出版者・発行元:(一社)日本性機能学会  

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  • 当院に受診したクラインフェルター症候群患者の性機能についての検討

    森分 貴俊, 富永 悠介, 藤澤 諒多, 奥村 美紗, 堀井 聡, 松本 裕子, 小林 知子, 定平 卓也, 片山 聡, 岩田 健宏, 西村 慎吾, 別宮 謙介, 枝村 康平, 杉本 盛人, 荒木 元朗

    日本性機能学会雑誌   39 ( 2 )   169 - 169   2024年8月

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    記述言語:日本語   出版者・発行元:(一社)日本性機能学会  

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  • 上部尿路上皮癌に対するThulium:YAGレーザーとHo:YAGレーザーを用いた内視鏡下レーザー焼灼術の適応と治療成績

    片山 聡, 長崎 直也, 津川 卓士, 奥村 美紗, 川合 裕也, 井上 翔太, 渡部 智文, 関戸 崇了, 堀井 聡, 吉永 香澄, 森分 貴俊, 山野井 友昭, 河田 達志, 富永 悠介, 定平 卓也, 岩田 健宏, 西村 慎吾, 別宮 謙介, 枝村 康平, 小林 知子, 小林 泰之, 石井 亜矢乃, 渡部 昌実, 渡邉 豊彦, 荒木 元朗

    西日本泌尿器科   86 ( 増刊号2 )   190 - 190   2024年6月

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    記述言語:日本語   出版者・発行元:(一社)西日本泌尿器科学会  

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  • 転移性腎癌に対してPembrolizumab投与中,サイトカイン放出症候群を認めた一例

    川合 裕也, 西村 慎吾, 長崎 直也, 奥村 美紗, 津川 卓士, 井上 翔太, 渡部 智文, 関戸 崇了, 堀井 聡, 森分 貴俊, 吉永 香澄, 山野井 友昭, 河田 達志, 富永 悠介, 定平 卓也, 岩田 健宏, 片山 聡, 別宮 謙介, 枝村 康平, 小林 知子, 小林 泰之, 石井 亜矢乃, 渡部 昌実, 渡邉 豊彦, 荒木 元朗

    西日本泌尿器科   86 ( 増刊号2 )   193 - 194   2024年6月

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    記述言語:日本語   出版者・発行元:(一社)西日本泌尿器科学会  

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  • 尿路結石治療の坂と雲~新たな時代の幕開け~ 結石手術における効率化・費用対効果向上のための新しいデバイスについて

    富永 悠介, 定平 卓也, 片山 聡, 岩田 健宏, 西村 慎吾, 別宮 謙介, 枝村 康平, 小林 知子, 小林 泰之, 荒木 元朗

    西日本泌尿器科   86 ( 増刊号2 )   126 - 127   2024年6月

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    記述言語:日本語   出版者・発行元:(一社)西日本泌尿器科学会  

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  • ロボット支援腹腔鏡下前立腺全摘術(RARP)における術後感染症に関する後方視的研究 CefazolinとSulbactam/Ampicillinの比較

    三井 將雄, 定平 卓也, 岩田 健宏, 荒木 元朗, 長崎 直也, 片山 聡, 西村 慎吾, 枝村 康平, 小林 知子, 小林 泰之

    日本感染症学会総会・学術講演会・日本化学療法学会学術集会合同学会プログラム・抄録集   98回・72回   np288 - np288   2024年5月

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    記述言語:日本語   出版者・発行元:日本感染症学会・日本化学療法学会  

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  • Infection risk reduction with povidone-iodine rectal disinfection prior to transrectal prostate biopsy: an updated systematic review and meta-analysis. 査読 国際誌

    Ichiro Tsuboi, Akihiro Matsukawa, Mehdi Kardoust Parizi, Jakob Klemm, Stefano Mancon, Sever Chiujdea, Tamás Fazekas, Ekaterina Laukhtina, Tatsushi Kawada, Satoshi Katayama, Takehiro Iwata, Kensuke Bekku, Koichiro Wada, Motoo Araki, Shahrokh F Shariat

    World journal of urology   42 ( 1 )   252 - 252   2024年4月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    BACKGROUND: To prevent infectious complications after transrectal ultrasound-guided prostate biopsy (TRUS-PB), some studies have investigated the efficacy of rectal disinfection using povidone-iodine (PI) and antibiotic prophylaxis (AP). OBJECTIVE: To summarize available data and compare the efficacy of rectal disinfection using PI with non-PI methods prior to TRUS-PB. EVIDENCE ACQUISITION: Three databases were queried through November 2023 for randomized controlled trials (RCTs) analyzing patients who underwent TRUS-PB. We compared the effectiveness of rectal disinfection between PI groups and non-PI groups with or without AP. The primary outcomes of interest were the rates of overall infectious complications, fever, and sepsis. Subgroups analyses were conducted to assess the differential outcomes in patients using fluoroquinolone groups compared to those using other antibiotics groups. EVIDENCE SYNTHESIS: We included ten RCTs in the meta-analyses. The overall rates of infectious complications were significantly lower when rectal disinfection with PI was performed (RR 0.56, 95% CI 0.42-0.74, p < 0.001). Compared to AP monotherapy, the combination of AP and PI was associated with significantly lower risk of infectious complications (RR 0.54, 95% CI 0.40-0.73, p < 0.001) and fever (RR 0.47, 95% CI 0.30-0.75, p = 0.001), but not with sepsis (RR 0.49, 95% CI 0.23-1.04, p = 0.06). The use of fluoroquinolone antibiotics was associated with a lower risk of infectious complications and fever compared to non-FQ antibiotics. CONCLUSION: Rectal disinfection with PI significantly reduces the rates of infectious complications and fever in patients undergoing TRUS-PB. However, this approach does not show a significant impact on reducing the rate of sepsis following the procedure.

    DOI: 10.1007/s00345-024-04941-2

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  • A Systematic Review and Meta-analysis of the Impact of Local Therapies on Local Event Suppression in Metastatic Hormone-sensitive Prostate Cancer. 査読 国際誌

    Ichiro Tsuboi, Akihiro Matsukawa, Mehdi Kardoust Parizi, Jakob Klemm, Stefano Mancon, Sever Chiujdea, Tamás Fazekas, Marcin Miszczyk, Ekaterina Laukhtina, Tatsushi Kawada, Satoshi Katayama, Takehiro Iwata, Kensuke Bekku, Pierre Karakiewicz, Koichiro Wada, Morgan Rouprêt, Motoo Araki, Shahrokh F Shariat

    European urology oncology   2024年4月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    CONTEXT: It remains unclear to what extent the therapy of the primary local tumor, such as radical prostatectomy (RP) and radiation therapy (RT), improves overall survival in patients with low-volume metastatic hormone-sensitive prostate cancer (mHSPC). However, data suggest a benefit of these therapies in preventing local events secondary to local tumor progression. OBJECTIVE: To evaluate the efficacy of adding local therapy (RP or RT) to systemic therapies, including androgen deprivation therapy, docetaxel, and/or androgen receptor axis-targeted agents, in preventing local events in mHSPC patients compared with systemic therapy alone (ie, without RT of the prostate or RP). EVIDENCE ACQUISITION: Three databases and meeting abstracts were queried in November 2023 for studies analyzing mHSPC patients treated with local therapy. The primary outcome of interest was the prevention of overall local events (urinary tract infection, urinary tract obstruction, and gross hematuria) due to local disease progression. Subgroup analyses were conducted to assess the differential outcomes according to the type of local therapy (RP or RT). EVIDENCE SYNTHESIS: Overall, six studies, comprising two randomized controlled trials, were included for a systematic review and meta-analysis. The overall incidence of local events was significantly lower in the local treatment plus systemic therapy group than in the systemic therapy only groups (relative risk [RR]: 0.50, 95% confidence interval [CI]: 0.28-0.88, p = 0.016). RP significantly reduced the incidence of overall local events (RR: 0.24, 95% CI: 0.11-0.52) and that of local events requiring surgical intervention (RR: 0.08, 95% CI: 0.03-0.25). Although there was no statistically significant difference between the RT plus systemic therapy and systemic therapy only groups in terms of overall local events, the incidence of local events requiring surgical intervention was significantly lower in the RT plus systemic therapy group (RR: 0.70, 95% CI: 0.49-0.99); local events requiring surgical intervention of the upper urinary tract was significantly lower in local treatment groups (RR: 0.60, 95% CI: 0.37-0.98, p = 0.04). However, a subgroup analysis revealed that neither RP nor RT significantly impacted the prevention of local events requiring surgical intervention of the upper urinary tract. CONCLUSIONS: In some patients with mHSPC, RP or RT of primary tumor seems to reduce the incidence of local progression and events requiring surgical intervention. Identifying which patients are most likely to benefit from local therapy, and at what time point (eg, after response of metastases), will be necessary to set up a study assessing the risk, benefits, and alternatives to therapy of the primary tumor in the mHSPC setting. PATIENT SUMMARY: Our study suggests that local therapy of the prostate, such as radical prostatectomy or radiotherapy, in patients with metastatic hormone-sensitive prostate cancer can prevent local events, such as urinary obstruction and gross hematuria.

    DOI: 10.1016/j.euo.2024.03.007

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  • Trans men can achieve adequate muscular development through low-dose testosterone therapy: A long-term study on body composition changes. 査読 国際誌

    Yusuke Tominaga, Tomoko Kobayashi, Yuko Matsumoto, Takatoshi Moriwake, Yoshitaka Oshima, Misa Okumura, Satoshi Horii, Takuya Sadahira, Satoshi Katayama, Takehiro Iwata, Shingo Nishimura, Kensuke Bekku, Kohei Edamura, Morito Sugimoto, Yasuyuki Kobayashi, Masami Watanabe, Yuzaburo Namba, Yosuke Matsumoto, Mikiya Nakatsuka, Motoo Araki

    Andrology   2024年4月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    BACKGROUND: Transgender individuals undergo the gender-affirming hormone therapy (GAHT) to achieve physical changes consistent with their gender identity. Few studies are available on the long-term safety and efficacy of GAHT. OBJECTIVES: To investigate the long-term physical effects and the safety of the testosterone therapy for trans men and to assess the impact of differential hormone dose. MATERIALS AND METHODS: Trans men who initiated GAHT between May 2000 and December 2021 were included in this retrospective analysis. Physical findings (body mass index, body fat percentage (BFP), lean body mass (LBM), and grip strength), blood testing results (hemoglobin, hematocrit, uric acid, creatinine, total cholesterol, triglycerides, and total testosterone), and menstrual cessation were recorded. We assessed the effects of testosterone on body composition changes and laboratory parameters, comparing a low-dose group (≤ 62.5 mg/wk) to a high-dose group (> 62.5 mg/wk). RESULTS: Of 291 participants, 188 patients (64.6%) were in the low-dose group and 103 (35.4%) in the high-dose group. Cumulative menstrual cessation rates up to 12 months were not significantly different between groups. Both groups showed a decrease in BFP and an increase in LBM during the first year of therapy, followed by a slight increase in both over the long term. The high-dose group exhibited greater LBM gains during the first year. Higher hormone doses and lower initial LBM values were associated with LBM increases at 3 and 6 months (3 mo, P = 0.006, P < 0.001; 6 mo, P = 0.015, P < 0.001). There were no long-term, dose-dependent side effects such as polycythemia or dyslipidemia. CONCLUSION: Long-term GAHT for trans men is safe and effective. Low-dose testosterone administration is sufficient to increase LBM in trans men. Higher testosterone doses can lead to an earlier increase in muscle mass.

    DOI: 10.1111/andr.13640

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  • Effect of antacids on the survival of patients with metastatic urothelial carcinoma treated with pembrolizumab 査読

    Takanori Sekito, Kensuke Bekku, Satoshi Katayama, Tomofumi Watanabe, Ichiro Tsuboi, Kasumi Yoshinaga, Yuki Maruyama, Tomoaki Yamanoi, Tatsushi Kawada, Yusuke Tominaga, Takuya Sadahira, Takehiro Iwata, Shingo Nishimura, Norihiro Kusumi, Kohei Edamura, Tomoko Kobayashi, Kyohei Kurose, Takaharu Ichikawa, Yoshiyuki Miyaji, Koichiro Wada, Yasuyuki Kobayashi, Motoo Araki

    Clinical Genitourinary Cancer   102097 - 102097   2024年4月

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    掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier BV  

    DOI: 10.1016/j.clgc.2024.102097

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  • 脳腫瘍に対する放射線化学療法前に顕微鏡下精巣内精子採取術により精子回収が可能であったKlinefelter症候群の1例

    富永 悠介, 杉山 星哲, 原 綾英, 小林 知子, 松本 裕子, 定平 卓也, 片山 聡, 岩田 健宏, 西村 慎吾, 枝村 康平, 小林 泰之, 羽原 俊宏, 荒木 元朗

    日本生殖医学会雑誌   69 ( 1-2 )   109 - 109   2024年4月

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    記述言語:日本語   出版者・発行元:(一社)日本生殖医学会  

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  • Current status and future perspectives on robot-assisted kidney autotransplantation: A literature review. 招待 査読 国際誌

    Takanori Sekito, Tomoaki Yamanoi, Takuya Sadahira, Kasumi Yoshinaga, Yuki Maruyama, Yusuke Tominaga, Satoshi Katayama, Takehiro Iwata, Shingo Nishimura, Kensuke Bekku, Kohei Edamura, Tomoko Kobayashi, Yasuyuki Kobayashi, Motoo Araki

    International journal of urology : official journal of the Japanese Urological Association   2024年2月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    This review presents the latest insights on robot-assisted kidney autotransplantation (RAKAT). RAKAT is a minimally invasive surgical procedure and represents a promising alternative to conventional laparoscopic nephrectomy followed by open kidney transplantation for the treatment of various complex urological and vascular conditions. RAKAT can be performed either extracorporeally or intracorporeally. Additionally, a single-port approach can be performed through one small incision without the need to reposition the patient. Of 86 patients undergoing RAKAT, 8 (9.3%) developed postoperative > Grade 2 Clavien-Dindo (CD) complications. Although the feasibility of RAKAT was established in 2014, the long-term efficacy and safety along with outcomes of this surgical approach are still being evaluated, and additional studies are needed. With improvements in the technology of RAKAT and as surgeons gain more experience, RAKAT should become increasingly used and further refined, thereby leading to improved surgical outcomes and improved patients' quality of life.

    DOI: 10.1111/iju.15426

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  • 活躍する女性腎移植医 女性腎移植医への期待

    荒木 元朗, 吉永 香澄, 窪田 理沙, 西村 慎吾, 関戸 崇了, 丸山 雄樹, 定平 卓也, 山野井 友昭, 富永 悠介, 片山 聡, 岩田 健宏, 別宮 謙介, 枝村 康平, 小林 知子, 小林 泰之

    日本臨床腎移植学会プログラム・抄録集   57回   117 - 117   2024年2月

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    記述言語:日本語   出版者・発行元:(一社)日本臨床腎移植学会  

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  • 当院における先行的生体腎移植の検討

    吉永 香澄, 関戸 崇了, 丸山 雄樹, 山野井 友昭, 西村 慎吾, 富永 悠介, 定平 卓也, 片山 聡, 岩田 健宏, 大西 康博, 竹内 英実, 田邊 克幸, 森永 裕士, 和田 淳, 枝村 康平, 小林 知子, 小林 泰之, 荒木 元朗

    日本臨床腎移植学会プログラム・抄録集   57回   210 - 210   2024年2月

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    記述言語:日本語   出版者・発行元:(一社)日本臨床腎移植学会  

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  • Discontinuation of Immune-oncology Combinations due to Immune-related Adverse Events in Patients With Advanced Renal Cancers. 査読 国際誌

    Kensuke Bekku, Manuela Schmidinger, Satoshi Katayama, Tatsushi Kawada, Takafumi Yanagisawa, Takehiro Iwata, Kohei Edamura, Tomoko Kobayashi, Yasuyuki Kobayashi, Motoo Araki, Shahrokh F Shariat

    Anticancer research   44 ( 1 )   379 - 386   2024年1月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    BACKGROUND/AIM: Patients with advanced renal cell carcinoma (aRCC) treated with immune-oncology (IO) drugs may need to discontinue the treatment when severe immune-related adverse events (irAE) occur; however, the impact of discontinuation on survival remains unknown. PATIENTS AND METHODS: This is a retrospective multicenter analysis using a database of 183 aRCC patients treated with first-line IO drugs combination. The patients were divided into two groups according to the necessity of discontinuation due to irAEs. The primary endpoint was overall survival (OS). Cox proportional hazard models determined the predictive factors on OS. RESULTS: Among a total of 135 patients who experienced irAE, 38 patients had to discontinue and 52 continued the treatment while treating irAE. When compared to patients who were able to continue treatment, discontinuation was associated with significantly higher rates of IO-IO doublet use, severe irAE (grade ≥3), steroid use, and the occurrence of immune-related pneumonitis (p=0.03, p<0.001, p<0.001, and p=0.02, respectively). The objective response rates were comparable between the two groups (discontinuation 55.6% vs. no discontinuation 56.0%, p=0.7). On univariate analysis, patients who discontinued had a significantly worse OS when compared to those who continued treatment (p=0.02). On the contrary, on multivariate analysis treatment discontinuation was not associated with poor OS (HR=1.1, p=0.9). CONCLUSION: Treatment discontinuation due to irAE was not associated with poor prognosis in aRCC patients treated with ICI-based combination therapy. Treatment discontinuation may be a reasonable treatment option for well-selected patients, specifically for those who experienced good treatment responses.

    DOI: 10.21873/anticanres.16822

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  • 生体腎移植レシピエントの周術期尿路感染症リスク因子の検討

    西村 慎吾, 長崎 直也, 奥村 美紗, 原 尚史, 川野 香, 横山 周平, 渡部 智文, 関戸 崇了, 堀井 聡, 吉永 香澄, 丸山 雄樹, 長尾 賢太郎, 山野井 友昭, 河田 達志, 富永 悠介, 定平 卓也, 岩田 健宏, 片山 聡, 枝村 康平, 小林 知子, 小林 泰之, 石井 亜矢乃, 渡部 昌実, 渡邉 豊彦, 荒木 元朗

    西日本泌尿器科   86 ( 増刊号1 )   56 - 56   2024年1月

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    記述言語:日本語   出版者・発行元:(一社)西日本泌尿器科学会  

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  • グラフト感染が契機と考えられる腎動脈破綻を認めた自家腎移植の一例

    西村 慎吾, 長崎 直也, 奥村 美紗, 尾地 晃典, 原 尚史, 川野 香, 横山 周平, 渡部 智文, 関戸 崇了, 堀井 聡, 吉永 香澄, 丸山 雄樹, 長尾 賢太郎, 山野井 友昭, 河田 達志, 富永 悠介, 定平 卓也, 岩田 健宏, 片山 聡, 枝村 康平, 小林 知子, 小林 泰之, 石井 亜矢乃, 渡部 昌実, 渡邉 豊彦, 荒木 元朗, 枝木 大治, 加藤 源太郎

    西日本泌尿器科   86 ( 増刊号1 )   57 - 57   2024年1月

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    記述言語:日本語   出版者・発行元:(一社)西日本泌尿器科学会  

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  • 腎提供後11年経過の若年ドナーに認めたT3a腎細胞癌の1例

    原 尚史, 西村 慎吾, 長崎 直也, 奥村 美紗, 尾地 晃典, 川野 香, 渡部 智文, 関戸 崇了, 堀井 聡, 吉永 香澄, 丸山 雄樹, 山野井 智昭, 長尾 賢太郎, 河田 達志, 富永 悠介, 定平 卓也, 岩田 健宏, 片山 聡, 枝村 康平, 小林 知子, 小林 泰之, 石井 亜矢乃, 渡部 昌実, 渡邉 豊彦, 荒木 元朗

    西日本泌尿器科   86 ( 増刊号1 )   24 - 24   2024年1月

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    記述言語:日本語   出版者・発行元:(一社)西日本泌尿器科学会  

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  • 生体腎移植レシピエントの周術期尿路感染症リスク因子の検討

    西村 慎吾, 長崎 直也, 奥村 美紗, 原 尚史, 川野 香, 横山 周平, 渡部 智文, 関戸 崇了, 堀井 聡, 吉永 香澄, 丸山 雄樹, 長尾 賢太郎, 山野井 友昭, 河田 達志, 富永 悠介, 定平 卓也, 岩田 健宏, 片山 聡, 枝村 康平, 小林 知子, 小林 泰之, 石井 亜矢乃, 渡部 昌実, 渡邉 豊彦, 荒木 元朗

    西日本泌尿器科   86 ( 増刊号1 )   56 - 56   2024年1月

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    記述言語:日本語   出版者・発行元:(一社)西日本泌尿器科学会  

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  • 高度腸骨動脈石灰化を有するレシピエントに対する脳死献腎移植の経験

    吉永 香澄, 西村 慎吾, 長崎 直也, 奥村 美紗, 尾地 晃典, 原 尚史, 川野 香, 横山 周平, 渡部 智文, 関戸 崇了, 堀井 聡, 丸山 雄樹, 長尾 賢太郎, 山野井 友昭, 河田 達志, 富永 悠介, 定平 卓也, 岩田 健宏, 片山 聡, 枝村 康平, 小林 知子, 小林 泰之, 石井 亜矢乃, 渡部 昌実, 渡邉 豊彦, 荒木 元朗, 三浦 望, 加藤 源太郎

    西日本泌尿器科   86 ( 増刊号1 )   56 - 57   2024年1月

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    記述言語:日本語   出版者・発行元:(一社)西日本泌尿器科学会  

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  • The current status and novel advances of boron neutron capture therapy clinical trials. 査読 国際誌

    Tianyun Zhou, Kazuyo Igawa, Tomonari Kasai, Takuya Sadahira, Wei Wang, Tomofumi Watanabe, Kensuke Bekku, Satoshi Katayama, Takehiro Iwata, Tadashi Hanafusa, Abai Xu, Motoo Araki, Hiroyuki Michiue, Peng Huang

    American journal of cancer research   14 ( 2 )   429 - 447   2024年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    Boron neutron capture therapy (BNCT) is a treatment method that focuses on improving the cure rate of patients with cancer who are difficult to treat using traditional clinical methods. By utilizing the high neutron absorption cross-section of boron, material rich in boron inside tumor cells can absorb neutrons and release high-energy ions, thereby destroying tumor cells. Owing to the short range of alpha particles, this method can precisely target tumor cells while minimizing the inflicted damage to the surrounding normal tissues, making it a potentially advantageous method for treating tumors. Globally, institutions have progressed in registered clinical trials of BNCT for multiple body parts. This review summarized the current achievements in registered clinical trials, Investigator-initiated clinical trials, aimed to integrate the latest clinical research literature on BNCT and to shed light on future study directions.

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  • 腎移植術における血管吻合 ロボット手術もふまえて

    荒木 元朗, 西村 慎吾, 吉永 香澄, 窪田 理沙, 関戸 崇了, 丸山 雄樹, 山野井 友昭, 富永 悠介, 片山 聡, 岩田 健宏, 別宮 謙介, 枝村 康平, 小林 知子, 小林 泰之

    日本血管外科学会雑誌   33 ( Suppl. )   SP2 - 5   2024年

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    記述言語:日本語   出版者・発行元:(NPO)日本血管外科学会  

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  • The Diagnosis and Treatment Approach for Oligo-Recurrent and Oligo-Progressive Renal Cell Carcinoma. 査読 国際誌

    Kensuke Bekku, Tatsushi Kawada, Takanori Sekito, Kasumi Yoshinaga, Yuki Maruyama, Tomoaki Yamanoi, Yusuke Tominaga, Takuya Sadahira, Satoshi Katayama, Takehiro Iwata, Shingo Nishimura, Kohei Edamura, Tomoko Kobayashi, Yasuyuki Kobayashi, Motoo Araki, Yuzuru Niibe

    Cancers   15 ( 24 )   2023年12月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    One-third of renal cell carcinomas (RCCs) without metastases develop metastatic disease after extirpative surgery for the primary tumors. The majority of metastatic RCC cases, along with treated primary lesions, involve limited lesions termed "oligo-recurrent" disease. The role of metastasis-directed therapy (MDT), including stereotactic body radiation therapy (SBRT) and metastasectomy, in the treatment of oligo-recurrent RCC has evolved. Although the surgical resection of all lesions alone can have a curative intent, SBRT is a valuable treatment option, especially for patients concurrently receiving systemic therapy. Contemporary immune checkpoint inhibitor (ICI) combination therapies remain central to the management of metastatic RCC. However, one objective of MDT is to delay the initiation of systemic therapies, thereby sparing patients from potentially unnecessary burdens. Undertaking MDT for cases showing progression under systemic therapies, known as "oligo-progression", can be complex in considering the treatment approach. Its efficacy may be diminished compared to patients with stable disease. SBRT combined with ICI can be a promising treatment for these cases because radiation therapy has been shown to affect the tumor microenvironment and areas beyond the irradiated sites. This may enhance the efficacy of ICIs, although their efficacy has only been demonstrated in clinical trials.

    DOI: 10.3390/cancers15245873

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  • Prognostic impact of radiological tumor burden in patients with metastatic urothelial carcinoma treated with pembrolizumab 査読

    Satoshi Katayama, Takehiro Iwata, Tasushi Kawada, Yusuke Okamoto, Yuho Sano, Yuya Kawago, Shuji Miyake, Takatoshi Moriwake, Aya Kuinose, Yuhei Horikawa, Kazuma Tsuboi, Ichiro Tsuboi, Kazuma Sakaeda, Hirokazu Nakatsuka, Atsushi Takamoto, Takeshi Hirata, Yoshinori Shirasaki, Taku Yamasaki, Hirofumi Morinaka, Naoya Nagasaki, Takafumi Hara, Akinori Ochi, Misa Okumura, Tomofumi Watanabe, Takanori Sekito, Kaoru Kawano, Satoshi Horii, Tomoaki Yamanoi, Kentaro Nagao, Kasumi Yoshinaga, Yuki Maruyama, Yusuke Tominaga, Takuya Sadahira, Shingo Nishimura, Kohei Edamura, Tomoko Kobayashi, Norihiro Kusumi, Kyohei Kurose, Yasuo Yamamoto, Morito Sugimoto, Tetsuya Nakada, Katsumi Sasaki, Tadasu Takenaka, Shin Ebara, Yoshiyuki Miyaji, Koichiro Wada, Yasuyuki Kobayashi, Motoo Araki

    Urologic Oncology: Seminars and Original Investigations   2023年12月

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    掲載種別:研究論文(学術雑誌)   出版者・発行元:Elsevier BV  

    DOI: 10.1016/j.urolonc.2023.11.009

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  • 性同一性障害に対するフィナステリドの安全性の検討について:中間報告

    富永 悠介, 小林 知子, 松本 裕子, 定平 卓也, 片山 聡, 岩田 健宏, 西村 慎吾, 枝村 康平, 小林 泰之, 渡部 昌実, 荒木 元朗

    GID(性同一性障害)学会雑誌   16 ( 1 )   165 - 167   2023年12月

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    記述言語:日本語   出版者・発行元:GID(性同一性障害)学会  

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  • Treg細胞の活性化CTLA-4非依存性免疫抑制によるCTLA-4遮断の不安定な抗腫瘍効果(Disturbed anti-tumor effect of CTLA-4 blockade by activated CTLA-4-independent immunosuppression of Treg cells)

    渡部 智文, 石野 貴雅, 上田 優輝, 長崎 譲慈, 河田 達志, 定平 卓也, 岩田 健宏, 片山 聡, 枝村 康平, 小林 泰之, 團迫 浩方, 荒木 元朗, 冨樫 庸介

    西日本泌尿器科学会総会抄録集   75回   185 - 185   2023年11月

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    記述言語:英語   出版者・発行元:(一社)西日本泌尿器科学会  

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  • 岡山大学病院におけるRAPN再発・転移症例の検討

    吉永 香澄, 冨永 悠介, 定平 卓也, 岩田 健宏, 片山 聡, 西村 慎吾, 枝村 康平, 小林 知子, 小林 泰之, 荒木 元朗

    日本泌尿器内視鏡・ロボティクス学会総会   37回   O - 3   2023年11月

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    記述言語:日本語   出版者・発行元:(一社)日本泌尿器内視鏡・ロボティクス学会  

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  • Treg細胞の活性化CTLA-4非依存性免疫抑制によるCTLA-4遮断の不安定な抗腫瘍効果(Disturbed anti-tumor effect of CTLA-4 blockade by activated CTLA-4-independent immunosuppression of Treg cells)

    渡部 智文, 石野 貴雅, 上田 優輝, 長崎 譲慈, 河田 達志, 定平 卓也, 岩田 健宏, 片山 聡, 枝村 康平, 小林 泰之, 團迫 浩方, 荒木 元朗, 冨樫 庸介

    西日本泌尿器科学会総会抄録集   75回   185 - 185   2023年11月

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    記述言語:英語   出版者・発行元:(一社)西日本泌尿器科学会  

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  • Calciphylaxisによると考えられた陰茎亀頭部潰瘍の一例

    川野 香, 長尾 賢太郎, 岩田 健宏, 富永 悠介, 片山 聡, 定平 卓也, 西村 慎吾, 枝村 康平, 小林 知子, 小林 泰之, 荒木 元朗, 平井 陽至

    西日本泌尿器科学会総会抄録集   75回   233 - 233   2023年11月

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    記述言語:日本語   出版者・発行元:(一社)西日本泌尿器科学会  

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  • 超高齢膀胱癌患者に対するロボット支援膀胱全摘除術(RARC)の外科的達成評価の検討

    山野井 友昭, 小林 泰之, 長尾 賢太郎, 河田 達志, 富永 悠介, 定平 卓也, 片山 聡, 岩田 健宏, 西村 慎吾, 別宮 謙介, 枝村 康平, 小林 知子, 荒木 元朗

    西日本泌尿器科学会総会抄録集   75回   209 - 209   2023年11月

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    記述言語:日本語   出版者・発行元:(一社)西日本泌尿器科学会  

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  • 閉経後の反復性膀胱炎を有する女性における尿および腟内の大腸菌の相同性の比較

    関戸 崇了, 定平 卓也, 岩田 健宏, 富永 悠介, 片山 聡, 西村 慎吾, 枝村 康平, 小林 知子, 小林 泰之, 石井 亜矢乃, 渡部 昌実, 渡邉 豊彦, 荒木 元朗

    西日本泌尿器科学会総会抄録集   75回   239 - 239   2023年11月

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    記述言語:日本語   出版者・発行元:(一社)西日本泌尿器科学会  

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  • ロボット支援下前立腺全摘除術(RARP)の周術期抗菌薬投与方法と術後感染症発生率に関する後方視的研究

    長崎 直也, 定平 卓也, 岩田 健宏, 渡部 智文, 山野井 友昭, 河田 達志, 富永 悠介, 片山 聡, 西村 慎吾, 枝村 康平, 小林 知子, 小林 泰之, 荒木 元朗

    西日本泌尿器科学会総会抄録集   75回   236 - 236   2023年11月

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    記述言語:日本語   出版者・発行元:(一社)西日本泌尿器科学会  

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  • 当科におけるロボット支援膀胱全摘除術・体腔内尿路変向の技術継承の取り組み

    山野井 友昭, 小林 泰之, 定平 卓也, 片山 聡, 岩田 健宏, 西村 慎吾, 別宮 謙介, 枝村 康平, 小林 知子, 荒木 元朗

    日本泌尿器内視鏡・ロボティクス学会総会   37回   O - 6   2023年11月

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    記述言語:日本語   出版者・発行元:(一社)日本泌尿器内視鏡・ロボティクス学会  

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  • 当科におけるロボット支援膀胱全摘除術・体腔内尿路変向の技術継承の取り組み

    山野井 友昭, 小林 泰之, 定平 卓也, 片山 聡, 岩田 健宏, 西村 慎吾, 別宮 謙介, 枝村 康平, 小林 知子, 荒木 元朗

    日本泌尿器内視鏡・ロボティクス学会総会   37回   O - 6   2023年11月

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    記述言語:日本語   出版者・発行元:(一社)日本泌尿器内視鏡・ロボティクス学会  

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  • 岡山大学病院におけるRAPN再発・転移症例の検討

    吉永 香澄, 冨永 悠介, 定平 卓也, 岩田 健宏, 片山 聡, 西村 慎吾, 枝村 康平, 小林 知子, 小林 泰之, 荒木 元朗

    日本泌尿器内視鏡・ロボティクス学会総会   37回   O - 3   2023年11月

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    記述言語:日本語   出版者・発行元:(一社)日本泌尿器内視鏡・ロボティクス学会  

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  • AirSealがロボット支援腹腔鏡下膀胱全摘除術の臨床経過に及ぼす影響に関する検討

    河田 達志, 山野井 友昭, 長尾 賢太郎, 岩田 健宏, 片山 聡, 西村 慎吾, 枝村 康平, 小林 知子, 小林 泰之, 荒木 元朗

    日本泌尿器内視鏡・ロボティクス学会総会   37回   P - 2   2023年11月

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    記述言語:日本語   出版者・発行元:(一社)日本泌尿器内視鏡・ロボティクス学会  

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  • 転移性去勢抵抗性前立腺癌におけるBRCA遺伝子バリアントの検討

    岩田 健宏, 吉永 香澄, 丸山 雄樹, 河田 達志, 定平 卓也, 富永 悠介, 片山 聡, 西村 慎吾, 別宮 謙介, 枝村 康平, 小林 知子, 小林 泰之, 渡部 昌実, 渡邉 豊彦, 荒木 元朗

    日本癌治療学会学術集会抄録集   61回   P12 - 5   2023年10月

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    記述言語:英語   出版者・発行元:(一社)日本癌治療学会  

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  • CTLA-4の単純な阻害はTreg細胞のCTLA-4以外の免疫抑制機構の活性化を引き起こす(Anti-tumor effects of CTLA-4 blockade are distrubed by activated CTLA-4-independent immunosuppression of Treg cells)

    渡部 智文, 石野 貴雅, 上田 優輝, 長崎 譲慈, 丸山 雄樹, 河田 達志, 定平 卓也, 岩田 健宏, 片山 聡, 西村 慎吾, 枝村 康平, 小林 知子, 小林 泰之, 團迫 浩方, 荒木 元朗, 冨樫 庸介

    日本癌学会総会記事   82回   1380 - 1380   2023年9月

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    記述言語:英語   出版者・発行元:(一社)日本癌学会  

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  • LOH症候群における各種質問票の有用性について

    富永 悠介, 小林 知子, 松本 裕子, 定平 卓也, 片山 聡, 岩田 健宏, 西村 慎吾, 枝村 康平, 小林 泰之, 佐古 智子, 杉本 盛人, 渡部 昌実, 荒木 元朗

    日本性機能学会雑誌   38 ( 2 )   182 - 182   2023年8月

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    記述言語:日本語   出版者・発行元:(一社)日本性機能学会  

    J-GLOBAL

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  • ロボット支援腹腔鏡下膀胱全摘除術における予防的全腟閉鎖術併用の試み

    小林 知子, 西村 慎吾, 富永 悠介, 宇埜 誠, 吉永 香澄, 丸山 雄樹, 定平 卓也, 片山 聡, 岩田 健宏, 枝村 康平, 小林 泰之, 石井 亜矢乃, 渡部 昌実, 渡邉 豊彦, 荒木 元朗

    日本女性骨盤底医学会プログラム・抄録集   25回   91 - 91   2023年8月

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    記述言語:日本語   出版者・発行元:日本女性骨盤底医学会  

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  • 腟細菌叢解析による反復性膀胱炎への乳酸菌腟坐剤の効果の検証

    丸山 雄樹, 定平 卓也, 岩田 健宏, 石井 亜矢乃, 和田 耕一郎, 荒木 元朗, 光畑 律子

    日本化学療法学会雑誌   71 ( 4 )   493 - 493   2023年7月

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    記述言語:日本語   出版者・発行元:(公社)日本化学療法学会  

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  • Staphylococcus saprophyticus感染結石による閉塞性腎盂腎炎の一例

    渡部 智文, 定平 卓也, 丸山 雄樹, 岩田 健宏, 荒木 元朗

    日本化学療法学会雑誌   71 ( 4 )   522 - 523   2023年7月

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    記述言語:日本語   出版者・発行元:(公社)日本化学療法学会  

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  • 乳酸菌由来抗菌ペプチドの探索

    岩田 健宏, 定平 卓也, 渡部 智文, 丸山 雄樹, 和田 耕一郎, 山本 満寿美, 石井 亜矢乃, 渡邉 豊彦, 荒木 元朗, 関戸 崇之, 吉永 香澄, 片山 聡, 西村 慎吾, 枝村 康平, 小林 知子, 小林 泰之, 光畑 律子

    日本化学療法学会雑誌   71 ( 4 )   526 - 526   2023年7月

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    記述言語:日本語   出版者・発行元:(公社)日本化学療法学会  

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  • Exploration of the protein-dependent mechanism of Lactobacillus crispatus GAI98322 to prevent recurrent cystitis. 査読 国際誌

    Tomofumi Watanabe, Takuya Sadahira, Hidetada Hirakawa, Peng Huang, Tianyun Zhou, Takehiro Iwata, Takanori Sekito, Ayano Ishii, Masami Watanabe, Motoo Araki

    Journal of infection and chemotherapy : official journal of the Japan Society of Chemotherapy   29 ( 10 )   1001 - 1004   2023年6月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    OBJECTIVES: To elucidate the mechanism of Lactobacillus crispatus (L. crispatus) suppositories to prevent patients from recurrent cystitis (RC), independent from viable-Lactobacilli-bacteria- and acid-dependent ones such as hydrogen peroxide and lactate. METHODS: We used the GAI98322 strain of L. crispatus in all experiments and pH-matched. cell-free culture supernatant of L. crispatus (CFCS) was collected. The growth inhibitory activity and the biofilm formation inhibitory activity of the CFCS against uropathogenic Escherichia coli (UPEC), Extended Spectrum beta (β) Lactamase producing (ESBL+) UPEC, and Pseudomonas aeruginosa (P. aeruginosa) was assessed by agar-disk diffusion tests and crystal violet assay. Also, CFCS was subjected to mass spectrometry to specify ingredients. RESULTS: The CFCS suppressed the proliferation of E. coli, ESBL + E. coli, and P. aeruginosa. Also, the CFCS at a concentration of 40% significantly impeded the biofilm formation of these three bacteria. The aggregation-promoting factor and Lysin was detected from CFCS. CONCLUSIONS: The cell-free supernatant from the GAI98322 strain of L. crispatus inhibits the growth/biofilm formation of broad pathogens by aggregation promoting factor and lysin, which may prevent hosts from RC regardless of the antimicrobial resistance of the pathogens and even under pH modulation.

    DOI: 10.1016/j.jiac.2023.06.013

    PubMed

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  • RPLND後の難治性リンパ漏に対して開腹リンパ管結紮術が奏功した1例

    鵜川 聖也, 長崎 直也, 原 惇也, 松島 萌希, 奥村 美紗, 渡部 智文, 宇埜 誠, 堀井 聡, 吉永 香澄, 丸山 雄樹, 長尾 賢太郎, 山野井 友昭, 富永 悠介, 定平 卓也, 岩田 健宏, 片山 聡, 西村 慎吾, 枝村 康平, 小林 知子, 小林 泰之, 石井 亜矢乃, 渡部 昌実, 渡邉 豊彦, 荒木 元朗

    西日本泌尿器科   85 ( 増刊号2 )   148 - 148   2023年6月

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    記述言語:日本語   出版者・発行元:(一社)西日本泌尿器科学会  

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  • Staphylococcus saprophyticusによる感染結石の1例

    渡部 智文, 鵜川 聖也, 長崎 直也, 奥村 美紗, 宇埜 誠, 堀井 聡, 吉永 香澄, 丸山 雄樹, 山野井 智昭, 長尾 賢太郎, 富永 悠介, 定平 卓也, 片山 聡, 岩田 健宏, 西村 慎吾, 枝村 康平, 小林 知子, 小林 泰之, 石井 亜矢乃, 渡部 昌実, 渡邉 豊彦, 荒木 元朗

    西日本泌尿器科   85 ( 増刊号2 )   148 - 148   2023年6月

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    記述言語:日本語   出版者・発行元:(一社)西日本泌尿器科学会  

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  • アンドロロジー;Next 10 Years 男性不妊症における性機能障害について

    富永 悠介, 松本 裕子, 吉永 香澄, 丸山 雄樹, 定平 卓也, 片山 聡, 岩田 健宏, 西村 慎吾, 枝村 康平, 小林 知子, 小林 泰之, 荒木 元朗

    西日本泌尿器科   85 ( 5 )   324 - 329   2023年6月

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    記述言語:日本語   出版者・発行元:(一社)西日本泌尿器科学会  

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  • 前立腺癌:Next 10 years~どうなる,どうする,前立腺癌~ 限局性前立腺癌に対するFocal therapy

    小林 泰之, 枝村 康平, 西村 慎吾, 岩田 健宏, 片山 聡, 定平 卓也, 小林 知子, 荒木 元朗

    西日本泌尿器科   85 ( 4 )   106 - 109   2023年4月

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    記述言語:日本語   出版者・発行元:(一社)西日本泌尿器科学会  

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  • Gerota fasciaとは何物なのか cadaverを用いた組織学的検討

    小林 泰之, 枝村 康平, 定平 卓也, 富永 悠介, 片山 聡, 岩田 健宏, 西村 慎吾, 別宮 謙介, 小林 知子, 小見山 高明, 百田 龍輔, 荒木 元朗

    Japanese Journal of Endourology and Robotics   36 ( 1 )   118 - 123   2023年4月

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    記述言語:日本語   出版者・発行元:(一社)日本泌尿器内視鏡・ロボティクス学会  

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  • 【ロボット時代の若手への腹腔鏡教育を考える】ロボット時代の若手への腹腔鏡教育を考える 腎副腎 メンターの立場から

    小林 泰之, 枝村 康平, 定平 卓也, 富永 悠介, 片山 聡, 岩田 健宏, 西村 慎吾, 小林 知子, 荒木 元朗

    Japanese Journal of Endourology and Robotics   36 ( 1 )   57 - 60   2023年4月

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    記述言語:日本語   出版者・発行元:(一社)日本泌尿器内視鏡・ロボティクス学会  

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  • 転移性腎細胞がんに対する免疫チェックポイント阻害剤の有効性における転移部位腫瘍径の影響

    岩田健宏, 片山聡, 吉永香澄, 丸山雄樹, 定平卓也, 西村慎吾, 別宮謙介, 枝村康平, 小林知子, 小林泰之, 渡邉豊彦, 荒木元朗

    日本泌尿器科学会総会(Web)   110回   OP25 - 05   2023年4月

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    記述言語:英語  

    J-GLOBAL

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  • cT1腎癌におけるロボット支援腎部分切除(RAPN)と経皮的凍結療法(PCA)の傾向スコアマッチング解析を用いた周術期成績・術後腎機能の検討(Oncological outcomes and renal function in robot-assisted partial nephrectomy vs percutaneous cryoablation for cT1 RCC: A propensity score-matched analysis)

    山野井 友昭, 別宮 謙介, 馬越 紀行, 定平 卓也, 片山 聡, 岩田 健宏, 宇賀 麻由, 西村 慎吾, 枝村 康平, 小林 知子, 小林 泰之, 荒木 元朗, 平木 隆夫

    日本泌尿器科学会総会   110回   PP75 - 01   2023年4月

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    記述言語:英語   出版者・発行元:(一社)日本泌尿器科学会総会事務局  

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  • 局所進行性膀胱癌に対する根治的膀胱全摘除術前化学療法としてのゲムシタビン、シスプラチン、パクリタキセル3剤併用化学療法の治療成績(Clinical Outcomes of Neoadjuvant Paclitaxel/Cisplatin/Gemcitabine compared with Gemcitabine/Cisplatin for Muscle-Invasive Bladder cancer)

    河田 達志, 別宮 謙介, 片山 聡, 岩田 健宏, 枝村 康平, 小林 泰之, 津川 卓士, 坪井 一馬, 定平 卓也, 西村 慎吾, 小林 知子, 江原 伸, 荒木 元朗

    日本泌尿器科学会総会   110回   OP36 - 02   2023年4月

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    記述言語:英語   出版者・発行元:(一社)日本泌尿器科学会総会事務局  

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  • Tumor burdenはペムブロリズマブ療法を受けた転移性尿路上皮癌患者の予後因子となる 多施設共同研究(Radiological tumor burden as prognostic biomarker in patients with metastatic urothelial carcinoma treated with immune checkpoint inhibitor)

    片山 聡, 岩田 健宏, 小林 泰之, 小林 知子, 枝村 康平, 坪井 一馬, 高本 篤, 坪井 一朗, 久住 倫宏, 中田 哲也, 佐々木 克己, 和田 耕一郎, 荒木 元朗

    日本泌尿器科学会総会   110回   OP79 - 02   2023年4月

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    記述言語:英語   出版者・発行元:(一社)日本泌尿器科学会総会事務局  

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  • The Genotypic and Phenotypic Characteristics Contributing to Flomoxef Sensitivity in Clinical Isolates of ESBL-Producing E. coli Strains from Urinary Tract Infections 査読

    Kazuma Sakaeda, Takuya Sadahira, Yuki Maruyama, Takehiro Iwata, Masami Watanabe, Koichiro Wada, Motoo Araki

    Antibiotics   12 ( 3 )   522 - 522   2023年3月

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    掲載種別:研究論文(学術雑誌)   出版者・発行元:MDPI AG  

    We carried out a molecular biological analysis of extended-spectrum β-lactamase (ESBL)-producing E. coli strains and their sensitivity to flomoxef (FMOX). Sequence type (ST) analysis by multilocus sequence typing (MLST) and classification of ESBL genotypes by multiplex PCR were performed on ESBL-producing E. coli strains isolated from urine samples collected from patients treated at our institution between 2008 and 2018. These sequences were compared with results for antimicrobial drug susceptibility determined using a micro-liquid dilution method. We also analyzed cases treated with FMOX at our institution to examine its clinical efficacy. Of the 911 E. coli strains identified, 158 (17.3%) were ESBL-producing. Of these, 67.7% (107/158) were strain ST-131 in ST analysis. Nearly all (154/158; 97.5%) were CTX-M genotypes, with M-14 and M-27 predominating. The isolated strains were sensitive to FMOX in drug susceptibility tests. Among the patient samples, 33 cases received FMOX, and of these, 5 had ESBL-producing E. coli. Among these five cases, three received FMOX for surgical prophylaxis as urinary carriers of ESBL-producing E. coli, and postoperative infections were prevented in all three patients. The other two patients received FMOX treatment for urinary tract infections. FMOX treatment was successful for one, and the other was switched to carbapenem. Our results suggest that FMOX has efficacy for perioperative prophylactic administration in urologic surgery involving carriers of ESBL-producing bacteria and for therapeutic administration for urinary tract infections. Use of FMOX avoids over-reliance on carbapenems or β-lactamase inhibitors and thus is an effective antimicrobial countermeasure.

    DOI: 10.3390/antibiotics12030522

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  • 腟細菌叢解析による反復性膀胱炎への乳酸菌腟坐剤の効果の検証

    丸山 雄樹, 定平 卓也, 岩田 健宏, 石井 亜矢乃, 和田 耕一郎, 荒木 元朗

    日本感染症学会総会・学術講演会・日本化学療法学会学術集会合同学会プログラム・抄録集   97回・71回   O - 172   2023年3月

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    記述言語:日本語   出版者・発行元:日本感染症学会・日本化学療法学会  

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  • 乳酸菌由来抗菌ペプチドの探索

    岩田 健宏, 定平 卓也, 渡部 智文, 丸山 雄樹, 和田 耕一郎, 山本 満寿美, 石井 亜矢乃, 渡邉 豊彦, 荒木 元朗

    日本感染症学会総会・学術講演会・日本化学療法学会学術集会合同学会プログラム・抄録集   97回・71回   P - 168   2023年3月

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    記述言語:日本語   出版者・発行元:日本感染症学会・日本化学療法学会  

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  • Staphylococcus saprophyticus感染結石による閉塞性腎盂腎炎の一例

    渡部 智文, 定平 卓也, 丸山 雄樹, 岩田 健宏, 荒木 元朗

    日本感染症学会総会・学術講演会・日本化学療法学会学術集会合同学会プログラム・抄録集   97回・71回   P - 142   2023年3月

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    記述言語:日本語   出版者・発行元:日本感染症学会・日本化学療法学会  

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  • 異所性腎患者に発生したmicropapillary variantを伴う筋層浸潤性膀胱癌に対して,ロボット支援下膀胱全摘除術を施行した一例

    原 惇也, 堀井 聡, 岩田 健宏, 鵜川 聖也, 長崎 直也, 松島 萌希, 奥村 美紗, 渡部 智文, 関戸 崇了, 吉永 香澄, 丸山 雄樹, 長尾 賢太郎, 山野井 友昭, 富永 悠介, 定平 卓也, 片山 聡, 西村 慎吾, 別宮 謙介, 枝村 康平, 小林 知子, 荒木 元朗, 石井 亜矢乃, 渡部 昌実, 渡邉 豊彦, 小林 泰之

    西日本泌尿器科   85 ( 増刊号1 )   46 - 46   2023年1月

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    記述言語:日本語   出版者・発行元:(一社)西日本泌尿器科学会  

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  • 転移性尿路上皮癌に対するペムブロリズマブの治療成績 多施設共同研究

    片山 聡, 岩田 健宏, 小林 泰之, 長尾 賢太郎, 小林 知子, 別宮 謙介, 枝村 康平, 荒木 元朗, 坪井 一馬, 高本 篤, 久住 倫宏, 中田 哲也, 佐々木 克己, 山崎 拓, 杭ノ瀬 彩, 佐野 雄芳, 川合 裕也, 山本 康雄, 竹中 皇, 平田 武志, 中塚 浩一, 杉本 盛人, 堀川 雄平, 榮枝 一磨, 白崎 義範, 森分 貴俊, 坪井 一朗, 和田 耕一郎

    西日本泌尿器科   85 ( 増刊号1 )   71 - 72   2023年1月

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    記述言語:日本語   出版者・発行元:(一社)西日本泌尿器科学会  

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  • Etiology of recurrent cystitis in postmenopausal women based on vaginal microbiota and the role of Lactobacillus vaginal suppository. 査読 国際誌

    Takanori Sekito, Koichiro Wada, Ayano Ishii, Takehiro Iwata, Takehiro Matsubara, Shuta Tomida, Masami Watanabe, Motoo Araki, Takuya Sadahira

    Frontiers in microbiology   14   1187479 - 1187479   2023年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    BACKGROUND: The vaginal microbiota can be altered by uropathogenic bacteria associated with recurrent cystitis (RC), and the vaginal administration of Lactobacillus have suggested certain effects to prevent RC. The relationship between vaginal microbiota and the development of RC has not been elucidated. We aimed to clarify the etiology of RC from vaginal microbiota and importance of vaginal Lactobacillus. METHODS: Vaginal samples obtained from 39 postmenopausal women were classified into four groups: healthy controls; uncomplicated cystitis; RC; and prevention (prevented RC by Lactobacillus crispatus-containing vaginal suppositories). Principal coordinate analysis and beta-diversity analysis was used to assess 16S rRNA gene sequencing data from the vaginal microbiome. RESULTS: Cluster analysis divided the vaginal bacterial communities among 129 vaginal samples into three clusters (A, B, and C). Fourteen of 14 (100%) samples from the RC group and 51 of 53 (96%) samples from the prevention group were in clusters B and C, while 29 of 38 (76%) samples from the healthy group and 14 of 24 (58%) samples from the uncomplicated cystitis group were in cluster A. The principal coordinate analysis showed that plots in the uncomplicated cystitis group were similar to the healthy group, indicating a large separation between the RC group and the uncomplicated cystitis group. On beta-diversity analysis, there were significant differences between the healthy group and the uncomplicated cystitis group (p = 0.045), and between the RC group and the uncomplicated cystitis group or the healthy group (p = 0.001, p = 0.001, respectively). There were no significant differences between the RC group and the prevention group (p = 0.446). The top six taxa were as follows: Prevotella, Lactobacillus, Streptococcus, Enterobacteriaceae, Anaerococcus, and Bifidobacterium. Among patients with RC, Lactobacillus was undetectable before administration of suppositories, while the median relative abundance of Lactobacillus was 19% during administration of suppositories (p = 0.0211), reducing the average cystitis episodes per year (6.3 vs. 2.4, p = 0.0015). CONCLUSION: The vaginal microbiota of postmenopausal women with RC is differed from healthy controls and uncomplicated cystitis in terms of lack of Lactobacillus and relatively dominant of Enterobacteriaceae. Vaginal administration of Lactobacillus-containing suppositories can prevent RC by stabilizing vaginal dysbiosis and causing a loss of pathogenic bacteria virulence.

    DOI: 10.3389/fmicb.2023.1187479

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  • Bladder tuberculosis with ureteral strictures after bacillus Calmette‑Guérin therapy for urinary bladder cancer: A case report 査読

    Yusuke Tominaga, Masanori Fujii, Takuya Sadahira, Satoshi Katayama, Takehiro Iwata, Shingo Nishimura, Kensuke Bekku, Kohei Edamura, Tomoko Kobayashi, Yasuyuki Kobayashi, Katsuyuki Kiura, Yoshinobu Maeda, Koichiro Wada, Motoo Araki

    Molecular and Clinical Oncology   18 ( 2 )   2022年12月

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    掲載種別:研究論文(学術雑誌)   出版者・発行元:Spandidos Publications  

    DOI: 10.3892/mco.2022.2603

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  • テストステロン補充療法による経時的身体変化の解析

    富永 悠介, 佐古 智子, 松本 裕子, 杉本 盛人, 岩田 健宏, 西村 慎吾, 枝村 康平, 小林 泰之, 渡部 昌実, 荒木 元朗

    GID(性同一性障害)学会雑誌   15 ( 1 )   198 - 199   2022年12月

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    記述言語:日本語   出版者・発行元:GID(性同一性障害)学会  

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  • Feasibility of robot‑assisted radical cystectomy in a patient with an ectopic kidney: A case report 査読

    Kohei Edamura, Takuya Sadahira, Junya Hara, Takehiro Iwata, Wataru Ando, Satoshi Horii, Kentaro Nagao, Asuyuki Kobayashi, Motoo Araki

    Medicine International   3 ( 1 )   2022年11月

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    掲載種別:研究論文(学術雑誌)   出版者・発行元:Spandidos Publications  

    DOI: 10.3892/mi.2022.61

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  • ロボット支援腹腔鏡下腎盂形成術(右側)

    小林 泰之, 片山 聡, 岩田 健宏, 西村 慎吾, 別宮 謙介, 枝村 康平, 小林 知子, 荒木 元朗

    日本泌尿器内視鏡・ロボティクス学会総会   36回   J - 1   2022年11月

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    記述言語:日本語   出版者・発行元:(一社)日本泌尿器内視鏡・ロボティクス学会  

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  • 当院におけるMRI/TRUS融合画像ガイド下前立腺生検初期成績の臨床的検討

    長尾 賢太郎, 片山 聡, 岩田 健宏, 西村 慎吾, 高本 篤, 別宮 謙介, 枝村 康平, 小林 知子, 小林 泰之, 荒木 元朗

    日本泌尿器内視鏡・ロボティクス学会総会   36回   P - 1   2022年11月

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    記述言語:日本語   出版者・発行元:(一社)日本泌尿器内視鏡・ロボティクス学会  

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  • 異所性腎患者の筋層浸潤性膀胱癌に対して、RARC+ICUDを施行した一例

    堀井 聡, 原 惇也, 岩田 健宏, 長尾 賢太郎, 片山 聡, 別宮 謙介, 枝村 康平, 小林 知子, 荒木 元朗, 小林 泰之

    日本泌尿器内視鏡・ロボティクス学会総会   36回   O - 2   2022年11月

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    記述言語:日本語   出版者・発行元:(一社)日本泌尿器内視鏡・ロボティクス学会  

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  • ロボット支援下前立腺全摘除術中にモノポーラシザースのチップカバーが脱落し、発見が困難であった一例

    長尾 賢太郎, 岩田 健宏, 西村 慎吾, 高本 篤, 佐古 智子, 枝村 康平, 荒木 元朗, 渡邉 豊彦, 那須 保友, 小林 泰之

    Japanese Journal of Endourology and Robotics   35 ( 1 )   168 - 172   2022年4月

  • Post-prostate biopsy acute bacterial prostatitis and screening cultures using selective media: An overview. 査読 国際誌

    Herik Acosta, Takuya Sadahira, Takanori Sekito, Yuki Maruyama, Takehiro Iwata, Motoo Araki, Kohei Ogawa, Ichiro Tsuboi, Koichiro Wada

    International journal of urology : official journal of the Japanese Urological Association   29 ( 6 )   486 - 493   2022年2月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    The development of several culture media and the availability to isolate and treat pathogens prior to a surgical procedure give us the ability to minimize treatment-related complications, and ultimately results in better outcomes for patients and avoidance of unwanted post-procedure inpatient admissions. In the last decade, an increasing incidence of multidrug-resistant Escherichia coli, especially extended-spectrum beta-lactamase-producing E. coli and fluoroquinolone-resistant pathogens, has been reported. These resistant species frequently colonize the rectal flora and gain access to the systemic circulation via the rectal plexus following a prostate biopsy. The bacteria can eventually lead to life-threatening complications, which is especially important in high-risk patients with multiple co-morbidities. Previously published studies have focused on the isolation of these pathogens with selective media before an invasive procedure and the potential benefits of incorporating the use of selective media as a mandatory pre-operative step. This preventive measure will allow us to offer a tailored prophylactic treatment that benefits patients and reduces the economic burden for the hospital.

    DOI: 10.1111/iju.14824

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  • Medical uses for silver nitrate in the urinary tract (Review) 査読

    Takanori Sekito, Takuya Sadahira, Toyohiko Watanabe, Yuki Maruyama, Tomofumi Watanabe, Takehiro Iwata, Koichiro Wada, Kohei Edamura, Motoo Araki, Masami Watanabe

    World Academy of Sciences Journal   4 ( 1 )   2022年1月

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    掲載種別:研究論文(学術雑誌)   出版者・発行元:Spandidos Publications  

    DOI: 10.3892/wasj.2022.141

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  • A Novel Technique Using Fluorescent Ureteral Catheter and Flexible Ureteroscope for Safe Laparoscopic Fenestration of Lymphocele after Kidney Transplantation. 査読 国際誌

    Takanori Sekito, Motoo Araki, Koichiro Wada, Kasumi Yoshinaga, Yuki Maruyama, Takuya Sadahira, Satoshi Katayama, Takehiro Iwata, Shingo Nishimura, Tomoko Sako, Kohei Edamura, Yasuyuki Kobayashi, Toyohiko Watanabe

    Case reports in transplantation   2022   9948425 - 9948425   2022年

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    記述言語:英語  

    Laparoscopic fenestration of a postrenal transplant lymphocele is associated with a risk of renal hilar vessel and ureteral injury. Consequently, determination of the incision line is difficult. We describe a case of a 73-year-old man with postrenal transplant lymphocele who underwent a laparoscopic fenestration. We report a surgical video containing a new technique of laparoscopic fenestration using a fluorescent ureteral catheter in combination with a flexible ureteroscope. The combination of a fluorescent ureteral catheter and flexible ureteroscope during surgery enabled us to determine the incision line safely and accurately. Intraoperative real-time visualization of the lymphocele and ureter using a fluorescent ureteral catheter and a flexible ureteroscope is safer than conventional methods for laparoscopic fenestration. To the best of our knowledge, this is the first report of this novel technique.

    DOI: 10.1155/2022/9948425

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  • Testosterone Recovery after Neoadjuvant Gonadotropin-Releasing Hormone Antagonist versus Agonist on Permanent Iodine-125 Seed Brachytherapy in Prostate Cancer Patients: A Propensity Score Analysis. 査読

    Takehiro Iwata, Yuki Maruyama, Tatsushi Kawada, Takuya Sadahira, Satoshi Katayama, Atsushi Takamoto, Tomoko Sako, Koichiro Wada, Kohei Edamura, Yasuyuki Kobayashi, Motoo Araki, Masami Watanabe, Toyohiko Watanabe, Yasutomo Nasu

    Acta medica Okayama   75 ( 6 )   705 - 711   2021年12月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    Optimal neoadjuvant hormone therapy (NHT) for reducing prostate cancer (PC) patients' prostate volume pre-brachytherapy is controversial. We evaluated the differential impact of neoadjuvant gonadotropin-releasing hormone (GnRH) antagonist versus agonist on post-brachytherapy testosterone recovery in 112 patients treated pre-brachytherapy with NHT (GnRH antagonist, n=32; GnRH agonists, n=80) (Jan. 2007-June 2019). We assessed the effects of patient characteristics and a GnRH analogue on testosterone recovery with logistic regression and a propensity score analysis (PSA). There was no significant difference in the rate of testosterone recovery to normal levels (> 300 ng/dL) between the GnRH antagonist and agonists (p=0.07). The GnRH agonists induced a significantly more rapid testosterone recovery rate at 3 months post-brachytherapy versus the GnRH antagonist (p<0.0001); there was no difference in testosterone recovery at 12 months between the GnRH antagonist/agonists (p=0.8). In the multivariate analysis, no actor was associated with testosterone recovery. In the PSA, older age and higher body mass index (BMI) were significantly associated with longer testosterone recovery. Post-brachytherapy testosterone recovery was quicker with the neoadjuvant GnRH agonists than the antagonist, and the testosterone recovery rate was significantly associated with older age and higher BMI. Long-term follow-ups are needed to determine any differential effects of GnRH analogues on the quality of life of brachytherapy-treated PC patients.

    DOI: 10.18926/AMO/62810

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  • 浸潤性膀胱癌に対する開腹膀胱全摘除術(ORC)と比較した腹腔鏡下膀胱全摘除術(LRC)の長期治療成績に関する後方視的検討

    和田里 章悟, 小林 泰之, 河田 達志, 定平 卓也, 片山 聡, 岩田 健宏, 西村 慎吾, 高本 篤, 佐古 智子, 和田 耕一郎, 枝村 康平, 荒木 元朗, 渡部 昌実, 渡邉 豊彦, 那須 保友

    西日本泌尿器科   84 ( 2 )   146 - 153   2021年12月

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    記述言語:日本語   出版者・発行元:(一社)西日本泌尿器科学会  

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  • Clinical Efficacy and Safety of Sitafloxacin 200 mg Once Daily for Refractory Genitourinary Tract Infections. 査読

    Takehiro Iwata, Takuya Sadahira, Yuki Maruyama, Takanori Sekito, Kasumi Yoshinaga, Shogo Watari, Kentaro Nagao, Tatsushi Kawada, Yusuke Tominaga, Shingo Nishimura, Atsushi Takamoto, Tomoko Sako, Kohei Edamura, Yasuyuki Kobayashi, Motoo Araki, Ayano Ishii, Masami Watanabe, Toyohiko Watanabe, Yasutomo Nasu, Koichiro Wada

    Acta medica Okayama   75 ( 6 )   763 - 766   2021年12月

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    担当区分:筆頭著者   記述言語:英語   掲載種別:研究論文(学術雑誌)  

    The aim of this ongoing trial is to evaluate the clinical efficacy and safety of sitafloxacin (STFX) 200 mg once daily (QD) for 7 days in patients with refractory genitourinary tract infections, which include recurrent or complicated cystitis, complicated pyelonephritis, bacterial prostatitis, and epididymitis. The primary endpoint is the microbiological efficacy at 5-9 days after the last administration of STFX. Recruitment began in February 2021, and the target total sample size is 92 participants.

    DOI: 10.18926/AMO/62820

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  • 尿路変向術:私の工夫 RARC ICUD失敗から学んだこと

    小林 泰之, 岩田 健宏, 西村 慎吾, 高本 篤, 佐古 智子, 和田 耕一郎, 枝村 康平, 荒木 元朗, 渡邉 豊彦, 那須 保友

    西日本泌尿器科   84 ( 2 )   122 - 127   2021年12月

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    記述言語:日本語   出版者・発行元:(一社)西日本泌尿器科学会  

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  • Impact of paclitaxel, cisplatin, and gemcitabine as first-line chemotherapy in cisplatin-fit and -unfit patients with advanced/metastatic urothelial carcinoma. 査読 国際誌

    Satoshi Katayama, Yasuyuki Kobayashi, Atsushi Takamoto, Kohei Edamura, Takuya Sadahira, Takehiro Iwata, Shingo Nishimura, Tomoko Sako, Koichiro Wada, Motoo Araki, Masami Watanabe, Toyohiko Watanabe, Yasutomo Nasu

    Urologic oncology   39 ( 10 )   731.e25-731.e32   2021年10月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    PURPOSE: This study aimed to clarify the efficacy and toxicity of first-line combination treatment with paclitaxel, cisplatin, and gemcitabine (PCG) for advanced/metastatic urothelial carcinoma (UC) in cisplatin-unfit patients compared with cisplatin-fit patients. METHODS: We conducted a retrospective study of patients who received first-line PCG. Using international consensus criteria, patients were classified into cisplatin-fit and -unfit groups. Cisplatin-unfit patients received PCG with adjustment of the cisplatin dose after assessing 24-hour urinary creatinine clearance, without modifying the administration interval. RESULTS: From 2008 to 2017, 50 patients received first-line PCG, of whom 30 and 20 were classified into the cisplatin-fit and -unfit groups. After a median follow-up of 15.0 months, the median overall survival (OS) and progression-free survival (PFS) were 15.0 and 9.8 months in all patients, 15.0 and 10.0 months in the cisplatin-fit group, and 13.2 and 9.3 months in the cisplatin-unfit group, respectively. There was no significant difference in OS (hazard ratio [HR]: 1.33, 95% confidence interval [CI]: 0.69-2.54) or PFS (HR: 1.38, 95% CI: 0.74-2.55) between the groups. The overall response rate and complete response rate were 58% (95% CI: 43.2-71.8) and 32% (95% CI: 19.5-46.7) in all patients, and 55% (95% CI: 31.5-76.9) and 35% (95% CI: 15.4-59.2) in the cisplatin-unfit group, respectively. The common grade 3 of 4 adverse events experienced were neutropenia (78%), followed by thrombocytopenia (56%), anemia (46%), and febrile neutropenia (16%). The 24-hour urinary creatinine clearance did not differ significantly between the groups after one, two, or three courses of PCG. CONCLUSIONS: We found no significant difference regarding OS and PFS between the cisplatin-fit patients with a full dose of cisplatin and -unfit patients with cisplatin-dose-adjusted chemotherapy. In select cisplatin-unfit patients, PCG with dose adjustment of cisplatin may be useful for treating advanced/metastatic UC without any significant adverse events or impaired renal function compared with cisplatin-fit patients with a full dose of cisplatin.

    DOI: 10.1016/j.urolonc.2021.02.029

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  • Efficacy of Lactobacillus vaginal suppositories for the prevention of recurrent cystitis: A phase II clinical trial. 査読 国際誌

    Takuya Sadahira, Koichiro Wada, Motoo Araki, Ritsuko Mitsuhata, Masumi Yamamoto, Yuki Maruyama, Takehiro Iwata, Masami Watanabe, Toyohiko Watanabe, Reiko Kariyama, Yasutomo Nasu, Ayano Ishii

    International journal of urology : official journal of the Japanese Urological Association   28 ( 10 )   1026 - 1031   2021年10月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    OBJECTIVES: To prospectively assess the efficacy and safety of Lactobacillus vaginal suppositories for the prevention of recurrent cystitis. METHODS: In this single-arm, open-label, phase II clinical trial, participants used vaginal suppositories containing the GAI 98322 strain of Lactobacillus crispatus for 1 year either every 2 days or three times per week. The primary end-point was the response rate, as assessed by the number of episodes of recurrent cystitis during the year of administration. The secondary end-points were the response rate, as assessed by episodes of recurrent cystitis during the 1 year after completion of the administration period; the total number of episodes of recurrent cystitis before, during and after administration; adverse events; and changes in urine bacteria and the vaginal microbiome. RESULTS: A total of 28 women were enrolled, and 21 completed the study. A total of 18 patients achieved an effective response (86%) during administration. The suppressive effects of Lactobacillus vaginal suppositories on episodes of cystitis continued up to 1 year after the last suppository was administered. There was a significant reduction in the mean number of episodes of cystitis, both during and after administration of Lactobacillus vaginal suppositories. No treatment-related adverse events were observed. Amplicon sequencing analysis of the vaginal microbiome showed that Lactobacillus species colonized the vagina during the periods when episodes of cystitis were absent. CONCLUSIONS: Vaginal suppositories containing the GAI 98322 strain of Lactobacillus crispatus effectively prevent episodes of recurrent cystitis, both during administration and for at least 1 year after administration.

    DOI: 10.1111/iju.14636

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  • Comparison of intracorporeal versus extracorporeal urinary diversion after robot-assisted radical cystectomy at a medium-sized facility. 査読

    Takehiro Iwata, Yasuyuki Kobayashi, Yuki Maruyama, Tatsushi Kawada, Takuya Sadahira, Yuko Oiwa, Satoshi Katayama, Shingo Nishimura, Atsushi Takamoto, Tomoko Sako, Koichiro Wada, Kohei Edamura, Motoo Araki, Masami Watanabe, Toyohiko Watanabe, Yasutomo Nasu

    International journal of clinical oncology   26 ( 9 )   1714 - 1721   2021年9月

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    担当区分:筆頭著者   記述言語:英語   掲載種別:研究論文(学術雑誌)  

    BACKGROUND: The aim of this study is to compare the perioperative outcomes and learning curves between intracorporeal and extracorporeal urinary diversion at our medium-sized institution. METHODS: Between January 2018 and September 2020, a single surgeon at our institution performed 46 consecutive robot-assisted radical cystectomies with ileal conduit. We compared the perioperative outcomes between patients who underwent intracorporeal versus extracorporeal urinary diversion. We also investigated learning curves for the first and last 10 patients in each group. RESULTS: The extracorporeal group had shorter overall operative time (P = 0.003) and urinary diversion time (P < 0.0001) than the intracorporeal group. The intracorporeal group had shorter length of hospital stay (P = 0.02). There was no difference in complication and readmission rates. The extracorporeal group demonstrated no difference between the first and last 10 patients for overall operative time or time for cystectomy, lymph node dissection, or urinary diversion. However, the intracorporeal group had shorter urinary diversion time for the last 10 patients compared with the first 10 patients. The first 10 patients in the extracorporeal group had shorter overall operative time than the first 10 in the intracorporeal group, but there was no difference for the last 10 patients. CONCLUSIONS: Intracorporeal urinary diversion requires longer overall operative time than extracorporeal diversion for the first 10 patients, due to longer urinary diversion time. However, there is no difference in overall operative time for the last 10 patients. The benefit of intracorporeal over extracorporeal urinary diversion was not confirmed at our medium-sized institution.

    DOI: 10.1007/s10147-021-01957-1

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  • ハイリスク腎移植 game changers DSA陽性ハイリスク腎移植

    西村 慎吾, 荒木 元朗, 関戸 崇了, 坪井 一朗, 吉永 香澄, 和田里 章悟, 丸山 雄樹, 光井 洋介, 窪田 理沙, 定平 卓也, 岩田 健宏, 高本 篤, 佐古 智子, 枝村 康平, 和田 耕一郎, 小林 泰之, 渡邉 豊彦, 那須 保友

    西日本泌尿器科   83 ( 3 )   152 - 160   2021年8月

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    記述言語:日本語   出版者・発行元:(一社)西日本泌尿器科学会  

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  • A Case of Metastatic Fumarate Hydratase-Deficient-like Renal Cell Carcinoma Successfully Managed by Ipilimumab plus Nivolumab. 査読

    Takanori Sekito, Atsushi Takamoto, Yasuyuki Kobayashi, Masao Mitsui, Shogo Watari, Risa Kubota, Takuya Sadahira, Takehiro Iwata, Shingo Nishimura, Kohei Edamura, Tomoko Sako, Motoo Araki, Masami Watanabe, Toyohiko Watanabe, Rei Shibata, Daisuke Ennishi, Yasutomo Nasu

    Acta medica Okayama   75 ( 3 )   397 - 402   2021年6月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    We report a 62-year-old male with metastatic fumarate hydratase-deficient renal cell carcinoma (FH-deficient RCC) without fumarate hydratase (FH) mutation (FH-deficient-like RCC). The International Metastatic RCC Database Consortium risk score was intermediate, and immunotherapy with nivolumab and ipilimumab (Ipi/ Nivo) was initiated. Four cycles of Ipi/Nivo and 5 cycles of nivolumab resulted in a complete response of the metastases. Hypophysitis occurred as an immune-related adverse event after four cycles of Ipi/Nivo. The prognosis of patients with FH-deficient RCC is generally poor. Few reports of FH-deficient RCC successfully treated with Ipi/Nivo have been published. Ipi/Nivo can be effective for treating FH-deficient RCC.

    DOI: 10.18926/AMO/62237

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  • 腎門部に発生した粘液嚢胞腺癌の1例

    三宅 修司, 岩田 健宏, 長尾 賢太郎, 河田 達志, 富永 悠介, 定平 卓也, 西村 慎吾, 高本 篤, 佐古 智子, 和田 耕一郎, 枝村 康平, 小林 泰之, 荒木 元朗, 渡部 昌実, 渡邉 豊彦, 久保 寿夫, 柳井 広之, 那須 保友

    西日本泌尿器科   83 ( 2 )   100 - 105   2021年6月

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    記述言語:日本語   出版者・発行元:(一社)西日本泌尿器科学会  

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  • Photodynamic diagnostic ureteroscopy using the VISERA ELITE video system for diagnosis of upper-urinary tract urothelial carcinoma: a prospective cohort pilot study. 査読 国際誌

    Koichiro Wada, Motoo Araki, Ryuta Tanimoto, Takuya Sadahira, Shogo Watari, Yuki Maruyama, Yosuke Mitsui, Hirochika Nakajima, Herik Acosta, Satoshi Katayama, Takehiro Iwata, Shingo Nishimura, Atsushi Takamoto, Tomoko Sako, Kohei Edamura, Yasuyuki Kobayashi, Masami Watanabe, Toyohiko Watanabe, Yasutomo Nasu

    BMC urology   21 ( 1 )   45 - 45   2021年3月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    BACKGROUND: The advantages of photodynamic diagnostic technology using 5-aminolevulinic acid (ALA-PDD) have been established. The aim of this prospective cohort study was to evaluate the usefulness of ALA-PDD to diagnose upper tract urothelial carcinoma (UT-UC) using the Olympus VISERA ELITE video system. METHODS: We carried out a prospective, interventional, non-randomized, non-contrast and open label cohort pilot study that involved patients who underwent ureterorenoscopy (URS) to detect UT-UC. 5-aminolevulinic acid hydrochloride was orally administered before URS. The observational results and pathological diagnosis with ALA-PDD and traditional white light methods were compared, and the proportion of positive subjects and specimens were calculated. RESULTS: A total of 20 patients were enrolled and one patient who had multiple bladder tumors did not undergo URS. Fifteen of 19 patients were pathologically diagnosed with UT-UC and of these 11 (73.3%) were ALA-PDD positive. Fourteen of 19 patients were ALA-PDD positive and of these 11 were pathologically diagnosed with UC. For the 92 biopsy specimens that were malignant or benign, the sensitivity for both traditional white light observation and ALA-PDD was the same at 62.5%, whereas the specificities were 73.1% and 67.3%, respectively. Of the 38 specimens that were randomly biopsied without any abnormality under examination by both white light and ALA-PDD, 11 specimens (28.9%) from 5 patients were diagnosed with high grade UC. In contrast, four specimens from 4 patients, which were negative in traditional white light observation but positive in ALA-PDD, were diagnosed with carcinoma in situ (CIS). CONCLUSIONS: Our results suggest that ALA-PDD using VISERA ELITE is not sufficiently applicable for UT-UC. Nevertheless, it might be better particularly for CIS than white light and superior results would be obtained using VISERA ELITE II video system. TRIAL REGISTRATION: The present clinical study was approved by the Okayama University Institutional Review Board prior to study initiation (Application no.: RIN 1803-002) and was registered with the UMIN Clinical Trials Registry (UMIN-CTR), Japan (Accession no.: UMIN000031205).

    DOI: 10.1186/s12894-021-00819-2

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  • 神経線維腫症1型に合併した後腹膜悪性末梢神経鞘腫瘍の1例

    宗田 大二郎, 岩田 健宏, 定平 卓也, 富永 悠介, 片山 聡, 西村 慎吾, 高本 篤, 佐古 智子, 枝村 康平, 小林 泰之, 荒木 元朗, 渡部 昌実, 渡邉 豊彦, 那須 保友, 中田 英二, 柳井 広之

    西日本泌尿器科   82 ( 6 )   596 - 600   2021年2月

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    記述言語:日本語   出版者・発行元:(一社)西日本泌尿器科学会  

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  • Comparison of inflammation-based prognostic scores as predictors of survival outcomes in patients with germ cell tumors. 査読 国際誌

    Kasumi Yoshinaga, Takuya Sadahira, Yuki Maruyama, Yosuke Mitsui, Takehiro Iwata, Koichiro Wada, Motoo Araki, Toyohiko Watanabe, Yasutomo Nasu

    Investigative and clinical urology   62 ( 1 )   47 - 55   2021年1月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    PURPOSE: The aim of this study was to compare the prognostic value of pretreatment inflammation-based scoring systems in terms of overall survival (OS) and progression-free survival (PFS) in patients with germ cell tumors (GCTs) receiving bleomycin, etoposide, and cisplatin (BEP) chemotherapy. MATERIALS AND METHODS: We evaluated 63 patients with GCTs retrospectively. The Glasgow prognostic score (GPS), neutrophil-to-lymphocyte ratio, prognostic index, platelet-to-lymphocyte ratio (PLR), prognostic nutritional index (PNI), systemic immune-inflammation index, and albumin-to-globulin ratio (AGR) were measured in all patients before chemotherapy. To assess the predictive ability of each scoring system, areas under the receiver operating characteristic curve were calculated, and multivariate analysis was performed to identify associations between the predictive scores and OS. RESULTS: Of all the inflammation-based scoring systems, the GPS had the greatest area under the curve (0.847) for predicting OS, followed by the PNI (0.829) and AGR (0.810). Kaplan-Meier analyses revealed that the GPS, PNI, and AGR were significantly associated with OS, whereas the GPS, PLR, and PNI were significantly associated with PFS. In the multivariate analysis, the GPS was an independent predictor of OS and PFS. CONCLUSIONS: We demonstrated that the GPS was the most valuable biomarker of OS and PFS in patients with GCTs.

    DOI: 10.4111/icu.20200103

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  • Differential Impact of Gonadotropin-releasing Hormone Antagonist Versus Agonist on Clinical Safety and Oncologic Outcomes on Patients with Metastatic Prostate Cancer: A Meta-analysis of Randomized Controlled Trials. 査読 国際誌

    Mohammad Abufaraj, Takehiro Iwata, Shoji Kimura, Anoud Haddad, Hashim Al-Ani, Lana Abusubaih, Marco Moschini, Alberto Briganti, Pierre I Karakiewicz, Shahrokh F Shariat

    European urology   79 ( 1 )   44 - 53   2021年1月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    CONTEXT: Androgen deprivation therapy is the mainstay treatment of metastatic prostate cancer, achieved mainly by gonadotropin-releasing hormone (GnRH) agonists or antagonists. OBJECTIVE: To investigate the differential impact of GnRH agonists and antagonists on clinical safety and oncologic outcomes. EVIDENCE ACQUISITION: This meta-analysis was conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guidelines. A literature search using the electronic databases (MEDLINE, Web of Science, Cochrane Library, and Scopus) included randomized controlled trials comparing the clinical safety and oncologic outcomes of GnRH agonists and antagonists. The endpoints of interest were the following: (1) treatment-related adverse effects (AEs), (2) prostate-specific antigen (PSA) progression, and (3) overall mortality. The relative risk (RR) was used as the summary statistic, and results were reported with 95% confidence intervals (CIs). EVIDENCE SYNTHESIS: Eight clinical trials (20 published studies) comprising 2632 men met our inclusion criteria; of them, 1646 received GnRH antagonist and 986 had GnRH agonist. Treatment-emerging AEs occurred in 73% patients in the GnRH antagonist group and 68% in the GnRH agonist group (RR: 1.10, 95% CI: 1.04-1.15). Serious AEs occurred in 9.8% of the GnRH antagonist and 11% of the GnRH agonist group (RR: 0.92, 95% CI: 0.73-1.17). Antagonists were associated with higher injection site reaction rates (38%) than agonists (4.8%). GnRH antagonist was associated with fewer cardiovascular events (RR: 0.52, 95% CI: 0.34-0.80). There was no significant difference in PSA progression, but GnRH antagonist was associated with lower overall mortality rates than GnRH agonists (RR: 0.48, 95% CI: 0.26-0.90, p =  0.02). CONCLUSIONS: Existing data indicate that GnRH antagonist use is associated with significantly lower overall mortality and cardiovascular events as compared with agonists. These findings should be interpreted with caution owing to the short follow-up duration and assessment of cardiovascular events as secondary endpoints in the included trials. Further studies are needed to validate or refute these observations. Injection site reactions were significantly higher in the GnRH antagonist group. PATIENT SUMMARY: Gonadotropin-releasing hormone (GnRH) antagonist is associated with lower death rates and cardiovascular events than GnRH agonists, based on the data from trials with short follow-up duration. GnRH agonists are associated with lower adverse events, such as decreased libido, hot flushes, erectile dysfunction, back pain, weight gain, constipation, and injection site reactions. There were no significant differences in prostate-specific antigen progression or fatigue.

    DOI: 10.1016/j.eururo.2020.06.002

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  • A Clinical Trial Evaluating the Usefulness of Tailored Antimicrobial Prophylaxis Using Rectal-culture Screening Media Prior to Transrectal Prostate Biopsy: A Multicenter, Randomized Controlled Trial. 査読

    Takuya Sadahira, Yuki Maruyama, Yoshiki Hiyama, Hiroyuki Kitano, Hiroki Yamada, Takayuki Goto, Tsubasa Kondo, Katsumi Shigemura, Yosuke Mitsui, Takehiro Iwata, Kohei Edamura, Motoo Araki, Masami Watanabe, Tadasu Takenaka, Jun Teishima, Yasuyoshi Miyata, Kiyohito Ishikawa, Ei-Ichiro Takaoka, Jun Miyazaki, Satoshi Takahashi, Naoya Masumori, Hiroshi Kiyota, Masato Fujisawa, Shingo Yamamoto, Takafumi Sakuma, Norihiro Kusumi, Takaharu Ichikawa, Toyohiko Watanabe, Yoshitsugu Nasu, Masaya Tsugawa, Yasutomo Nasu, Koichiro Wada

    Acta medica Okayama   75 ( 5 )   663 - 667   2021年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    The aim of this report is to introduce an on-going, multicenter, randomized controlled trial to evaluate whether tailored antimicrobial prophylaxis guided by rectal culture screening prevents acute bacterial prostatitis following transrectal prostate biopsy (TRPB). Patients will be randomized into an intervention or non-intervention group; tazobactam-piperacillin or levofloxacin will be prophylactically administered according to the results of rectal culture prior to TRPB in the intervention group whereas levofloxacin will be routinely given in the non-intervention group. The primary endpoint is the occurrence rate of acute bacterial prostatitis after TRPB. Recruitment begins in April, 2021 and the target total sample size is 5,100 participants.

    DOI: 10.18926/AMO/62782

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  • ロボット支援下仙骨膣固定術の導入に向けて

    佐古 智子, 岩田 健宏, 西村 慎吾, 高本 篤, 和田 耕一郎, 枝村 康平, 小林 泰之, 荒木 元朗, 石井 亜矢乃, 渡邉 豊彦, 那須 保友

    Japanese Journal of Endourology   34 ( 2 )   221 - 225   2021年

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    記述言語:日本語   出版者・発行元:日本泌尿器内視鏡学会  

    骨盤臓器脱に対する治療として, 2010年に経腟メッシュ手術が, 2014年に腹腔鏡下仙骨膣固定術が保険収載され, 泌尿器科医が骨盤臓器脱に対する治療を行うことも一般的になってきている.

    2020年4月の診療報酬改定により, 新たにロボット支援腹腔鏡下仙骨膣固定術が保険収載された. 腹腔鏡下仙骨膣固定術は, 正確な剥離操作を要し, 深部での縫合結紮操作を多用する手術であることなど, 良性疾患に対する手術でありながら手技の難易度が比較的高い術式であると考えられる. これに対して手術支援ロボットを用いることで, 手術の難易度が低減されること, 手術成績が向上することが期待される.

    当院でも2020年8月よりロボット支援下仙骨膣固定術を導入した. ロボット支援下仙骨膣固定術のメリットやデメリット, 導入の意義などについて, 手術導入に向けた取り組みについて述べる.

    DOI: 10.11302/jsejje.34.221

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  • 【地方の腎移植の継続と継承-組織・指導医の取り組みと今後の展望-】岡山大学における腎移植継承の取り組み

    荒木 元朗, 西村 慎吾, 吉永 香澄, 丸山 雄樹, 山野井 友昭, 定平 卓也, 富永 悠介, 岩田 健宏, 片山 聡, 佐古 智子, 枝村 康平, 小林 泰之, 那須 保友

    腎移植・血管外科   33 ( 2 )   67 - 71   2021年

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    記述言語:日本語   出版者・発行元:腎移植・血管外科研究会  

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  • RARCにおけるECUDとICUD (回腸導管) の比較検討

    小林 泰之, 枝村 康平, 岩田 健宏, 西村 慎吾, 和田 耕一郎, 荒木 元朗, 渡辺 豊彦, 那須 保友

    Japanese Journal of Endourology   34 ( 2 )   182 - 185   2021年

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    記述言語:日本語   出版者・発行元:日本泌尿器内視鏡学会  

    岡山大学病院にて2018年1月より2020年9月までの期間に単一術者にて連続的に行われたロボット支援膀胱全摘 (以下 : RARC) 46症例体腔外尿路変更 (以下 : ECUD) (23例), 体腔内尿路変更 (以下 : ICUD) (23例) の比較検討を行った. 検討項目は手術時間, 推定出血量, 輸血率, リンパ節郭清個数, 入院日数, 血液生化学データ, 術後合併症とした. 尿路変更に要した時間はICUD群の方が有意に長かったが, 入院期間はICUD群が有意に短かった. 他の周術期成績はECUDと同等であった. 術者の視点では良好な拡大視野, 尿管導管吻合の精緻性, 同一視野で手術の流れが途切れることなく継続できることがICUDのメリットではないかと考える.

    DOI: 10.11302/jsejje.34.182

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  • 【ロボット手術の教育方法-それぞれの施設での試み-】岡山大学病院泌尿器科におけるロボット手術教育の現状

    小林 泰之, 岩田 健宏, 西村 慎吾, 高本 篤, 佐古 智子, 定平 卓也, 枝村 康平, 荒木 元朗, 渡辺 豊彦, 那須 保友

    Japanese Journal of Endourology   33 ( 2 )   221 - 224   2020年12月

  • 腹腔鏡技術認定医 実際の教育現場を紹介します! 岡山大学泌尿器科における腹腔鏡教育

    小林 泰之, 富永 悠介, 枝村 康平, 岩田 健宏, 西村 慎吾, 高本 篤, 佐古 智子, 荒木 元朗, 渡辺 豊彦, 那須 保友

    日本泌尿器内視鏡学会総会   34回   SY - 1   2020年11月

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    記述言語:日本語   出版者・発行元:(一社)日本泌尿器内視鏡・ロボティクス学会  

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  • Expression of urokinase-type plasminogen activator system in non-metastatic prostate cancer. 査読 国際誌

    Shoji Kimura, David D'Andrea, Takehiro Iwata, Beat Foerster, Florian Janisch, Mehdi Kardoust Parizi, Marco Moschini, Alberto Briganti, Marko Babjuk, Piotr Chlosta, Pierre I Karakiewicz, Dmitry Enikeev, Leonid M Rapoport, Veronica Seebacher, Shin Egawa, Mohammad Abufaraj, Shahrokh F Shariat

    World journal of urology   38 ( 10 )   2501 - 2511   2020年10月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    PURPOSE: To investigate the prognostic role of expression of urokinase-type plasminogen activator system members, such as urokinase-type activator (uPA), uPA-receptor (uPAR), and plasminogen activator inhibitor-1 (PAI-1), in patients treated with radical prostatectomy (RP) for prostate cancer (PCa). METHODS: Immunohistochemical staining for uPA system was performed on a tissue microarray of specimens from 3121 patients who underwent RP. Cox regression analyses were performed to investigate the association of overexpression of these markers alone or in combination with biochemical recurrence (BCR). Decision curve analysis was used to assess the clinical impact of these markers. RESULTS: uPA, uPAR, and PAI-1 were overexpressed in 1012 (32.4%), 1271 (40.7%), and 1311 (42%) patients, respectively. uPA overexpression was associated with all clinicopathologic characteristics of biologically aggressive PCa. On multivariable analysis, uPA, uPAR, and PAI-1 overexpression were all three associated with BCR (HR: 1.75, p < 0.01, HR: 1.22, p = 0.01 and HR: 1.20, p = 0.03, respectively). Moreover, the probability of BCR increased incrementally with increasing cumulative number of overexpressed markers. Decision curve analysis showed that addition of uPA, uPAR, and PAI-1 resulted in a net benefit compared to a base model comparing standard clinicopathologic features across the entire threshold probability range. In subgroup analyses, overexpression of all three markers remained associated with BCR in patients with favorable pathologic characteristics. CONCLUSION: Overexpression of uPA, uPAR, and PAI-1 in PCa tissue were each associated with worse BCR. Additionally, overexpression of all three markers is informative even in patients with favorable pathologic characteristics potentially helping clinical decision-making regarding adjuvant therapy and/or intensified follow-up.

    DOI: 10.1007/s00345-019-03038-5

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  • Tumor suppressor REIC/Dkk-3 and its interacting protein SGTA inhibit glucocorticoid receptor to nuclear transport. 査読 国際誌

    Takehiro Iwata, Takuya Sadahira, Kazuhiko Ochiai, Hideo Ueki, Takanori Sasaki, Peng Haung, Motoo Araki, Toyohiko Watanabe, Yasutomo Nasu, Masami Watanabe

    Experimental and therapeutic medicine   20 ( 2 )   1739 - 1745   2020年8月

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    担当区分:筆頭著者   記述言語:英語   掲載種別:研究論文(学術雑誌)  

    REIC/Dkk-3 is a tumor suppressor, and its expression is significantly downregulated in a variety of human cancer types. A previous study performed yeast two-hybrid screening and identified the small glutamine-rich tetratricopeptide repeat-containing protein α (SGTA), known as a negative modulator of cytoplasmic androgen receptor (AR) signaling, which is a novel interacting partner of REIC/Dkk-3. The previous study also indicated that the REIC/Dkk-3 protein interferes with the dimerization of SGTA and then upregulates the AR transport and signaling in human prostate cancer PC3 cells. Since the transport of some steroid receptors to nucleus is conducted similarly by dynein motor-dependent way, the current study aimed to investigate the role of SGTA and REIC/Dkk-3 in the transport of other glucocorticoid receptors (GR). In vitro reporter assays for the cytoplasmic GR transport were performed in human prostate cancer PC3 cells and 293T cells. As for the SGTA protein, a suppressive effect on the GR transport to the nucleus was observed in the cells. As for the REIC/Dkk-3 protein, an inhibitory effect was observed for the GR transport in PC3 cells. Under the depleted condition of SGTA by short-hairpin (sh)RNA, the downregulation of GR transport by REIC/Dkk-3 was significantly enhanced compared with the non-depleted condition in PC3 cells, suggesting a compensatory role of REIC/Dkk-3 in the SGTA mediated inhibition of GR transport. The current study therefore demonstrated that SGTA inhibited the cytoplasmic transport of GR in 293T and PC3 cells, and REIC/Dkk-3 also inhibited the cytoplasmic transport of GR in PC3 cells. These results may be used to gain novel insight into the GR transport and signaling in normal and cancer cells.

    DOI: 10.3892/etm.2020.8819

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  • Efficacy of Preoperative Chemotherapy for High Risk Upper Tract Urothelial Carcinoma. 査読 国際誌

    Beat Foerster, Mohammad Abufaraj, Firas Petros, Mounsif Azizi, Mohit Gupta, Donald Schweitzer, Vitaly Margulis, Takehiro Iwata, Shoji Kimura, Ahmad Shabsigh, Alberto Briganti, Ja H Ku, Tim Muilwijk, Wassim Kassouf, Surena F Matin, Philippe E Spiess, Phillip M Pierorazio, Kees Hendricksen, Shahrokh F Shariat

    The Journal of urology   203 ( 6 )   1101 - 1108   2020年6月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    PURPOSE: The impact of preoperative chemotherapy in patients with upper urinary tract urothelial carcinoma remains poorly investigated. We assessed the rates of pathological complete response (pT0N0/X) and downstaging (pT1N0/X or less) at radical nephroureterectomy after preoperative chemotherapy and evaluated their impact on survival. MATERIALS AND METHODS: This was an international observational study of patients who underwent preoperative chemotherapy and radical nephroureterectomy for high risk upper tract urothelial carcinoma between 2005 and 2017. Multiple imputation of chained equations was applied to account for missing values. Logistic regression analyses were performed to identify predictors of pathological response. Cox proportional hazard regression models were used to estimate recurrence-free survival, cancer specific survival and overall survival. RESULTS: A total of 267 patients met our inclusion criteria. Among included patients 82 (31%) received methotrexate, vinblastine, doxorubicin and cisplatin; 123 (46%) gemcitabine and cisplatin; 25 (9%) gemcitabine and carboplatin; and 32 (12%) other regimens. The overall rates of pathological complete response and pathological downstaging were 10.1% and 44.9%, respectively. On multivariable analysis the use of gemcitabine and cisplatin, and gemcitabine and carboplatin was not statistically different from methotrexate, vinblastine, doxorubicin and cisplatin in achieving pathological complete response and pathological downstaging, respectively. The number of administered cycles did not appear to have an effect on pathological responses. Pathological downstaging was the strongest prognostic factor for recurrence-free survival (HR 0.2, p <0.001), cancer specific survival (HR 0.19, p <0.001) and overall survival (HR 0.40, p <0.001). CONCLUSIONS: Pathological downstaging after preoperative chemotherapy is a robust prognostic factor at radical nephroureterectomy and is associated with improved survival outcomes. Although preoperative chemotherapy appears to be effective, well designed prospective studies are still needed.

    DOI: 10.1097/JU.0000000000000737

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  • Inflammatory bowel disease and prostate cancer risk: A systematic review. 査読 国際誌

    Anoud Haddad, Mohammed Qussay Al-Sabbagh, Hashim Al-Ani, Abdel Muez Siyam, Emad Aborajooh, Takehiro Iwata, Shoji Kimura, Shahrokh F Shariat, Mohammad Abufaraj

    Arab journal of urology   18 ( 4 )   207 - 212   2020年5月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    Objective: To evaluate the risk of prostate cancer (PCa) in patients with inflammatory bowel disease (IBD), focussing on ulcerative colitis (UC) and Crohn's disease (CD) separately. Methods: A systemic search was carried out using PubMed and Web of Science databases following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. We retrieved a total of 349 articles. All the articles were in the English language and investigated the incidence of PCa in patients with IBD. Results: Nine studies met our inclusion criteria, with a total of 205 037 men. Two studies reported an increase in the risk of PCa in men with IBD in general. Five other studies reported an increased risk of PCa in men with UC or with CD specifically. On the other hand, two studies reported a decreased risk of PCa in patients with UC and patients with IBD treated with aminosalicylates. Conclusions: While men with UC appear to have higher risk of developing PCa, data on patients with CD are inconclusive. Therefore, patients with UC may benefit from earlier PCa screening. Our findings confirm a complex interplay between IBD and PCa, including factors such as genetic predisposition, systemic inflammation and treatment effects. The modulatory effect of treatment strategies for IBD on the development and progression of PCa might be of clinical significance. Abbreviations: CD: Crohn's disease; CRP: C- reactive protein; FOLH1: folate hydrolase 1; GIT: gastrointestinal tract; IBD: inflammatory bowel disease; IL-6: interleukin 6; NOS: Newcastle-Ottawa Scale; PCa: prostate cancer; PRISMA: Preferred Reporting Items for Systematic Reviews and Meta-Analyses; PSMA: prostate-specific membrane antigen; UC: ulcerative colitis.

    DOI: 10.1080/2090598X.2020.1761674

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  • Diagnostic performance of multidetector computed tomographic (MDCTU) in upper tract urothelial carcinoma (UTUC): a systematic review and meta-analysis. 査読 国際誌

    Florian Janisch, Shahrokh F Shariat, Pascal Baltzer, Harun Fajkovic, Shoji Kimura, Takehiro Iwata, Philipp Korn, Lin Yang, Petr V Glybochko, Michael Rink, Mohammad Abufaraj

    World journal of urology   38 ( 5 )   1165 - 1175   2020年5月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    PURPOSE: To systematically review the literature evaluating the performance of MDCTU for the diagnosis of UTUC and meta-analyse available data. We also compared the diagnostic accuracy of MDCTU to other radiologic modalities. METHODS: This systematic review and meta-analysis was conducted according to the PRISMA statement. A systematic research using Pubmed, Scopus, Cochrane, and Web of Science libraries was performed on November 1st, 2018. We included all original articles investigating the performance of MDCTU for the diagnosis of UTUC using histopathology as the reference standard for true positives and an unsuspicious clinical follow-up of at least 1 year for true negatives. RESULTS: Overall, 13 studies comprising 1233 patients were eligible and included in this systematic review and meta-analysis. In patient-based analyses, the pooled sensitivity and specificity were 92% (CI 0.85-0.96) and 95% (CI 0.88-0.98), respectively. The reported sensitivity in the per-lesion analysis ranged between 91 and 97%. All studies reporting segment-based analysis demonstrated high diagnostic accuracy (> 90%). While one study reported higher accuracy of retrograde ureteropyelography than MDCTU (97% vs. 94%), another study demonstrated an inferior accuracy of intravenous pyelogram compared to MDCTU. Findings on the accuracy of diffusion-weighted magnetic resonance imaging compared to MDCTU were inconsistent. CONCLUSION: MDCTU has excellent diagnostic performance in detecting UTUC and ruling-out suspicious upper urinary tract lesions in per-patient and per-lesion-based analyses. We confirm the choice of MDCTU as the radiologic diagnostic modality of choice for work-up of suspicious upper urinary tract lesions providing valuable information in patient counseling, decision-making, and treatment planning.

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  • The prognostic value of the urokinase-plasminogen activator system (uPA) in bladder cancer patients treated with radical cystectomy (RC). 査読 国際誌

    Florian Janisch, David D'Andrea, Takehiro Iwata, Shoji Kimura, Mohammad Abufaraj, Dmitry Enikeev, Petr V Glybochko, Pierre I Karakiewicz, Peter Nyirady, Harun Fajkovic, Andrea Haitel, Veronika Seebacher, Michael Rink, Shahrokh F Shariat

    Urologic oncology   38 ( 5 )   423 - 432   2020年5月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    PURPOSE: Urokinase-plasminogen activator (uPA), its receptor (uPAR), and the plasmin-activator inhibitor type 1 (PAI-1) have been associated with oncologic outcomes in various malignancies and could help identify bladder cancer (BC) patients treated with radical cystectomy (RC) who are likely to benefit from intensification of therapy to prevent disease progression. Our aim was to assess the value of uPA, uPAR, and PAI-1 for prognosticating survival outcomes of patients treated with RC for BC. MATERIALS AND METHODS: Tumor specimens from 272 consecutive patients treated with RC for advanced BC were assessed with immunohistochemical staining for uPA, uPAR, and PAI-1. Overexpression was assessed by pathological image analysis. Kaplan-Meier estimates and multivariable Cox-regression were used to analyze survival. Harrell's C-index was used to assess for clinical impact of the uPA system. RESULTS: uPA, uPAR, and PAI-1 were overexpressed in 48.2%, 51.1%, and 52.2% of patients, respectively. uPA overexpression was associated with lymphovascular invasion (P = 0.034) and nodal status (P = 0.013); PAI-1 overexpression was associated with primary muscle-invasive BC (P = 0.015) and lymphovascular invasion (P = 0.024). uPA, uPAR, and the number of overexpressed markers were all 3 significantly associated with shorter overall recurrence-free-, distant recurrence-free-, and cancer-specific survival. In multivariable analyses, uPA overexpression remained associated with shorter recurrence-free survival (hazard ratio [HR] = 1.79; P = 0.036) in the entire cohort, in patients without lymph node metastasis (HR = 1.98; P = 0.018) and those with nonorgan-confined disease (HR = 1.98; P = 0.022). uPAR overexpression was associated with shorter recurrence-free survival in patients without lymph node metastasis (HR = 2.01; P = 0.021) and those with organ-confined disease (HR = 4.11; P = 0.037). CONCLUSION: Members of the uPA system are associated with features of biologically aggressive BC and oncologic outcomes. However, their value beyond currently available information remains limited.

    DOI: 10.1016/j.urolonc.2020.02.002

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  • 【腎盂・尿管癌の治療を考える】腎盂・尿管癌における腹腔鏡下腎尿管全摘除術の適応

    吉永 香澄, 荒木 元朗, 和田里 章悟, 丸山 雄樹, 光井 洋介, 窪田 理沙, 定平 卓也, 岩田 健宏, 西村 慎吾, 高本 篤, 和田 耕一郎, 佐古 智子, 枝村 康平, 小林 泰之, 渡部 昌実, 渡辺 豊彦, 那須 保友

    泌尿器外科   33 ( 5 )   455 - 461   2020年5月

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    記述言語:日本語   出版者・発行元:医学図書出版(株)  

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  • Impact of Gender on Chemotherapeutic Response and Oncologic Outcomes in Patients Treated With Radical Cystectomy and Perioperative Chemotherapy for Bladder Cancer: A Systematic Review and Meta-Analysis. 査読 国際誌

    Shoji Kimura, Takehiro Iwata, Mohammad Abufaraj, Florian Janisch, David D'Andrea, Marco Moschini, Baeth Al-Rawashdeh, Harun Fajkovic, Veronika Seebacher, Shin Egawa, Shahrokh F Shariat

    Clinical genitourinary cancer   18 ( 2 )   78 - 87   2020年4月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    Female patients with bladder cancer (BCa) have had more advanced disease than their male counterparts at diagnosis and have experienced worse oncologic outcomes. However, the effect of gender on the chemotherapeutic response and oncologic outcomes after radical cystectomy (RC) and perioperative chemotherapy remains to be elucidated. We performed a systematic literature search to identify eligible studies that had investigated the effect of gender on the chemotherapeutic response and oncologic outcomes after RC and perioperative chemotherapy. We identified 15 studies reported from 2008 to 2019. For the patients who had received neoadjuvant chemotherapy (NAC), female gender was not associated with a complete response (pooled odds ratio [OR], 0.94; 95% confidence interval [CI], 0.69-1.26) nor a complete or partial response (pooled OR, 0.96; 95% CI, 0.73-1.27). In addition, women experienced had less upstaging (pooled OR, 0.3; 95% CI, 0.14-0.68) at RC compared with their male counterparts. Moreover, female patients who had undergone RC and NAC were likely to have better disease recurrence and cancer-specific mortality rates than were the male patients (pooled hazard ratio [HR], 0.66 and 95% CI, 0.44-0.98; and pooled HR, 0.49 and 95% CI, 0.29-0.81, respectively). For the patients who had undergone adjuvant chemotherapy, female gender was not associated with overall mortality (pooled HR, 1.15; 95% CI, 0.7-1.89), disease recurrence (pooled HR, 0.95; 95% CI, 0.74-1.23), or cancer-specific mortality (pooled HR, 1.07; 95% CI, 0.81-1.43). Female patients with BCa seem to benefit more from NAC than do their male counterparts. This potential differential sensitivity of female BCa to cisplatin-based combination chemotherapy might help close the gender gap in BCa, suggesting that gender could be a biomarker to help select the best systemic therapy for patients with advanced BCa.

    DOI: 10.1016/j.clgc.2019.11.007

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  • 岡山大学病院における進行性尿路上皮癌に対するpembrolizumabの治療経験 査読

    富永 悠介, 高本 篤, 関戸 崇了, 和田里 章悟, 大岩 裕子, 窪田 理沙, 片山 聡, 岩田 健宏, 西村 慎吾, 佐古 智子, 和田 耕一郎, 枝村 康平, 小林 泰之, 荒木 元朗, 渡邉 豊彦, 那須 保友

    西日本泌尿器科   82 ( 1 )   106 - 110   2020年4月

  • Performance of [68Ga] Ga-PSMA 11 PET for detecting prostate cancer in the lymph nodes before salvage lymph node dissection: a systematic review and meta-analysis. 査読 国際誌

    Shoji Kimura, Mohammad Abufaraj, Florian Janisch, Takehiro Iwata, Mehdi Kardoust Parizi, Beat Foerster, Nicola Fossati, Alberto Briganti, Shin Egawa, Markus Hartenbach, Shahrokh F Shariat

    Prostate cancer and prostatic diseases   23 ( 1 )   1 - 10   2020年3月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    BACKGROUND: Salvage lymph node dissection (sLND) for nodal recurrence in prostate cancer (PCa) patients with biochemical recurrence (BCR) is still not recommended in current guidelines, because of the diagnostic inaccuracy of current conventional imaging. To assess the performance of [68Ga] Ga-prostate-specific membrane antigen conjugate 11 positron emission tomography (PSMA-PET) in detecting PCa lymph node metastasis using pathologic confirmation through sLND. METHODS: Literature search was conducted using the MEDLINE, SCOPUS, Web of Science, and Cochrane Library on November 11th, 2018 to identify the eligible studies. Studies were eligible if they investigated the diagnostic performance of PSMA-PET before sLND in PCa patients with BCR and reported the number of true positive, false positive, false negative, and true negative on a lesion-based and/or field-based analyses to compare with histopathologic findings in sLND specimens. RESULTS: Fourteen studies published between 2015 and 2018 comprising 462 patients were selected in this systematic review and meta-analysis. The positive predictive value of PSMA-PET before sLND on a patient-based analysis ranged between 0.70 and 0.93. The pooled sensitivity using lesion-based and field-based analyses were 0.84 (95%CI: 0.61-0.95) and 0.82 (95%CI: 0.72-0.89), respectively. The pooled specificity using lesion-based and field-based analyses were 0.97 (95%CI: 0.95-0.99) and 0.95 (95%CI: 0.70-0.99), respectively. The diagnostic odds ratio using lesion-based and field-based analyses were 189 (95%CI: 39-920) and 82 (95%CI: 8-832), respectively. CONCLUSIONS: PSMA-PET before sLND provided highly accurate performance with clinically relevant high positive and negative predictive values for detecting lymph node disease in patients with BCR after local treatment with curative intent for PCa. PSMA-PET can identify the patients who are likely to benefit from sLND and possibly direct to lesion or region-based dissection.

    DOI: 10.1038/s41391-019-0156-z

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  • Robotic Renal Autotransplantation: A Feasibility Study in a Porcine Model. 査読

    Risa Kubota, Motoo Araki, Koichiro Wada, Kasumi Kawamura, Yuki Maruyama, Yosuke Mitsui, Takuya Sadahira, Yuichi Ariyoshi, Takehiro Iwata, Shingo Nishimura, Atsushi Takamoto, Tomoko Sako, Kohei Edamura, Yasuyuki Kobayashi, Yuzuki Kano, Masashi Kitagawa, Katsuyuki Tanabe, Hitoshi Sugiyama, Jun Wada, Masami Watanabe, Toyohiko Watanabe, Yasutomo Nasu

    Acta medica Okayama   74 ( 1 )   53 - 58   2020年2月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    We investigated the feasibility of robotic renal autotransplantation (RAT) in a porcine model to reduce invasiveness of RAT. Five pigs underwent robotic RAT using the da Vinci® robotic system. A robotic left nephrectomy was performed in all cases. Robotic RAT was performed on the left side in all but one case. Four ports were used. In 3 cases, the kidney was taken out through the GelPort® and irrigated on ice with Ringer's solution. In 2 cases, a complete intracorporeal robotic RAT was performed. An end-to-side anastomosis was performed between the renal vein and the external iliac vein and between the renal artery and the external iliac artery. Ureteroneocystostomy was also performed in 2 cases. All cases were performed robotically without open conversion. The median (IQR) console time was 3.1 (0.7) h, and the operative time was 3.8 (1.1) h. The estimated blood loss was 30 (0) ml. The warm ischemia time was 4.0 (0.2) min, and the cold ischemia time was 97 (17) min. Intracorporeal transarterial hypothermic renal perfusion was feasible in the 2 complete intracorporeal robotic RAT cases by using a perfusion catheter through a laparoscopic port. Robotic RAT has the potential to be a new minimally invasive substitute for conventional open surgery.

    DOI: 10.18926/AMO/57953

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  • Preventive efficacy and safety of lactobacillus vaginal suppositories in women with recurrent cystitis: A phase 2 study 査読

    Sadahira T, Wada K, Ishii A, Maruyama Y, Iwata T, Araki M, Watanabe M, Watanabe T, Nasu Y

    Eur Urol Open Sci   19 ( 2 )   2036 - 2037   2020年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    DOI: 10.1016/S2666-1683(20)33968-9

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  • Impact of alcohol consumption on the risk of developing bladder cancer: a systematic review and meta-analysis. 査読 国際誌

    Mihai Dorin Vartolomei, Takehiro Iwata, Beat Roth, Shoji Kimura, Romain Mathieu, Matteo Ferro, Shahrokh F Shariat, Christian Seitz

    World journal of urology   37 ( 11 )   2313 - 2324   2019年11月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    BACKGROUND: Epidemiologic studies that investigated alcohol consumption in relation to the risk of bladder cancer (BCa) have demonstrated inconsistent results. We conducted a systematic review and meta-analysis of the literature to investigate the association of alcohol including different types of alcoholic beverages consumption with the risk of BCa. MATERIALS AND METHODS: A systematic search of Web of Science, Medline/PubMed and Cochrane library was performed in May 2018. Studies were considered eligible if they assessed the risk of BCa due to alcohol consumption (moderate or heavy dose) and different types of alcoholic beverages (moderate or heavy dose) in multivariable analysis in the general population (all genders, males or females) or compared with a control group of individuals without BCa. STUDY DESIGN: observational cohorts or case-control. RESULTS: Sixteen studies were included in this meta-analysis. Moderate and heavy alcohol consumption did not increase the risk of BCa in the entire population. Sub-group and sensitivity analyses revealed that heavy alcohol consumption increased significantly the risk of BCa in the Japanese population, RR 1.31 (95% CI 1.08-1.58, P < 0.01) in the multivariable analysis, and in males RR of 1.50 (95% CI 1.18-1.92, P < 0.01), with no significant statistical heterogeneity. Moreover, heavy consumption of spirits drinks increased the risk of BCa in males, RR 1.42 (95% CI 1.15-1.75, P < 0.01). CONCLUSION: In this meta-analysis, moderate and heavy alcohol consumption did not increase the risk of bladder cancer significantly. However, heavy consumption of alcohol might increase the risk of BCa in males and in some specific populations.

    DOI: 10.1007/s00345-019-02825-4

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  • The role of adjuvant radiotherapy after surgery for upper and lower urinary tract urothelial carcinoma: A systematic review. 査読 国際誌

    Takehiro Iwata, Shoji Kimura, Mohammad Abufaraj, Florian Janisch, Pierre I Karakiewicz, Veronika Seebacher, Morgan Rouprêt, Yasutomo Nasu, Shahrokh F Shariat

    Urologic oncology   37 ( 10 )   659 - 671   2019年10月

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    担当区分:筆頭著者   記述言語:英語   掲載種別:研究論文(学術雑誌)  

    OBJECTIVES: The role of adjuvant radiotherapy (ART) in patients with bladder cancer (BCa) and upper tract urothelial carcinoma (UTUC) is controversial. We systematically evaluated the oncologic efficacy of ART and its associated toxicity in patients treated with surgery and ART for BCa and UTUC. MATERIALS AND METHOD: We performed a literature search on December 2018 using MEDLINE, Web of Science, Cochrane databases and Scopus according to the Preferred Reporting Items for Systematic Review and Meta-analysis statement. Fourteen BCa studies and 14 UTUC studies were included in this systematic review. The data were too scarce and heterogeneous for meta-analytical analysis. RESULTS: The quality and quantity of the data on ART in BCa and UTUC patients are limited. The combination of ART and chemotherapy appears to be beneficial in patients with locally advanced BCa or UTUC. The early and late adverse effects of ART are decreasing reflecting the progress in radiation technology. CONCLUSIONS: According to the currently available literature, there is no clear benefit of ART after radical surgery in BCa and UTUC. Future efforts should focus on evaluating multimodal approach using ART with chemotherapy. Until that time comes, ART should be used carefully in patients with BCa and UTUC on a case-by-case basis.

    DOI: 10.1016/j.urolonc.2019.05.021

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  • Oncological safety of testosterone replacement therapy in prostate cancer survivors after definitive local therapy: A systematic literature review and meta-analysis. 査読 国際誌

    Mehdi Kardoust Parizi, Mohammad Abufaraj, Harun Fajkovic, Shoji Kimura, Takehiro Iwata, David D'Andrea, Pierre I Karakiewicz, Shahrokh F Shariat

    Urologic oncology   37 ( 10 )   637 - 646   2019年10月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    AIM: To evaluate the association between testosterone replacement therapy (TRT) in prostate cancer (CaP) patients who underwent definitive local therapy with curative intent with biochemical recurrence (BCR). MATERIALS AND METHODS: A literature search using PubMed, Scopus, Web of Science, and Cochrane Library was conducted on November 2018 to identify relevant studies according to the Preferred Reporting Items for Systematic Review and Meta Analysis guidelines. The pooled BCR rate in CaP men treated with TRT after definitive local therapy with curative intent was calculated using a random effects model. RESULTS: Twenty-one studies were eligible. The overall pooled BCR rate was 0.01 (95%CI 0.00-0.02) suggesting a lack of association between TRT and BCR; there was no heterogeneity among included studies (I2 = 24.34%, P = 0.15). In subgroup analyses, pooled BCR rates were 0.00 (95%CI 0.00-0.02) in patients treated with radical prostatectomy and 0.02 (95%CI 0.00-0.04) in patients treated with external beam radiation therapy, brachytherapy, cryotherapy, or high intensity focused ultrasound; there was no heterogeneity in the subgroup analyses (I2 = 19.88%, P = 0.18). CONCLUSIONS: In this systematic review and meta-analysis, we did not observe higher rate of BCR after TRT for nonmetastatic CaP patients after definitive local therapy. Based on these data, others and we have outlined a phase I/II trial assessing the safety and benefits of TRT in select men with secondary symptomatic hypogonadism who have no active disease after definitive local CaP therapy with curative intent.

    DOI: 10.1016/j.urolonc.2019.06.007

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  • Prognostic role of the urokinase plasminogen activator (uPA) system in patients with nonmuscle invasive bladder cancer. 査読 国際誌

    Takehiro Iwata, Shoji Kimura, Mohammad Abufaraj, Florian Janisch, Mehdi Kardoust Parizi, Andrea Haitel, Micheal Rink, Morgan Rouprêt, Harun Fajkovic, Veronica Seebacher, Peter Nyirady, Pierre I Karakiewicz, Dmitry Enikeev, Leonid M Rapoport, Yasutomo Nasu, Shahrokh F Shariat

    Urologic oncology   37 ( 10 )   774 - 783   2019年10月

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    担当区分:筆頭著者   記述言語:英語   掲載種別:研究論文(学術雑誌)  

    OBJECTIVES: To assess the role of the urokinase plasminogen activator (uPA) system as a prognostic biomarker in patients with nonmuscle invasive bladder cancer (NMIBC) treated with transurethral resection of the bladder (TURB) with or without adjuvant intravesical therapy. MATERIAL AND METHODS: We stained TURB tissue from 827 NMIBC patients with uPA, its receptor (uPAR) and its inhibitor (PAI-1). The status of these markers was categorized as normal vs. overexpressed using the cutoffs of 30% for uPA, 50% for uPAR, and 30% for PAI-1. Multivariable Cox regression analyses were performed to evaluate the prognostic value of these markers. RESULTS: uPA was overexpressed in 37.7% of patients, uPAR in 44.7% and PAI-1 in 44.6%. Overexpression of these markers was associated with high tumor grade. Within a median follow-up was 60 months (interquartile range: 22-109), uPA (hazard ratio [HR]: 1.40; P = 0.006), uPAR (HR: 1.70; P < 0.001), PAI-1 (HR: 1.35; P = 0.014), and the combination of all 3 markers (HR: 3.38; P < 0.001) were associated with recurrence-free survival (RFS); uPA (HR: 1.68; P = 0.035) and the combination of all 3 markers (HR: 8.79; P = 0.005) were associated with progression-free survival (PFS). The addition of the uPA system to a base model improved the discrimination by 1.3% for RFS and 2.1% for PFS. In subgroup analyses, uPA (HR: 2.19; P = 0.018) was associated with PFS in T1G3 patients and its addition to a base model improved the discrimination by 2.5%. uPA (HR: 1.44; P = 0.019), uPAR (HR: 1.54; P = 0.006), PAI-1 (HR: 1.46; P = 0.013) and the combination of all 3 markers (HR: 3.48; P < 0.001) were associated with RFS in TaG1-2 patients and their addition to a base model improved the discrimination by 2.1%. CONCLUSION: uPA, uPAR, and PAI-1 are overexpressed in one-third to half of patients with NMIBC. Their overexpression is an independent prognosticator of RFS and PFS which improved the predictive accuracy of current clinicopathological characteristics. Biomarkers that capture the biological and clinical behavior of individual tumors may help personalize clinical decision-making in patients with NMIBC.

    DOI: 10.1016/j.urolonc.2019.05.019

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  • Current Disease Management of Primary Urethral Carcinoma. 査読 国際誌

    Florian Janisch, Mohammad Abufaraj, Harun Fajkovic, Shoji Kimura, Takehiro Iwata, Peter Nyirady, Michael Rink, Shahrokh F Shariat

    European urology focus   5 ( 5 )   722 - 734   2019年9月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    CONTEXT: Primary urethral cancer (PUC) is a rare cancer entity. Owing to the low incidence of this malignancy, the main body of literature consists mainly of case reports, making evidence-based management recommendations difficult. OBJECTIVE: To review reported disease management strategies of PUC and their impact on oncological outcomes. EVIDENCE ACQUISITION: A systematic research was performed according to the Preferred Reporting Items for Systematic Review and Meta-analysis (PRISMA) statement using Medline, Scopus, and Web of Science, to find studies of the past 10yr including ≥20 patients, and investigating treatment strategies and their impact on outcomes of the three most frequent histologies: urothelial carcinoma, adenocarcinoma, and squamous cell carcinoma. EVIDENCE SYNTHESIS: In localized PUC, penis-sparing surgery can be performed in males, while in females, complete urethrectomy with surrounding tissue is advised to minimize recurrence due to positive margins. Radiotherapy (RT) has worse survival and recurrence rates, as well as more adverse effects, than surgery, limiting its use in genital-preserving therapy. Locally advanced PUC should be treated with multimodal therapy, as monotherapies result in inferior recurrence and survival rates. Extent of surgery is still undecided, favoring radical cyst(oprostat)ectomy with total urethrectomy (RCU). Lymph node involvement is a predictor of survival, highlighting the role of lymph node dissection for disease control and staging. RT can improve survival in combination with surgery and/or chemotherapy (CHT). Neoadjuvant platinum-based CHT can improve overall and recurrence-free survival. At recurrence, salvage therapy with surgery and/or CHT can improve survival. Superficial urothelial carcinoma of the prostatic urethra can be treated with transurethral resection. Stromal invasion often features concomitant bladder cancer with a poor prognosis and requires RCU with or without systemic preoperative CHT. CONCLUSIONS: PUC is a rare malignancy with an often poor natural course, requiring a stage- and gender-specific risk-based treatment strategy. The role of systematic perioperative CHT and the extent of surgery are becoming more important. PATIENT SUMMARY: In this review, we looked at the treatment options for primary urethral cancer. We found that while an organ-confined disease can be managed with local resection, growth beyond the organ border makes a combination of different treatment modalities, such as surgery and systematic chemotherapy, necessary to improve outcomes.

    DOI: 10.1016/j.euf.2019.07.001

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  • 岡山大学病院泌尿器科における腹腔鏡教育プログラムの有用性 腹腔鏡下副腎摘除術

    和田里 章悟, 小林 泰之, 定平 卓也, 岩田 健宏, 西村 慎吾, 高本 篤, 佐古 智子, 枝村 康平, 和田 耕一郎, 荒木 元朗, 渡邉 豊彦, 那須 保友

    Japanese Journal of Endourology   32 ( 2 )   225 - 229   2019年9月

  • Comparison of perioperative complications and health-related quality of life between robot-assisted and open radical cystectomy: A systematic review and meta-analysis. 査読 国際誌

    Shoji Kimura, Takehiro Iwata, Beat Foerster, Nicola Fossati, Alberto Briganti, Yasutomo Nasu, Shin Egawa, Mohammad Abufaraj, Shahrokh F Shariat

    International journal of urology : official journal of the Japanese Urological Association   26 ( 8 )   760 - 774   2019年8月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    To compare postoperative complications and health-related quality of life of patients undergoing robot-assisted radical cystectomy with those of patients undergoing open radical cystectomy. A systematic search was carried out according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement. A pooled meta-analysis was carried out to assess the differences between robot-assisted radical cystectomy and open radical cystectomy according to randomized and non-randomized comparative studies, respectively. We identified six randomized comparative studies and 31 non-randomized comparative studies. Most robot-assisted radical cystectomy patients were treated with extracorporeal urinary diversion. Robot-assisted radical cystectomy was associated with longer operative times, and lower blood loss and transfusion rates compared with open radical cystectomy in both randomized comparative studies and non-randomized comparative studies. There was no significant difference between robot-assisted radical cystectomy and open radical cystectomy in the rate of patients with any or major complications within 90 days both in randomized comparative studies and non-randomized comparative studies. Non-randomized comparative studies reported a lower rate of complications at 30 days, mortality at 90 days and length of stay for patients treated with robot-assisted radical cystectomy, which were not confirmed in randomized comparative studies. Additionally, there were no differences in postoperative quality of life score assessment at 3 and 6 months between robot-assisted radical cystectomy and open radical cystectomy. Robot-assisted radical cystectomy is associated with less blood loss and lower transfusion rates. There is no difference in complications, length of stay, mortality, and quality of life between robot-assisted radical cystectomy and open radical cystectomy. Data from non-randomized comparative studies favor perioperative outcomes in robot-assisted radical cystectomy patients, the failure to confirm in randomized comparative studies, likely due to bias in study design and reporting. Further randomized comparative studies comparing postoperative complications and quality of life between robot-assisted radical cystectomy with intracorporeal urinary diversion and open radical cystectomy are required to assess potential differences between these two surgical approaches.

    DOI: 10.1111/iju.14005

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  • Oncologic outcomes after robot-assisted versus open radical cystectomy: a systematic review and meta-analysis. 査読 国際誌

    Takehiro Iwata, Shoji Kimura, Beat Foerster, Nicola Fossati, Alberto Briganti, Pierre I Karakiewicz, Kilian M Gust, Shin Egawa, Yasutomo Nasu, Mohammad Abufaraj, Shahrokh F Shariat

    World journal of urology   37 ( 8 )   1557 - 1570   2019年8月

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    担当区分:筆頭著者   記述言語:英語   掲載種別:研究論文(学術雑誌)  

    PURPOSE: The efficacy of RARC in oncologic outcomes compared ORC is controversial. We assess potential differences in oncologic outcomes between robot-assisted radical cystectomy (RARC) and open radical cystectomy (ORC). METHODS: We performed the literature search systematically according to the Preferred Reporting Items for Systematic Review and Meta-analysis statement. A pooled meta-analysis was performed to assess the difference in oncologic outcomes between RARC and ORC, separately in randomized controlled trials (RCTs) and non-randomized studies (NRCTs). RESULTS: Five RCTs and 28 NRCTs were included in this systematic review and meta-analysis. There was no difference in the rate of overall positive surgical margin (PSM) in RCTs, while NRCTs showed a lower rate for RARC. There was no difference in the soft tissue PSM rate between RARC and ORC in both RCTs and NRCTs. There was no difference in the lymph node yield by standard and extended lymph node dissection between RARC and ORC in both RCTs and NRCTs. There was no significant difference in survival outcomes between RARC and ORC in both RCTs and NRCTs. CONCLUSIONS: Based on the current evidence, there is no difference in the rate of PSMs, lymph node yield, recurrence rate and location as well as short-term survival outcomes between RARC and ORC in RCTs. In NRCTs, only PSM rates were better for RARC compared to ORC, but this was likely due to selection and reporting bias which are inherent to retrospective study designs.

    DOI: 10.1007/s00345-019-02708-8

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  • Perioperative blood transfusion affects oncologic outcomes after nephrectomy for renal cell carcinoma: A systematic review and meta-analysis. 査読 国際誌

    Takehiro Iwata, Shoji Kimura, Beat Foerster, Mohammad Abufaraj, Pierre I Karakiewicz, Felix Preisser, Yasutomo Nasu, Shahrokh F Shariat

    Urologic oncology   37 ( 4 )   273 - 281   2019年4月

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    担当区分:筆頭著者   記述言語:英語   掲載種別:研究論文(学術雑誌)  

    AIM: To investigate the association of perioperative blood transfusion (PBT) with oncologic outcomes in patients with renal cell carcinoma (RCC), we conducted a systematic review and meta-analysis of the literature to clarify the long-term oncologic effect of PBT in patients undergoing nephrectomy for RCC. MATERIALS AND METHODS: We searched the MEDLINE, Web of Science, Cochrane Library and Scopus on 15th April 2018 to identify studies that compared patients who received PBT undergoing radical or partial nephrectomy for RCC to patients who did not with the aim of evaluating its impact on overall mortality (OM), cancer-specific mortality (CSM) and disease recurrence using multivariable cox regression analysis. RESULTS: A total of 19,681 patients in 7 studies matched the selection criteria for the systematic review and meta-analysis. All 7 studies were retrospective design and published between 1994 and 2018. Our study included low quality of eligible studies due to their retrospective design and showed a significant heterogeneity. PBT was associated with OM (pooled hazard ratio [HR], 1.49, 1.24-1.78), CSM (pooled HR, 1.46, 1.20-1.77), and disease recurrence (pooled HR, 1.80, 1.03-3.12). In a subgroup analysis of 3,664 patients with nonmetastatic RCC, PBT was remained associated with OM (pooled HR, 1.91; 1.06-3.41), but not anymore with CSM (pooled HR, 1.92, 0.94-3.91) or disease recurrence (pooled HR, 2.18, 0.86-5.55). CONCLUSIONS: PBT in patients undergoing nephrectomy for RCC is associated with worse overall survival. While PBT may be reflective of the underlying aggressiveness of the disease, it could be that its detrimental effect on outcomes is caused by its negative effect on the host's resilience.

    DOI: 10.1016/j.urolonc.2019.01.018

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  • Focal Neuroendocrine Differentiation of Conventional Prostate Adenocarcinoma as a Prognostic Factor after Radical Prostatectomy: A Systematic Review and Meta-Analysis. 査読 国際誌

    Mehdi Kardoust Parizi, Takehiro Iwata, Shoji Kimura, Florian Janisch, Mohammad Abufaraj, Pierre I Karakiewicz, Dmitry Enikeev, Leonid M Rapoport, Georg Hutterer, Shahrokh F Shariat

    International journal of molecular sciences   20 ( 6 )   2019年3月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    The biologic and prognostic value of focal neuroendocrine differentiation (NED) in conventional prostate adenocarcinoma (PC) patients who undergo radical prostatectomy (RP) remains controversial. In this systematic review and meta-analysis, we assessed the association of focal NED in conventional PC with oncological outcomes after RP. A literature search using PubMed, Scopus, Web of Science, and Cochrane Library was conducted on December 2018 to find relevant studies according to the Preferred Reporting Items for Systematic Review and Meta-Analysis (PRISMA) guidelines. We used a fixed-effect model to analyze the impact of focal NED in RP specimen on progression-free survival defined by biochemical recurrence (BCR). A total of 16 studies with the outcomes of disease progression and survival were eligible. No patient in these studies received androgen deprivation therapy prior to RP. Eleven studies found no significant correlation between focal NED and outcomes of interest, while five studies reported a significant association of focal NED assessed by immunohistochemical chromogranin A or serotonin staining with BCR or survival. Focal NED was associated with higher BCR rates after RP with a pooled HR of 1.39 (95% CI 1.07‒1.81) in five studies. No heterogeneity was reported in this analysis (I² = 21.7%, p = 0.276). In conclusion, focal NED in conventional PC is associated with worse prognosis after RP. Its presence should be reported in pathologic reports and its true clinical impact should be assessed in well-designed prospective controlled studies.

    DOI: 10.3390/ijms20061374

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  • Prognostic value of modified Glasgow Prognostic Score in non-muscle-invasive bladder cancer. 査読 国際誌

    Shoji Kimura, David D' Andrea, Francesco Soria, Beat Foerster, Mohammad Abufaraj, Mihai D Vartolomei, Takehiro Iwata, Pierre I Karakiewicz, Michael Rink, Kilian M Gust, Shin Egawa, Shahrokh F Shariat

    Urologic oncology   37 ( 3 )   179.e19-179.e28   2019年3月

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    記述言語:英語   掲載種別:研究論文(学術雑誌)  

    PURPOSE: To investigate the prognostic value of preoperative modified Glasgow Prognostic Score (mGPS) in patients with non-muscle-invasive bladder cancer (NMIBC) treated with transurethral resection of bladder with or without intravesical therapy. MATERIAL AND METHODS: We retrospectively reviewed our medical records to identify 1,096 consecutive patients with NMIBC treated with transurethral resection of bladder. The mGPS of each patient was calculated on the basis of preoperative serum C-reactive protein and albumin. Univariable and multivariable Cox regression analyses were performed to investigate the association of mGPS with recurrence-free survival (RFS) and progression-free survival (PFS). RESULTS: The mGPS of 0, 1, and 2 was observed in 764 (69.7%), 299 (27.3%), and 33 (3.0%) patients, respectively. On univariable analysis, mGPS 2 was associated with worse RFS (Hazard Ratio [HR]: 1.60, 95%; CI: 1.01-2.54). However, on multivariable analyses, which adjusted for the effects of established clinicopathologic features, mGPS 2 did not maintain its independent association with RFS (HR: 1.41, 95% CI: 0.88-2.26). On multivariable analysis, mGPS 1 and 2 were both independently associated with worse PFS compared to mGPS 0 (HR: 2.06, 95% CI: 1.37-3.12 and HR: 3.31, 95% CI: 1.40-7.87, respectively). The inclusion of mGPS improved the discrimination of a standard prognostic model for PFS from 71.6% to 73.8%. In subgroup analyses, mGPS 1 was associated with PFS (HR 2.09, 95% CI: 1.24-3.52) on multivariable analysis in patients with the European Association of Urology high-risk group. Additionally, in patients treated with bacillus Calmette-Guérin, mGPS 2 was associated with disease PFS (HR10.1, 95% CI: 2.61-38.8). CONCLUSIONS: The mGPS independently predicts PFS in patients with NMIBC. Inclusion of mGPS in prognostic models might help identify patients who are more likely to fail standard therapy and experience disease progression and, therefore, may benefit from intensified therapy such as radical cystectomy or inclusion in clinical trials of novel immunotherapeutics.

    DOI: 10.1016/j.urolonc.2018.11.005

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  • Efficacy and safety of 3 day versus 7 day cefditoren pivoxil regimens for acute uncomplicated cystitis: Multicentre, randomized, open-label trial 査読

    Takuya Sadahira, Okayama Urological Research Group (OURG), Koichiro Wada, Motoo Araki, Ayano Ishii, Atsushi Takamoto, Yasuyuki Kobayashi, Masami Watanabe, Toyohiko Watanabe, Yasutomo Nasu, Hiromi Kumon, Teruaki Akaeda, Nobuyuki Akazawa, Naoki Akebi, Daiji Araki, Tohru Araki, Ryoji Arata, Yuichi Ariyoshi, Eiichi Ando, Nobuyoshi Ando, Kazushi Ishii, Tsutomu Ishikawa, Noritaka Ishito, Takaharu Ichikawa, Takaaki Inoue, Miyabi Inoue, Yosuke Inoue, Shin Irie, Takehiro Iwata, Tatsuya Uesugi, Shinya Uehara, Katsutoshi Uematsu, Satoshi Uno, Kohei Edamura, Shin Ebara, Yuko Oiwa, Tadashi Oeda, Teruhisa Ohashi, Yozo Ohashi, Hideo Ozawa, Junzo Ochi, Noriaki Ono, Seiji Kai, Haruki Kaku, Satoshi Katayama, Yasuhiro Katayama, Tetuzo Kaneshige, Keiichiro Kawauchi, Masashi Kawaguchi, Tatsushi Kawada, Taiki Kanbara, Mikio Kishi, Ryo Kishimoto, Nobuyuki Kusaka, Norihiro Kusumi, Kimito Kunitomi, Risa Kubota, Hiroaki Kurahashi, Hironori Kojima, Tomoko Kobayashi, Makoto Kobuke, Katsuyoshi Kondo, Takashi Saika, Kazuma Sakaeda, Koji Sakuramoto, Shinichi Sako, Tomoko Sako, Taketo Sasaoka, Katsumi Sasaki, Yoshimasa Jo, Morito Sugimoto, Yuko Seno, Akira Takao, Kosuke Takamura, Kousuke Takamura, Hitoshi Takamoto, Katsuji Takeda, Tadasu Takenaka, Daisuke Tanaka, Ryuta Tanimoto, Masaya Tsugawa, Tomoyasu Tsushima, Hiromu Tsuboi, Syunji Tojo, Kenji Tokinaga, Yusuke Tominaga, Keisuke Doi, Atsushi Nagai, Hirochika Nakajima, Tetsuya Nakada, Hirokazu Nakatsuka, Aya Nakamura, Yasuki Nakayama, Yoshitsugu Nasu, Daisuke Nishikawa, Jun Nishiguchi, Yoshio Nishitani, Shingo Nishimura, Motoichi Nishimura, Yasuhiro Nishiyama, Hajime Nibuno, Kunihiro Nozaki, Hiroyuki Nose, Gaku Noda, Hideaki Hashimoto, Kazuhiro Hata, Toshihide Hayashi, Nobuki Hayashi, Syunji Hayata, Ryoei Hara, Takeshi Hirata, Tomohiro Fujii, Kei Fujio, Ryuji Fujita, Kensuke Bekku, Takanori Maehara, Yoshio Maki, Yuko Matsumoto, Daisuke Manabe, Yusuke Mayumi, Yuki Maruyama, Yosuke Mitsui, Sadayuki Miyaji, Syuhei Munemasa, Wataru Murao, Takanori Murakami, Tadashi Murata, Akihiro Mori, Akira Morita, Koichi Monden, Tomoya Yamasaki, Masahiro Yamashita, Daiduke Yamada, Toyoko Yamato, Toru Yamane, Tomoaki Yamanoi, Yasuo Yamamoto, Kazuaki Yukari, Teruhiko Yokoyama, Takashi Yoshioka, Yuichi Watanabe

    Journal of Antimicrobial Chemotherapy   72 ( 2 )   529 - 534   2017年

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    記述言語:英語   掲載種別:研究論文(学術雑誌)   出版者・発行元:Oxford University Press  

    DOI: 10.1093/jac/dkw424

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  • Feasibility of robot-assisted radical prostatectomy in elderly patients: Comparative analysis of the peri-surgical/oncological outcomes with younger patients.

    Takehiro Iwata, Takashi Saika, Kohei Edamura

    JOURNAL OF CLINICAL ONCOLOGY   34 ( 2 )   2016年1月

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  • 腎腫瘍に対するロボット支援腹腔鏡下腎部分切除術の初期経験

    枝村 康平, 中島 宏親, 林 信希, 山野井 友昭, 岩田 健宏, 河内 啓一郎, 弓狩 一晃, 小泉 文人, 雑賀 隆史

    広島市立広島市民病院医誌   31 ( 1 )   101 - 104   2015年3月

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    記述言語:日本語   出版者・発行元:広島市立広島市民病院  

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MISC

  • 泌尿器科ロボット手術のトラブル,その原因と対処

    小林泰之, 枝村康平, 小林知子, 別宮謙介, 西村慎吾, 岩田健宏, 片山聡, 荒木元朗

    日本ロボット外科学会学術集会プログラム・抄録集   16th   2024年

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  • 腎移植術における血管吻合 ロボット手術もふまえて

    荒木元朗, 西村慎吾, 吉永香澄, 窪田理沙, 関戸崇了, 丸山雄樹, 山野井友昭, 富永悠介, 片山聡, 岩田健宏, 別宮謙介, 枝村康平, 小林知子, 小林泰之

    日本血管外科学会雑誌(Web)   33 ( Supplement )   2024年

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  • 前立腺生検関連感染症の予防—The prevention strategies of prostate biopsy-related infection

    定平 卓也, 丸山 雄樹, 岩田 健宏, 渡部 智文, 関戸 崇了, 堀井 聡, 長尾 賢太郎, 山野井 友昭, 富永 悠介, 片山 聡, 西村 慎吾, 別宮 謙介, 枝村 康平, 小林 知子, 小林 泰之, 荒木 元朗

    泌尿器科 = Urology / 泌尿器科編集委員会 編   16 ( 5 )   583 - 589   2022年11月

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    記述言語:日本語  

    CiNii Books

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  • 岡山大学病院泌尿器科における腹腔鏡教育プログラムの有用性 腹腔鏡下副腎摘除術

    和田里 章悟, 小林 泰之, 定平 卓也, 岩田 健宏, 西村 慎吾, 高本 篤, 佐古 智子, 枝村 康平, 和田 耕一郎, 荒木 元朗, 渡邉 豊彦, 那須 保友

    Japanese Journal of Endourology   32 ( 2 )   225 - 229   2019年9月

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    記述言語:日本語   出版者・発行元:(一社)日本泌尿器内視鏡学会  

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  • 岡山大学病院泌尿器科における腹腔鏡教育プログラムの有用性~腹腔鏡下副腎摘除術~

    和田里章悟, 小林泰之, 定平卓也, 岩田健宏, 西村慎吾, 高本篤, 佐古智子, 枝村康平, 和田耕一郎, 荒木元朗, 渡邉豊彦, 那須保友

    Japanese Journal of Endourology (Web)   32 ( 2 )   2019年

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  • 自然消失した膀胱炎症性偽腫瘍の1例

    丸山 雄樹, 高本 篤, 光井 洋介, 定平 卓也, 岩田 健宏, 西村 慎吾, 甲斐 誠二, 和田 耕一朗, 谷本 竜太, 杉本 盛人, 小林 泰之, 荒木 元朗, 渡辺 昌実, 渡邉 豊彦, 那須 保友

    西日本泌尿器科   80 ( 9 )   465 - 468   2018年9月

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    記述言語:日本語   出版者・発行元:西日本泌尿器科学会  

    J-GLOBAL

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共同研究・競争的資金等の研究

  • 膣内細菌叢から紐解く反復性膀胱炎の病態解明

    研究課題/領域番号:24K12438  2024年04月 - 2027年03月

    日本学術振興会  科学研究費助成事業  基盤研究(C)

    岩田 健宏, 定平 卓也

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    配分額:4290000円 ( 直接経費:3300000円 、 間接経費:990000円 )

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  • ウェアラブルデバイスと体組成計を用いた、女性骨盤臓器脱患者のフレイル合併頻度調査

    研究課題/領域番号:23K10425  2023年04月 - 2027年03月

    日本学術振興会  科学研究費助成事業  基盤研究(C)

    小林 知子, 濱田 全紀, 石井 亜矢乃, 岩田 健宏, 定平 卓也, 堅山 佳美

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    配分額:4030000円 ( 直接経費:3100000円 、 間接経費:930000円 )

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  • 腸内細菌叢の改善による反復性膀胱炎の新たな予防法と治療法の開発

    研究課題/領域番号:22K09473  2022年04月 - 2026年03月

    日本学術振興会  科学研究費助成事業  基盤研究(C)

    石井 亜矢乃, 岩田 健宏, 村上 圭史, 狩山 玲子

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    配分額:4160000円 ( 直接経費:3200000円 、 間接経費:960000円 )

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  • 乳酸菌バイオサーファクタントを用いた反復性/難治性膀胱炎の予防的治療の新戦略

    研究課題/領域番号:20K18117  2020年04月 - 2024年03月

    日本学術振興会  科学研究費助成事業 若手研究  若手研究

    岩田 健宏

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    配分額:3900000円 ( 直接経費:3000000円 、 間接経費:900000円 )

    2016年の伊勢志摩サミットでは、薬剤耐性微生物が世界経済に深刻な影響を与えている可能性があると認識され、各国が協調して取り組むことがコミットされた。それに先駆けて日本政府からは薬剤耐性アクションプランが発表され、疾患の予防や抗菌薬の適正使用がますます重要になっている。膀胱炎は一般的な感染性疾患であり、罹患後一年以内にその3分の1が再発を経験すると報告され、繰り返し抗菌薬治療することで病原菌の多剤耐性化のため難治性となる。反復性/難治性膀胱炎の病態として、乳酸菌を中心とした膣の常在菌によるバリアが関与しているといわれており、特に閉経後の女性や性的アクティビティが高い女性はバリアの喪失や慢性炎症による腸内細菌の膣への定着、バイオフィルムの形成によって、膣内の正常細菌叢やその代謝物を含む環境(マイクロバイオーム)が破綻し、膣が腸内細菌のリザーバーとなって多剤耐性菌を供給することが原因とされている。このような問題への一つの解決策として、病原性細菌の病原因子の産生のみを特異的に抑制するクオラムセンシング(Quorum Sensing: QS)阻害剤の開発が、今世紀における感染症治療のブレイクスルーとして世界的に注目されている。我々はこれまでの基礎/臨床研究において、膣に常在する乳酸菌に注目し、それが産生するバイオサーファクタントがQS阻害剤として機能することを見出している。また、本年度は抽出した蛋白を用いて、バイオフィルム形成阻害効果を確認した。反復性/難治性膀胱炎に対するクオラムセンシング阻害剤の臨床応用に向けての橋渡し研究として、先進的リアルタイムイメージング法による実験モデル系と分子生物学的手法を駆使して、新規QS阻害剤の作用機序解明を目指す。さらに、次世代シーケンサーを用いて、QS阻害剤使用前後の臨床検体を多元的かつ網羅的に解析し、QS阻害剤の選択圧の有無を確認する。

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担当授業科目

  • 泌尿器科学(基本臨床実習) (2025年度) 特別  - その他

  • 腎泌尿器系(臓器・系別統合講義) (2025年度) 特別  - その他

  • 選択制臨床実習(泌尿器科学) (2025年度) 特別  - その他

  • 泌尿器科学(基本臨床実習) (2024年度) 特別  - その他

  • 腎泌尿器系(臓器・系別統合講義) (2024年度) 特別  - その他

  • 泌尿器科学(基本臨床実習) (2023年度) 特別  - その他

  • 腎泌尿器系(臓器・系別統合講義) (2023年度) 特別  - その他

  • 泌尿器科学(基本臨床実習) (2022年度) 特別  - その他

  • 腎泌尿器系(臓器・系別統合講義) (2022年度) 特別  - その他

  • 泌尿器科学(基本臨床実習) (2021年度) 特別  - その他

  • 腎泌尿器系(臓器・系別統合講義) (2021年度) 特別  - その他

  • 泌尿器科学(基本臨床実習) (2020年度) 特別  - その他

  • 腎泌尿器系(臓器・系別統合講義) (2020年度) 特別  - その他

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