研究者詳細 - 中川　晃志

論文 - 中川　晃志

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Efficacy of catheter ablation for paroxysmal atrial fibrillation in patients with atrial septal defect: a comparison with transcatheter closure alone 国際誌

Koji Nakagawa, Teiji Akagi, Satoshi Nagase, Yoichi Takaya, Yasufumi Kijima, Norihisa Toh, Atsuyuki Watanabe, Nobuhiro Nishii, Kazufumi Nakamura, Hiroshi Morita, Kengo Kusano, Hiroshi Ito

EP Europace 21 ( 11 ) 1663 - 1669 2019年11月

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 (OUP)

<title>Abstract</title>
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<title>Aims</title>
There is no valid treatment strategy for addressing paroxysmal atrial fibrillation (AF) in patients with unclosed atrial septal defect (ASD). We aimed to assess the efficacy of catheter ablation (CA) compared with transcatheter ASD closure alone for treating pre-existing paroxysmal AF in patients with ASD.

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<title>Methods and results</title>
Among 908 patients who underwent transcatheter ASD closure, we evaluated 50 consecutive patients (63 ± 12 years) with paroxysmal AF. We compared the AF outcomes of these patients after transcatheter ASD closure between those with and without CA prior to ASD closure. Thirty (60%) patients underwent CA. During the follow-up period after ASD closure (mean: 49 ± 23 months), recurrence of AF was observed in 6/30 (20%) patients with upfront CA and 12/20 (60%) patients with ASD closure alone. Kaplan–Meier analysis showed that the AF-free survival rate was significantly higher for patients with CA than for those with ASD closure alone (79% vs. 37% at 5 years, P = 0.002). Upfront CA and previous heart failure hospitalization were associated with recurrence of AF after ASD closure [hazard ratio (HR) 0.18, 95% confidence interval (CI) 0.06–0.53; P = 0.002 and HR 4.64, 95% CI 1.60–13.49; P = 0.005, respectively].

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<title>Conclusion</title>
In ASD patient with paroxysmal AF, transcatheter ASD closure alone demonstrated high AF recurrence rate after ASD closure. On the other hand, upfront CA prior to ASD closure substantially suppressed AF recurrence over the long term. A combination of CA and transcatheter ASD closure may be a feasible treatment strategy for paroxysmal AF in patients with ASD.

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DOI： 10.1093/europace/euz207

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脳卒中予防の新規治療経皮的卵円孔開存閉鎖術の役割

赤木禎治, 高谷陽一, 三木崇史, 中山理絵, 中川晃志, 伊藤浩

日本心血管インターベンション治療学会抄録集 28回 [MO18 - 001] 2019年9月

アンプラッツァーデバイス留置後の心房中隔穿刺

中川晃志, 渡邊敦之, 高谷陽一, 赤木禎治, 森本芳正, 浅田早央莉, 宮本真和, 木村朋生, 西井伸洋, 中村一文, 森田宏, 伊藤浩

日本心血管インターベンション治療学会抄録集 28回 [MO114 - 001] 2019年9月

可動性の大きい心房中隔を有する卵円孔開存に対する至適デバイス選択どのような時に大きな閉鎖栓を選択するのか?

三木崇史, 赤木禎治, 中山理絵, 高谷陽一, 中川晃志, 伊藤浩

日本心血管インターベンション治療学会抄録集 28回 [BP2 - 007] 2019年9月

A Low Critical Event Rate Despite a High Abnormal Event Rate in Patients with Cardiac Implantable Electric Devices Followed Up by Remote Monitoring.

Yoshimasa Morimoto, Nobuhiro Nishii, Saori Tsukuda, Satoshi Kawada, Masakazu Miyamoto, Akihito Miyoshi, Koji Nakagawa, Atsuyuki Watanabe, Kazufumi Nakamura, Hiroshi Morita, Hiroshi Ito

Internal medicine (Tokyo, Japan) 58 ( 16 ) 2333 - 2340 2019年8月

記述言語：英語掲載種別：研究論文（学術雑誌）

Objective Remote monitoring (RM) of cardiac implantable electric devices (CIEDs) has been advocated as a healthcare standard. However, expert consensus statements suggest that all patients require annual face-to-face follow-up consultations at outpatient clinics even if RM reveals no episodes. The objective of this study was to determine the critical event rate after CIED implantation through RM. Methods This multicenter, retrospective, cohort study evaluated patients with pacemakers (PMs), implantable cardioverter defibrillators (ICDs), or cardiac resynchronization therapy defibrillator (CRT-Ds) and analyzed whether or not the data drawn from RM included abnormal or critical events. Patients A total of 1,849 CIED patients in 12 hospitals who were followed up by the RM center in Okayama University Hospital were included in this study. Results During the mean follow-up period of 774.9 days, 16,560 transmissions were analyzed, of which 11,040 (66.7%) were abnormal events and only 676 (4.1%) were critical events. The critical event rate in the PM group was significantly lower than that in the ICD or CRT-D groups (0.9% vs. 5.0% or 5.9%, p<0.001). A multivariate analysis revealed that ICD, CRT-D, and a low ejection fraction were independently associated with critical events. In patients with ICD, the independent risk factors for a critical event were old age, low ejection fraction, Brugada syndrome, dilated phase hypertrophic cardiomyopathy and arrhythmogenic right ventricular cardiomyopathy. Conclusion Although abnormal events were observed in two-thirds of the transmitted RM data, the critical event rate was <1% in patients with a PM, which was lower in comparison to the rates in patients with ICDs or CRT-Ds. A low ejection fraction was an independent predictor of critical events.

DOI： 10.2169/internalmedicine.1905-18

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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年8月

記述言語：英語掲載種別：研究論文（学術雑誌）

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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Impact of Disease Complexity on Cardiovascular Events after the Transition to an Adult Congenital Heart Disease Specialized Medical Unit.

Sho Takahashi, Teiji Akagi, Norihisa Toh, Yoichi Takaya, Koji Nakagawa, Nobuhiro Nishii, Hiroshi Ito

Acta medica Okayama 73 ( 4 ) 307 - 313 2019年8月

記述言語：英語掲載種別：研究論文（学術雑誌）

The follow-up of patients with adult congenital heart disease (ACHD) at a specialized medical unit is necessary for the patients' appropriate medical care. However, limited information is available about cardiovascular events among ACHD patients. Here we investigated the type and frequency of cardiovascular events in ACHD patients in relation to disease complexity. We retrospectively analyzed the cases of 535 patients (median age 35 years) referred to our ACHD center between 2014 and 2017. We divided the patients into 3 groups based on their disease complexity. To evaluate the relationship between disease complexity and cardiovascular events, we performed univariate and multivariate survival analyses. The Simple, moderate, and complex disease groups accounted for 62%, 19%, and 19% of the patients, respectively. Apart from events related to atrial septal defect (ASD) trans-catheter treatment, the frequency of cardiovascular events was dependent on the disease complexity (event-free survival rates at 3 years were 85%, 65%, and 58%, respectively). The hazard ratios were 4.0 and 5.1 in the moderate and complex groups, respectively. With the exception of scheduled transcatheter intervention, cardiovascular events were strongly related to the disease complexity of original heart disease. However, cardiovascular events were not rare even in the simple ACHD group.

DOI： 10.18926/AMO/56932

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Combination of Renal Angioplasty and Angiotensin-converting-enzyme Inhibitor Can Reduce Proteinuria in Patients with Bilateral Renal Artery Disease.

Hironobu Toda, Haruhito Uchida, Kazufumi Nakamura, Hidemi Takeuchi, Masaru Kinomura, Koji Nakagawa, Atsuyuki Watanabe, Toru Miyoshi, Nobuhiro Nishii, Hiroshi Morita, Jun Wada, Hiroshi Ito

Internal medicine (Tokyo, Japan) 58 ( 13 ) 1917 - 1922 2019年7月

記述言語：英語掲載種別：研究論文（学術雑誌）

Recent large clinical trials failed to show clear benefits of percutaneous transluminal renal angioplasty (PTRA) as compared with medical therapy on patients with renal artery stenosis. It was also reported that proteinuria is an adverse prognostic factor after PTRA, and PTRA is less effective in patients with overt proteinuria. From the renoprotective point of view, to reduce proteinuria after PTRA is an important therapeutic goal in patients with renal artery stenosis with overt proteinuria. We hereby describe two patients successfully treated by combination therapy with PTRA and administration of angiotensin-converting enzyme (ACE) inhibitor for bilateral renal artery disease with overt proteinuria.

DOI： 10.2169/internalmedicine.2076-18

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Identification of High-Risk Patent Foramen Ovale Associated With Cryptogenic Stroke: Development of a Scoring System. 国際誌

Rie Nakayama, Yoichi Takaya, Teiji Akagi, Nobuhisa Watanabe, Madoka Ikeda, Koji Nakagawa, Norihisa Toh, Hiroshi Ito

Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography 32 ( 7 ) 811 - 816 2019年7月

記述言語：英語掲載種別：研究論文（学術雑誌）

BACKGROUND: Transcatheter closure of patent foramen ovale (PFO) has become an effective therapeutic strategy for cryptogenic stroke (CS). The identification of high-risk PFO is essential, but the data are limited. This study aimed to clarify the factors related to CS and to develop a score for high-risk PFO. METHODS: We retrospectively analyzed 57 patients with prior CS and 50 without CS who were scheduled for transcatheter closure. PFO characteristics were evaluated by transesophageal echocardiography. Based on factors related to CS, we estimated the risk score. RESULTS: Patients with CS had a greater frequency of large-size PFO (≥2 mm in height), long-tunnel PFO (≥10 mm in length), atrial septal aneurysm, hypermobile interatrial septum, prominent Eustachian valve or Chiari's network, the large right-to-left shunt at rest and during Valsalva maneuver, and low-angle PFO (≤10° of PFO angle from inferior vena cava), compared with patients without CS. Multivariate analysis showed that long-tunnel PFO, the presence of hypermobile interatrial septum, the presence of prominent Eustachian valve or Chiari's network, the large right-to-left shunt during Valsalva maneuver, and low-angle PFO were independently related to CS. When the score was estimated based on 1 point for each factor, the proportion of CS was markedly elevated with a score of ≥2 points. The probability of CS was markedly different between scores of ≤1 or ≥2 points. CONCLUSIONS: PFO risk can be assessed with a score based on high-risk features. The presence of two or more high-risk PFO features is associated with CS.

DOI： 10.1016/j.echo.2019.03.021

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Emerging Role of Coronary Computed Tomography Angiography in Lipid-Lowering Therapy: a Bridge to Image-Guided Personalized Medicine. 国際誌

Toru Miyoshi, Kazuhiro Osawa, Keishi Ichikawa, Kazuki Suruga, Takashi Miki, Masashi Yoshida, Koji Nakagawa, Hironobu Toda, Kazufumi Nakamura, Hiroshi Morita, Hiroshi Ito

Current cardiology reports 21 ( 8 ) 72 - 72 2019年6月

記述言語：英語掲載種別：研究論文（学術雑誌）

PURPOSE OF REVIEW: To summarize the current status of coronary computed tomography angiography (CTA) in the assessment of coronary plaques and discuss the ability of serial coronary CTA to quantitatively measure changes in the plaque burden in response to lipid-lowering therapy. RECENT FINDINGS: Recent advances in coronary CTA have allowed identification of high-risk coronary features in acute coronary syndrome and measurement of changes in the coronary plaque burden with good reproducibility. Statin therapy may delay plaque progression and change some plaque features. However, the clinical relevance of quantitative changes in coronary plaques and the optimal methods to reduce the plaque burden remain unclear. Despite guideline-directed lipid-lowering therapy, adverse events still occur in substantial numbers of patients receiving statins. Coronary CTA is noninvasive and has high diagnostic performance in patients with coronary artery disease, making change in the plaque burden an applicable biomarker for individualized assessment of future risk.

DOI： 10.1007/s11886-019-1170-4

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Radiofrequency catheter ablation prior to percutaneous coronary intervention in patients with atrial fibrillation coexisting with stable coronary artery disease: a single-center pilot study.

Satoshi Kawada, Atsuyuki Watanabe, Yoshimasa Morimoto, Koji Nakagawa, Nobuhiro Nishii, Kazufumi Nakamura, Hiroshi Morita, Hiroshi Ito

Heart and vessels 34 ( 4 ) 632 - 640 2019年4月

記述言語：英語掲載種別：研究論文（学術雑誌）

Atrial fibrillation (AF) frequently coexists with cardiovascular disease (CAD) in a clinical setting. However, the optimum therapy for AF patients who have concomitant CAD is unclear. We retrospectively examined the efficacy and safety of radiofrequency catheter ablation (RFCA) prior to percutaneous coronary intervention (PCI) in patients with AF who had concomitant stable CAD. Between January 2014 and December 2015, a total 264 patients (179 men; mean age, 65.5 ± 10.1 years) who were referred to undergo a first RFCA procedure were reviewed in this study. Of the 264 patients, 41 (15.5%) had stable CAD detected by multi-detector computed tomography before RFCA. Thirty-seven patients who had AF with stable CAD were divided into two treatment arms: (1) RFCA prior to PCI (n = 13) and (2) PCI prior to RFCA (n = 24) [four patients excluded because of left main coronary artery disease (LMCA) or triple vessel disease (TVD)]. The median follow-up was 14 (IQR 8-19) months. There was no significant difference in AF recurrence rate after the procedure between the RFCA first group and PCI first group (P = 0.515). No symptomatic cardiovascular events occurred the during follow-up period. The PCI first group had a significantly longer duration of triple therapy (188.5 ± 167 days vs 5.6 ± 24.5 days, P = 0.01) and all of the four bleeding events occurred during triple therapy (P = 0.01). The results of this single-center pilot study suggested that prior RFCA in patients with AF coexisting with CAD could have fewer serious bleeding events than prior PCI.

DOI： 10.1007/s00380-018-1280-8

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片頭痛合併との比較における,潜因性脳卒中合併ハイリスク卵円孔開存症の同定

中山理絵, 高谷陽一, 赤木禎治, 池田まどか, 渡邉修久, 中川晃志, 杜徳尚, 伊藤浩

日本循環器学会学術集会(Web) 83回 OJ08 - 9 2019年3月

ECMO中の輸血需要に関連した臨床的特徴と凝固管理

青景聡之, 平山隆浩, 塚原紘平, 高寛, 清水一好, 中川晃志, 岩崎達雄, 笠原真悟, 内藤宏道, 中尾篤典

日本集中治療医学会雑誌 26 ( Suppl. ) [O27 - 6] 2019年2月

Fontan患者の上室性不整脈に対し、アブレーション、デバイス、薬物療法を行った一例(A case of ablation, pacemaker implantation and medication for supraventricular tachycardia in patient with Fontan operation)

西井伸洋, 栄徳隆裕, 重光祐輔, 森本芳正, 浅田早央莉, 宮本真和, 杜徳尚, 中川晃志, 渡辺敦之, 森田宏, 笠原真悟, 伊藤浩

日本成人先天性心疾患学会雑誌 8 ( 1 ) 137 - 137 2019年1月

心房中隔欠損症患者における右室容積とexercise capacityの関連性について(Relationship between right ventricular volume and exercise capacity in patients with atrial septal defect)

中山理絵, 高谷陽一, 赤木禎治, 渡辺修久, 池田まどか, 中川晃志, 杜徳尚, 伊藤浩

日本成人先天性心疾患学会雑誌 8 ( 1 ) 111 - 111 2019年1月

カテーテルインターベンションの最新治療卵円孔開存に対するカテーテル治療(Transcatheter Closure of Patent Foramen Ovale)

高谷陽一, 赤木禎治, 中川晃志, 中山理絵, 三木崇史, 伊藤浩

日本成人先天性心疾患学会雑誌 8 ( 1 ) 90 - 90 2019年1月

経胸壁心エコー図によるPFO診断における腹部圧迫法とバブルカットオフ値の有用性(Importance of Abdominal Compression Valsalva Maneuver and Microbubble Cutoff of Transthoracic Echocardiography for Detecting Patent Foramen Ovate)

高谷陽一, 渡辺修久, 池田まどか, 赤木禎治, 中川晃志, 中山理絵, 杜徳尚, 伊藤浩

日本成人先天性心疾患学会雑誌 8 ( 1 ) 111 - 111 2019年1月

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

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年11月

片頭痛患者における卵円孔開存合併頻度と短絡量の検討

赤木禎治, 高谷陽一, 中山理絵, 中川晃志, 三木崇史, 伊藤浩

日本頭痛学会誌 45 ( 2 ) 416 - 416 2018年11月

Progression of electrocardiographic abnormalities associated with initial ventricular fibrillation in asymptomatic patients with Brugada syndrome. 国際誌

Hiroshi Morita, Masakazu Miyamoto, Atsuyuki Watanabe, Saori Tsukuda, Yoshimasa Morimoto, Satoshi Kawada, Koji Nakagawa, Nobuhiro Nishii, Hiroshi Ito

Heart rhythm 15 ( 10 ) 1468 - 1474 2018年10月

記述言語：英語掲載種別：研究論文（学術雑誌）

BACKGROUND: Various risk stratifications in asymptomatic patients with Brugada syndrome (BrS) have been proposed, but the electrophysiological change that promotes ventricular fibrillation (VF) is still unknown. OBJECTIVE: The aim of this study was to clarify the changes in electrocardiographic (ECG) markers at the onset of VF from ECGs recorded when patients were still asymptomatic. METHODS: The subjects of this study included 14 patients with VF and 48 consecutive asymptomatic patients with BrS. We compared ECGs before the initial VF events (>6 months; early phase) with ECGs at the initial VF events (late phase). In asymptomatic patients, we evaluated ECGs at 2 time points with an interval of >6 months. We evaluated various ECG markers including type 1 ECG and fragmented QRS (fQRS; multiple spikes within the QRS complex). RESULTS: ECG parameters of the early and late phases were not different except for decreased ST voltage and low incidence of type 1 ECG in asymptomatic patients. There were no differences in ECG parameters of the early phase between patients with VF and asymptomatic patients. In patients with VF, ECGs at the late phase had longer QRS intervals and intervals between the peak and the end of the T wave and more frequent type 1 ECG and fQRS than did ECGs at the early phase. Those changes were associated with initial VF events (QRS widening: odds ratio [OR] 11.5, P < .01; interval between the peak and the end of the T wave: OR 11.6, P < .01; fQRS: odds ratio 15.3, P < .01; type 1 ECG: OR 6.6, P < .05). CONCLUSION: QRS and ST-T wave abnormalities developed in association with the initial VF events. Aggravation of the conduction disturbance in addition to BrS-ECG promotes VF.

DOI： 10.1016/j.hrthm.2018.06.035

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