Faculty Profiles - KASAHARA Shingo

Papers - KASAHARA Shingo

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新専門医制度の開始により見えてきたその現状と課題多医療圏にまたがる広域外科専門研修プログラム運営の現状と課題

黒田新士, 吉田龍一, 池田宏国, 岡崎幹生, 大澤晋, 小谷恭弘, 山根正修, 岸本浩行, 野田卓男, 笠原真悟, 豊岡伸一, 土井原博義, 藤原俊義

日本外科学会雑誌 120 ( 5 ) 601 - 603 2019.9

高寛, 大澤晋, 藤井泰宏, 逢坂大樹, 西堀正洋, 笠原真悟

体外循環技術 46 ( 3 ) 352 - 352 2019.9

Clinical outcomes after the endovascular treatments of pulmonary vein stenosis in patients with congenital heart disease. International journal

Yoshihiko Kurita, Kenji Baba, Maiko Kondo, Takahiro Eitoku, Shingo Kasahara, Tatsuo Iwasaki, Shinichi Ohtsuki, Hirokazu Tsukahara

Cardiology in the young 29 ( 8 ) 1057 - 1065 2019.8

Language：English Publishing type：Research paper (scientific journal)

BACKGROUND: Pulmonary vein stenosis (PVS) is a condition with challenging treatment and leads to severe cardiac failure and pulmonary hypertension. Despite aggressive surgical or catheter-based intervention, the prognosis of PVS is unsatisfactory. This study aimed to assess the prognosis and to establish appropriate treatment strategies. METHODS: We retrospectively reviewed endovascular treatments for PVS (2001-2017) from the clinical database at the Okayama University Hospital. RESULTS: A total of 24 patients underwent PVS associated with total anomalous pulmonary venous connection and 7 patients underwent isolated congenital PVS. In total, 53 stenotic pulmonary veins were subjected to endovascular treatments; 40 of them were stented by hybrid (29) and percutaneous procedures (11) (bare-metal stent, n = 34; drug-eluting stent, n = 9). Stent size of hybrid stenting was larger than percutaneous stenting. Median follow-up duration from the onset of PVS was 24 months (4-134 months). Survival rate was 71 and 49% at 1 and 5 years, respectively. There was no statistically significant difference between stent placement and survival; however, patients who underwent bare-metal stent implantation had statistically better survival than those who underwent drug-eluting stent implantation or balloon angioplasty. Early onset of stenosis, timing of stenting, and small vessel diameter of pulmonary vein before stenting were considered as risk factors for in-stent restenosis. Freedom from re-intervention was 50 and 26% at 1 and 2 years. CONCLUSIONS: To improve survival and stent patency, implantation of large stent is important. However, re-intervention after stenting is also significant to obtain good outcome.

DOI： 10.1017/S1047951119001495

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Prognosis after lead extraction in patients with cardiac implantable electronic devices infection: Comparison of lead-related infective endocarditis with pocket infection in a Japanese single-center experience.

Nobuhiro Nishii, Yoshimasa Morimoto, Akihito Miyoshi, Saori Tsukuda, Masakazu Miyamoto, Satoshi Kawada, Koji Nakagawa, Atsuyuki Watanabe, Kazufumi Nakamura, Hiroshi Morita, Hiroshi Morimatsu, Nobuchika Kusano, Shingo Kasahara, Morio Shoda, Hiroshi Ito

Journal of arrhythmia 35 ( 4 ) 654 - 663 2019.8

Language：English Publishing type：Research paper (scientific journal)

Background: The increase in the use of cardiac implantable electronic devices (CIEDs) has been associated with an increase in CIED-related infections. Transvenous lead extraction is safe and effective for patients with CIED-related infections; however, the mortality rate in these patients is high. The prognosis after transvenous lead extraction in Japanese patients, especially those with lead-related infective endocarditis, has not been evaluated. Then, the purpose of this study is to clarify the prognosis after transvenous lead extraction in Japanese patients with CIED-related infections at a single Japanese center. Methods: A total of 107 patients who underwent transvenous lead extraction were retrospectively reviewed. The patients were divided into a lead-related infective endocarditis group (n = 32) and a pocket infection group (n = 75). Procedure success rate and prognosis after lead extraction were evaluated between the two groups. Results: Procedure success rate was not significantly different between the groups. There were no deaths associated with the procedure or with infection. The survival rate was not significantly different at 1 year or at a median of 816 days (lead-related infective endocarditis vs pocket infection; 93.7% vs 94.7%, P = 1.000; 78.1% vs 81.3%, P = 0.791) Time to reimplantation and duration of hospital stay and antibiotics therapy were significantly longer for patients with lead-related infective endocarditis. Conclusion: In this study, the prognosis for patients with lead-related infective endocarditis after transvenous lead extraction was favorable. Thus, extraction should be strongly recommended, even if the general condition of the patient is poor.

DOI： 10.1002/joa3.12164

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Lung transplantation via cardiopulmonary bypass: excellent survival outcomes from extended criteria donors.

Hirosh Taka, Kentaroh Miyoshi, Takeshi Kurosaki, Takuma Douguchi, Hideshi Itoh, Seiichiro Sugimoto, Masaomi Yamane, Motomu Kobayashi, Shingo Kasahara, Takahiro Oto

General thoracic and cardiovascular surgery 67 ( 7 ) 624 - 632 2019.7

Language：English Publishing type：Research paper (scientific journal)

OBJECTIVES: The role of intraoperative cardiopulmonary bypass (CPB) in lung transplant (LTx) surgery is controversial. CPB enables slow pulmonary reperfusion and initial ventilation with low oxygen concentrations, both theoretically protective of transplanted lungs. In this study, we explored clinical outcomes following extended criteria donor LTx surgery implementing a thoroughly protective allograft reperfusion strategy using CPB. METHODS: Thirty-nine consecutive adult patients who underwent bilateral LTx with elective CPB and protective allograft reperfusion were reviewed. Bilaterally implanted lungs were reperfused simultaneously, via slow CPB flow reduction and initial ventilation with 21% oxygen and nitric oxide, followed by a brief modified ultrafiltration. During weaning from CPB, mean pulmonary arterial pressure was strictly maintained at 10-15 mmHg by controlling CPB and pulmonary flow. The clinical outcomes in 23 patients who received lungs from extended criteria donors (ECD group) were elucidated and compared to 16 patients undergoing LTx from standard criteria donors (SCD group). RESULTS: No life-threatening deterioration was observed to graft functionality during the first 72 h after LTx in the ECD group; however, only one patient required post-transplant extracorporeal membrane oxygenation. In three of 23 ECD LTx patients (12%), surgical revision for bleeding was required. Survival outcomes for the ECD group were favorable, with 100% survival at 6-months, 87.0% at 1-year, and 80.7% at 5-years. Outcomes in the ECD group were comparable to those in the SCD group. CONCLUSIONS: Despite a certain extent of risk associated with full-dose heparinization, use of CPB does not undermine survival outcomes after ECD LTx surgery if protective allograft reperfusion is securely performed.

DOI： 10.1007/s11748-019-01067-w

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A new approach to prevent critical cardiac accidents in athletes by real-time electrocardiographic tele-monitoring system: Initial trial in full marathon.

Daiki Ousaka, Noriko Sakano, Mizuki Morita, Takayuki Shuku, Kazuo Sanou, Shingo Kasahara, Susumu Oozawa

Journal of cardiology cases 20 ( 1 ) 35 - 38 2019.7

Language：English

The majority of marathon deaths are caused by sudden cardiac arrest (SCA), which occur in approximately 1 in 57,000 runners. Such deaths are more common among older males and usually occur in the last 4 miles of the racecourse. Although prompt resuscitation, including early use of an automated external defibrillator (AED), improves survival, the deployment of enough trained medical staff and AEDs is difficult due to increased cost. Moreover, most victims of exercise-related SCA have no premonitory symptoms. Therefore, we tried to use a novel approach to prevent sudden cardiac deaths (SCD) related to SCA using real-time electrocardiographic tele-monitoring system, as an initial trial to assess operative possibility in a full marathon. As a result, 3 out of 5 runners had reasonable measurement results and sufficient tele-monitoring without complications related to this trial was possible. However, many investigations and improvements, such as improving cost-effectiveness, reducing noise, and automating the monitoring system, are needed for practical application of these devices for athletes. As a next step, we would establish a novel strategy to reduce SCDs in athletes using next-generation devices, which include an alarm system associated with early application of AED. <Learning objectives: Sudden cardiac arrest (SCA) is a major problem in sports cardiology. Here we investigated a novel approach using a real-time tele-monitoring system of electrocardiogram (ECG) to prevent sudden cardiac deaths by making use of an advanced alarm system which responds to SCA risk. Three out of five cases we monitored showed reasonable measurement of ECG with centralized observation in full marathon. This is the first report of this method, which may lead to the effective application of automated external defibrillator in athletes.>.

DOI： 10.1016/j.jccase.2019.03.008

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Congenital left ventricular aneurysm diagnosed with atrial septal defect. International journal

Yasuyuki Kobayashi, Yasuhiro Kotani, Yosuke Kuroko, Sadahiko Arai, Shingo Kasahara

Asian cardiovascular & thoracic annals 27 ( 5 ) 404 - 406 2019.6

Exogenous Vasohibin-2 Exacerbates Angiotensin II-Induced Ascending Aortic Dilation in Mice.

Michihiro Okuyama, Haruhito A Uchida, Yoshiko Hada, Yuki Kakio, Nozomu Otaka, Ryoko Umebayashi, Katsuyuki Tanabe, Yasuhiro Fujii, Shingo Kasahara, Venkateswaran Subramanian, Alan Daugherty, Yasufumi Sato, Jun Wada

Circulation reports 1 ( 4 ) 155 - 161 2019.4

Language：English Publishing type：Research paper (scientific journal)

Background:
Chronic angiotensin II (AngII) infusion promotes ascending aortic dilation in C57BL/6J mice. Meanwhile, vasohibin-2 (VASH2) is an angiogenesis promoter in neovascularization under various pathologic conditions. The aim of this study was to investigate whether exogenous VASH2 influences chronic AngII-induced ascending aortic dilation.
Methods and Results:
Eight-ten-week-old male C57BL/6J mice were injected with adenovirus (Ad) expressing either VASH2 or LacZ. One week after the injection, mice were infused with either AngII or saline s.c. for 3 weeks. Mice were divided into 4 groups: AngII+VASH2, AngII+LacZ, saline+VASH2, and saline+LacZ. Overexpression of VASH2 significantly increased AngII-induced intimal areas as well as the external diameter of the ascending aorta. In addition, VASH2 overexpression promoted ascending aortic medial elastin fragmentation in AngII-infused mice, which was associated with increased matrix metalloproteinase activity and medial smooth muscle cell (SMC) apoptosis. On western blot analysis, accumulation of apoptotic signaling proteins, p21 and p53 was increased in the AngII+VASH2 group. Furthermore, transfection of human aortic SMC with Ad VASH2 increased p21 and p53 protein abundance upon AngII stimulation. Positive TUNEL staining was also detected in the same group of the human aortic SMC.
Conclusions:
Exogenous VASH2 exacerbates AngII-induced ascending aortic dilation in vivo, which is associated with increased medial apoptosis and elastin fragmentation.

DOI： 10.1253/circrep.CR-19-0008

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[Surgical Repair of Ebstein's Anomaly in the Adult].

Shingo Kasahara

Kyobu geka. The Japanese journal of thoracic surgery 72 ( 4 ) 283 - 289 2019.4

Language：Japanese Publishing type：Research paper (scientific journal)

Ebstein's anomaly (EA) is a rare congenital cardiac malformation and this anomaly is a disorder of a tricuspid valve development in which the valve leaflets fail to delaminate properly from the ventricular wall. Clinical symptoms are age dependent and include cyanosis (size of inter-atrial communication), right-sided heart failure, arrhythmias, and general fatigue on exercise. Optimal timing of surgical intervention is often difficult and must be individualized. Patients have good long-term survival and functional outcomes after undergoing surgery for Ebstein's anomaly in adult population. Operation includes tricuspid valve repair or replacement, closure of any inter-atrial communications, and appropriate antiarrhythmia procedures.

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Balloon atrial septostomy in hypoplastic left heart syndrome with restrictive atrial septum. International journal

Yosuke Fukushima, Kenji Baba, Maiko Kondo, Yoshihiko Kurita, Takahiro Eitoku, Yusuke Shigemitsu, Kenta Hirai, Hirokazu Tsukahara, Tatsuo Iwasaki, Shingo Kasahara, Yasuhiro Kotani, Shinichi Otsuki

Pediatrics international : official journal of the Japan Pediatric Society 61 ( 4 ) 339 - 344 2019.4

Language：English Publishing type：Research paper (scientific journal)

BACKGROUND: Rashkind balloon atrial septostomy (BAS) can be challenging in infants with hypoplastic left heart syndrome (HLHS) and small atrial septal defect (ASD). METHODS: We retrospectively reviewed all infants with HLHS who underwent surgery and BAS between January 2006 and December 2015. The infants were divided into three groups: no BAS; catheter BAS; and open AS. Infants who underwent catheter BAS were divided into two groups based on atrial septal anatomy: standard and complex. RESULTS: Of the 70 patients, 57 (81%) underwent Glenn surgery. Subsequently, a significant difference in survival was observed: 86% (44/51), 91% (10/11), and 25% (2/8) in the no BAS, catheter BAS, and open AS groups, respectively (P = 0.0002). No significant difference was seen between the no BAS and the catheter BAS groups (P = 1.0). In the 56 patients who underwent catheterization after surgery, no intergroup differences in mean pulmonary artery pressure, pulmonary vascular resistance, or pulmonary artery index were found. We classified catheter BAS into standard (n = 5) and complex (n = 5) based on ASD location, and septum thickness. All patients in the standard group underwent complete Rashkind BAS, but in the complex group, only one patient underwent complete Rashkind BAS, with the remaining requiring initial static BAS (P = 0.048). Following septostomy, ASD size, ASD flow, and percutaneous oxygen saturation (SpO2 ) were not significantly different between the two groups. CONCLUSIONS: Catheter BAS is effective in infants with HLHS and a restrictive atrial septum. Infants with standard or complex atrial septum can achieve equivalent outcomes despite more patients often requiring static BAS.

DOI： 10.1111/ped.13716

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周術期におけるECMO 小児複雑心奇形の周術期におけるECMO治療

岩崎達雄, 金澤伴幸, 清水一好, 川瀬宏和, 森松博史, 笠原真悟

日本臨床麻酔学会誌 39 ( 2 ) 148 - 154 2019.3

Language：Japanese Publisher：日本臨床麻酔学会

小児におけるECMO(Extracorporeal Membrane Oxygenation)治療は、先天性心疾患に対しても重要な適応がある。小児複雑心奇形周術期におけるECMO導入のコンセンサスの得られた明確な基準はないが、循環破綻による多臓器障害を合併した状態での導入より、計画的早期の導入の方が離脱率の向上につながると考えられる。出血性合併症が問題となりやすいが、病態を把握し補充療法に努める。心機能の回復には心室の十分な減圧が必要である。小児複雑心奇形の特徴的な疾患である単心室症例のECMO管理では循環生理および解剖学的特徴をよく理解し、各々の状態に応じた管理が肝要である。(著者抄録)

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Other Link： https://search.jamas.or.jp/index.php?module=Default&action=Link&pub_year=2019&ichushi_jid=J01620&link_issn=&doc_id=20190319280006&doc_link_id=%2Fci4jjsca%2F2019%2F003902%2F007%2F0148-0154%26dl%3D0&url=https%3A%2F%2Fwww.medicalonline.jp%2Fjamas.php%3FGoodsID%3D%2Fci4jjsca%2F2019%2F003902%2F007%2F0148-0154%26dl%3D0&type=MedicalOnline&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00004_2.gif

Improvement of lung function and pulmonary hypertension after pulmonary aneurysm repair: case series

Satoshi Akagi, Kentaro Ejiri, Shingo Kasahara, Kazufumi Nakamura, Hiroshi Ito

Pulmonary Circulation 9 ( 1 ) 2019.1

Language：English Publishing type：Research paper (scientific journal) Publisher：SAGE Publications Ltd

Pulmonary artery aneurysms (PAA) can be complicated with pulmonary arterial hypertension (PAH), causing sudden death due to PA rupture and dissection. Because treatment with PAH-targeted drugs does not always prevent PAA progression, prophylactic surgical repair of the PAA seems a promising alternative. However, although it avoids rupture and dissection of the PAs, additional benefits have not been forthcoming. We therefore present two patients with co-existing PAH and a PAA who underwent surgical repair of the aneurysm. Following the surgery, their lung function and pulmonary hypertension improved. Optimal treatment of PAA remains uncertain, however, with no clear guidelines regarding the best therapeutic approach. This case series provides physicians with reasons to repair PAA surgically in patients with PAH.

DOI： 10.1177/2045894019831217

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Percutaneous lead extraction for patients with large vegetations using an unusual technique. International journal

Nobuhiro Nishii, Akihito Miyoshi, Yoshimasa Morimoto, Hiroshi Morita, Shingo Kasahara, Hiroshi Ito

HeartRhythm case reports 5 ( 1 ) 40 - 43 2019.1

Diabetic nephropathy is associated with frailty in patients with chronic hemodialysis.

Yuki Kakio, Haruhito A Uchida, Hidemi Takeuchi, Yuka Okuyama, Michihiro Okuyama, Ryoko Umebayashi, Kentaro Wada, Hitoshi Sugiyama, Ken Sugimoto, Hiromi Rakugi, Shingo Kasahara, Jun Wada

Geriatrics & gerontology international 18 ( 12 ) 1597 - 1602 2018.12

Language：English Publishing type：Research paper (scientific journal)

AIM: Since 1998, the leading cause of chronic hemodialysis in Japan has been diabetic nephropathy. Diabetes mellitus is known to be a risk factor for frailty, but it still remains unknown whether diabetic nephropathy is associated with frailty in chronic dialysis patients. The authors carried out the present study to reveal the association between frailty and diabetic nephropathy in chronic hemodialysis patients. METHODS: A total of 355 patients who were on hemodialysis were recruited. Participants were divided into two groups of either patients who suffered diabetic nephropathy with end-stage renal disease (DN group, n = 150) or not (Non-DN group, n = 205). The authors investigated the difference of the prevalence of frailty between the two groups. Furthermore, the authors examined the risk factors for frailty. RESULTS: The prevalence of frailty in the DN group was significantly higher than that in the Non-DN group (28.0% vs 16.5%, P = 0.0161). To evaluate the association between frailty and its risk factors, we compared frail patients (n = 71) and non-frail patients (n = 262). After adjusting their interrelationships by using multivariate logistic regression analysis, diabetic nephropathy was determined as a significant risk factor for frailty. CONCLUSIONS: The authors found the close association between frailty and diabetic nephropathy in chronic hemodialysis patients. Geriatr Gerontol Int 2018; 18: 1597-1602.

DOI： 10.1111/ggi.13534

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Infective Endocarditis of Patent Foramen Ovale Closure Device Presenting as an Amoeboid-Like Mass. International journal

Hidenaru Yamaoka, Yoichi Takaya, Nobuhisa Watanabe, Teiji Akagi, Koji Nakagawa, Norihisa Toh, Yasuhiro Kotani, Shingo Kasahara, Hiroshi Ito

JACC. Cardiovascular interventions 11 ( 22 ) 2337 - 2338 2018.11

他院にてV-V ECMOを導入した患者に対して生体両肺移植を施行した1例

宮本綾子, 高浪大地, 西村まどか, 堂口琢磨, 高寛, 塚原紘平, 笠原真悟, 大藤剛宏

体外循環技術 45 ( 3 ) 310 - 310 2018.9

Peripheral artery disease is associated with frailty in chronic hemodialysis patients. International journal

Michihiro Okuyama, Hidemi Takeuchi, Haruhito A Uchida, Yuki Kakio, Yuka Okuyama, Ryoko Umebayashi, Kentaro Wada, Hitoshi Sugiyama, Ken Sugimoto, Hiromi Rakugi, Shingo Kasahara, Jun Wada

Vascular 26 ( 4 ) 425 - 431 2018.8

Language：English Publishing type：Research paper (scientific journal)

Objectives The clinical condition of frailty is a common problem in the elderly population. However, the relationship between peripheral artery disease and frailty in hemodialysis patients remains unknown. The aim of this study was to identify the relationships between peripheral artery disease and frailty in Japanese chronic hemodialysis patients. Methods A total of 362 chronic hemodialysis patients who regularly visited six institutions were enrolled. To evaluate frailty, the modified Fried's frailty phenotype adjusted for Japanese were used. Peripheral artery disease was defined as ankle-brachial index <0.9. Results Of 362 patients, 62 patients (17.1%) were categorized as peripheral artery disease group and 300 patients (82.9%) as Non-peripheral artery disease group. The prevalence of frailty in the peripheral artery disease group was significantly higher than in the Non-peripheral artery disease group (34% vs. 18%, P = 0.0103). Non-shunt side grip strength was significantly stronger in the Non-peripheral artery disease group (23.6 kg vs. 17.0 kg, P < 0.0001). Thigh circumferences were also significantly larger in the Non-peripheral artery disease group (41.7 cm vs. 39.7 cm, P = 0.0054). A multivariate logistic regression analysis demonstrated that the factors independently associated with peripheral artery disease were as follows: frailty (odds ratio = 2.06, 95% confidence interval 1.09-3.89) and myocardial infarction (odds ratio = 3.74, 95% confidence interval 2.05-6.83). Conclusions It is concluded that peripheral artery disease is closely associated with frailty in hemodialysis patients.

DOI： 10.1177/1708538118756690

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胎児エコーにて肺静脈血流が鬱血パターンを呈したhigh risk HLHS症例の検討

近藤麻衣子, 馬場健児, 栗田佳彦, 栄徳隆裕, 重光祐輔, 福嶋遥佑, 平井健太, 原真祐子, 大月審一, 笠原真悟, 岩崎達雄

日本小児循環器学会雑誌 34 ( Suppl.1 ) s1 - 244 2018.7

無脾症候群単心室症例の治療成績に関する検討

重光祐輔, 原真祐子, 川本祐也, 平井健太, 福嶋遥佑, 栄徳隆裕, 栗田佳彦, 近藤麻衣子, 馬場健児, 大月審一, 笠原真悟

日本小児循環器学会雑誌 34 ( Suppl.1 ) s1 - 277 2018.7

主要体肺側副血行(MAPCA)の治療戦略におけるカテーテル診断の意義

福嶋遥佑, 大月審一, 馬場健児, 近藤麻衣子, 栗田佳彦, 栄徳隆裕, 重光祐輔, 平井健太, 川本祐也, 原祐子, 笠原真悟

日本小児循環器学会雑誌 34 ( Suppl.1 ) s1 - 141 2018.7

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Papers - KASAHARA Shingo