研究者詳細 - 中川　晃志

論文 - 中川　晃志

分割表示 215 件中 21 - 40 件目／全件表示 >>

Management of sensing issues with a subcutaneous implantable cardioverter-defibrillator in a patient with Brugada syndrome: A case report. 国際誌

Satoshi Kawada, Nobuhiro Nishii, Tomofumi Mizuno, Masakazu Miyamoto, Koji Nakagawa, Hiroshi Morita

HeartRhythm case reports 9 ( 12 ) 878 - 882 2023年12月

Initial results of transcatheter modification of left atrial appendage by obliteration with device in patients with nonvalvular atrial fibrillation: Real-world data from the TERMINATOR registry. 国際誌

Hidehiko Hara, Shunsuke Kubo, Yoshifumi Nakajima, Takashi Matsumoto, Yusuke Kondo, Hiroki Sugane, Kenji Okubo, Koji Nakagawa, Daisuke Nagatomo, Daisuke Hachinohe, Shigeki Kusa, Masahiko Goya, Mamoru Nanasato, Takeshi Arita, Hiro Yamasaki, Kensuke Kuwabara, Tomotaka Yoshiyama, Nobuaki Tanaka, Masaharu Masuda, Tomohiro Sakamoto, Masaki Nakashima, Yohei Ohno, Shigeru Saito, Masato Fukunaga

Journal of cardiology 83 ( 5 ) 298 - 305 2023年10月

記述言語：英語掲載種別：研究論文（学術雑誌）

BACKGROUND: Percutaneous left atrial appendage closure (LAAC) has increased for those who need alternative to long-term anticoagulation with non-valvular atrial fibrillation (NVAF). METHODS AND RESULTS: From September 2019, after initiating WATCHMAN (Boston Scientific, Maple Grove, MN, USA) device implantation, we established Transcatheter Modification of Left Atrial Appendage by Obliteration with Device in Patients from the NVAF (TERMINATOR) registry. Utilizing 729 patients' data until January 2022, we analyzed percutaneous LAAC data regarding this real-world multicenter prospective registry. A total of 729 patients were enrolled. Average age was 74.9 years and 28.5 % were female. Paroxysmal AF was 37.9 % with average CHADS2 3.2, CHA2DS2-VASc 4.7, and HAS-BLED score of 3.4. WATCHMAN implantation was successful in 99.0 %. All-cause deaths were 3.2 %, and 1.2 % cardiovascular or unexplained deaths occurred during follow-up [median 222, interquartile range (IQR: 93-464) days]. Stroke occurred in 2.2 %, and the composite endpoint which included cardiovascular or unexplained death, stroke, and systemic embolism were counted as 3.4 % [median 221, (IQR: 93-464) days]. Major bleeding defined as BARC type 3 or 5 was seen in 3.7 %, and there was 8.6 % of all bleeding events in total [median 219, (IQR: 93-464) days]. CONCLUSIONS: These preliminary data demonstrated percutaneous LAAC with WATCHMAN device might have a potential to reduce stroke and bleeding events for patients with NVAF. Further investigation is mandatory to confirm the long-term results of this strategy using this transcatheter local therapy instead of life-long systemic anticoagulation.

DOI： 10.1016/j.jjcc.2023.09.010

PubMed

researchmap

Syncope and loss of consciousness after implantation of a cardioverter-defibrillator in patients with Brugada syndrome: Prevalence and characteristics in long-term follow-up. 国際誌

Saori Asada, Hiroshi Morita, Tomofumi Mizuno, Takuro Masuda, Akira Ueoka, Masakazu Miyamoto, Satoshi Kawada, Koji Nakagawa, Nobuhiro Nishii

Heart rhythm O2 4 ( 10 ) 641 - 649 2023年10月

記述言語：英語掲載種別：研究論文（学術雑誌）

BACKGROUND: Syncope is a significant prognostic factor in patients with Brugada syndrome (BrS). However, the risk of ventricular arrhythmia in patients with nonarrhythmic loss of consciousness (LOC) is similar to that in asymptomatic patients. LOC events after implantable cardioverter-defibrillator (ICD) implantation may provide insights into underlying causes of the initial LOC episode. OBJECTIVE: The purpose of this study was to examine LOC characteristics following ICD implantation. METHODS: We retrospectively analyzed 112 patients with BrS (mean age 47 years; 111 men) who were treated with an ICD. The patients were classified into 3 groups based on symptoms at implantation: asymptomatic (35 patients); LOC (46 patients); and ventricular tachyarrhythmia (VTA) (31 patients). We evaluated the incidence and cause of LOC during long-term follow-up after ICD implantation. RESULTS: During mean follow-up of 12.2 years, 41 patients (37%) experienced LOC after ICD implantation. Arrhythmic LOC occurred in 5 asymptomatic patients, 14 LOC patients, and 16 patients with VTA. Nonarrhythmic LOC, similar to the initial episode, occurred after ICD implantation in 6 patients with prior LOC (2 with neurally mediated syncope and 4 with epilepsy). Most epileptic patients experienced LOC during rest or sleeping, and did not show an abnormal encephalogram during initial evaluation of the LOC episodes. CONCLUSION: After ICD implantation, 13% of patients had nonarrhythmic LOC similar to the initial episode. Accurate classification of LOC based on a detailed medical history is important for risk stratification, although distinguishing arrhythmic LOC from epilepsy-related LOC episodes can be challenging depending on the circumstances and characteristics of the LOC event.

DOI： 10.1016/j.hroo.2023.09.007

PubMed

researchmap

Ventricular arrhythmias induced by phase 2 reentry in a patient with J-wave syndrome. 国際誌

Satoshi Kawada, Hiroshi Morita, Masakazu Miyamoto, Saori Asada, Koji Nakagawa, Nobuhiro Nishii

HeartRhythm case reports 9 ( 9 ) 629 - 633 2023年9月

GORE CARDIOFORM Septal Occluderを用いた経皮的卵円孔開存閉鎖術の国内初期成績

中島充貴, 赤木禎治, 三木崇史, 中山理絵, 高谷陽一, 中川晃志, 杜徳尚, 中村一文

日本心臓病学会学術集会抄録 71回 O - 1 2023年9月

Significance of left posterior extension of early repolarization in patients with J-wave syndrome. 国際誌

Masakazu Miyamoto, Hiroshi Morita, Tomofumi Mizuno, Takuro Masuda, Akira Ueoka, Saori Asada, Satoshi Kawada, Koji Nakagawa, Nobuhiro Nishii

Heart rhythm 20 ( 12 ) 1729 - 1736 2023年8月

記述言語：英語掲載種別：研究論文（学術雑誌）

BACKGROUND: J waves in the inferior or lateral leads are characteristic electrocardiographic (ECG) changes in patients with early repolarization syndrome (ERS). However, the presence of J waves in the left posterior region has not yet been evaluated. OBJECTIVE: The purpose of this study was to clarify the significance of J waves in the posterior left ventricle using leads V7-V9 and a body surface mapping (BSM) system. METHODS: Forty patients diagnosed with ERS were included. All patients exhibited J waves in either the contiguous inferior, lateral, or posterior leads. We evaluated the incidence of J waves in the inferolateral and posterior leads using a 15-lead ECG with synthesized V7-V9 and an 87-lead BSM. Additionally, we assessed the arrhythmogenicity of the posterior regions based on the morphology of the premature ventricular complexes (PVCs) associated with ventricular fibrillation (VF). RESULTS: J waves were observed in the lateral, inferior, and posterior leads of 26 (65%), 31 (78%), and 39 (97%) patients, respectively. J waves were found only in the posterior leads of 5 patients. BSM was evaluated in 9 patients, all of whom exhibited a positive area on the posterior region. PVCs associated with VF were recorded in 5 patients. Among patients with inferolateral and posterior J waves, all except 1 patient who displayed left bundle branch block morphology showed PVCs originating from the posterior left ventricular region. CONCLUSION: Posterior J waves are common in ERS patients. This abnormality can be detected using leads V7-V9 and the BSM system and may be associated with arrhythmogenesis.

DOI： 10.1016/j.hrthm.2023.08.032

PubMed

researchmap

奇異性脳塞栓症を起こした卵円孔開存は心臓CTでどのように見えるのか?

三木崇史, 中川晃志, 辻真弘, 中島充貴, 西原大裕, 中山理絵, 高谷陽一, 三好亨, 赤木禎治, 伊藤浩

日本心血管インターベンション治療学会抄録集 31回 MO66 - 5 2023年8月

Prevalence and Treatment of Arrhythmias in Patients With Transthyretin and Light-Chain Cardiac Amyloidosis. 査読

Masakazu Miyamoto, Kazufumi Nakamura, Koji Nakagawa, Nobuhiro Nishii, Satoshi Kawada, Akira Ueoka, Saori Asada, Atsuyuki Watanabe, Hiroshi Morita, Hiroshi Ito

Circulation reports 5 ( 7 ) 298 - 305 2023年7月

記述言語：英語掲載種別：研究論文（学術雑誌）

Background: Various types of arrhythmia are observed in patients with cardiac amyloidosis, but the prevalence of arrhythmia has not been fully investigated. This study investigated the prevalence and treatment of arrhythmias in patients with cardiac amyloidosis before the introduction of new agents for amyloidosis, such as tafamidis. Methods and Results: Of 53 patients who were histologically diagnosed with cardiac amyloidosis at 10 centers in western Japan between 2009 and 2021, 43 who were diagnosed on the basis of immunohistochemical staining were evaluated in this study. Of these 43 patients, 13 had immunoglobulin light-chain (AL) amyloidosis and 30 had transthyretin (ATTR) amyloidosis; further, 27 had atrial tachyarrhythmia, 13 had ventricular tachyarrhythmia, and 17 had bradyarrhythmia. Atrial fibrillation (AF) was the most common arrhythmia in patients with cardiac amyloidosis (n=24; 55.8%), especially among those with ATTR amyloidosis (70.0% of ATTR vs. 23.1% of AL). Eleven (25.6%) patients were treated with a cardiac implantable device. All 3 patients with pacemakers were alive at the last follow-up (median 76.7 months; interquartile range [IQR] 4.8-146.4 months). Of the 8 patients who underwent AF ablation, there was no recurrence in 6 (75%) after a median of 39.3 months (IQR 19.8-59.3 months). Conclusions: The prevalence of various arrhythmias was high in patients with cardiac amyloidosis. AF occurred most frequently in patients with cardiac amyloidosis, especially among patients with ATTR.

DOI： 10.1253/circrep.CR-23-0022

PubMed

researchmap

Significant Delayed Activation on the Right Ventricular Outflow Tract Represents Complete Right Bundle-Branch Block Pattern in Brugada Syndrome. 国際誌

Yoshimasa Morimoto, Hiroshi Morita, Kentaro Ejiri, Tomofumi Mizuno, Takuro Masuda, Akira Ueoka, Saori Asada, Masakazu Miyamoto, Satoshi Kawada, Koji Nakagawa, Nobuhiro Nishii, Kazufumi Nakamura, Hiroshi Ito

Journal of the American Heart Association 12 ( 10 ) e028706 2023年5月

記述言語：英語掲載種別：研究論文（学術雑誌）

Background The appearance of complete right bundle-branch block (CRBBB) in Brugada syndrome (BrS) is associated with an increased risk of ventricular fibrillation. The pathophysiological mechanism of CRBBB in patients with BrS has not been well established. We aimed to clarify the significance of a conduction delay zone associated with arrhythmias on CRBBB using body surface mapping in patients with BrS. Methods and Results Body surface mapping was recorded in 11 patients with BrS and 8 control patients both with CRBBB. CRBBB in control patients was transiently exhibited by unintentional catheter manipulation (proximal RBBB). Ventricular activation time maps were constructed for both of the groups. We divided the anterior chest into 4 areas (inferolateral right ventricle [RV], RV outflow tract [RVOT], intraventricular septum, and left ventricle) and compared activation patterns between the 2 groups. Excitation propagated to the RV from the left ventricle through the intraventricular septum with activation delay in the entire RV in the control group (proximal RBBB pattern). In 7 patients with BrS, excitation propagated from the inferolateral RV to the RVOT with significant regional activation delay. The remaining 4 patients with BrS showed a proximal RBBB pattern with the RVOT activation delay. The ventricular activation time in the inferolateral RV was significantly shorter in patients with BrS without a proximal RBBB pattern than in control patients. Conclusions The CRBBB morphology in patients with BrS consisted of 2 mechanisms: (1) significantly delayed conduction in the RVOT and (2) proximal RBBB with RVOT conduction delay. Significant RVOT conduction delay without proximal RBBB resulted in CRBBB morphology in patients with BrS.

DOI： 10.1161/JAHA.122.028706

PubMed

researchmap

Diagnostic Performance of Cardiac Computed Tomography for Detecting Patent Foramen Ovale: Evaluation Using Transesophageal Echocardiography and Catheterization as Reference Standards. 国際誌

Takashi Miki, Koji Nakagawa, Keishi Ichikawa, Tomofumi Mizuno, Rie Nakayama, Kentaro Ejiri, Satoshi Kawada, Yoichi Takaya, Masakazu Miyamoto, Toru Miyoshi, Teiji Akagi, Hiroshi Ito

Journal of cardiovascular development and disease 10 ( 5 ) 2023年4月

記述言語：英語掲載種別：研究論文（学術雑誌）

BACKGROUND: Patent foramen ovale (PFO) is associated with various diseases such as cryptogenic stroke, migraine, and platypnea-orthodeoxia syndrome. This study aimed to evaluate the diagnostic performance of cardiac computed tomography (CT) for PFO detection. MATERIALS AND METHODS: Consecutive patients diagnosed with atrial fibrillation and who underwent catheter ablation with pre-procedural cardiac CT and transesophageal echocardiography (TEE) were enrolled in this study. The presence of PFO was defined as (1) the confirmation of PFO using TEE and/or (2) the catheter crossing the interatrial septum (IAS) into the left atrium during ablation. CT findings indicative of PFO included (1) the presence of a channel-like appearance (CLA) on the IAS and (2) a CLA with a contrast jet flow from the left atrium to the right atrium. The diagnostic performance of both a CLA alone and a CLA with a jet flow was evaluated for PFO detection. RESULTS: Altogether, 151 patients were analyzed in the study (mean age, 68 years; men, 62%). Twenty-nine patients (19%) had PFO confirmed by TEE and/or catheterization. The diagnostic performance of a CLA alone was as follows: sensitivity, 72.4%; specificity, 79.5%; positive predictive value (PPV), 45.7%; negative predictive value (NPV), 92.4%. The diagnostic performance of a CLA with a jet flow was as follows: sensitivity, 65.5%; specificity, 98.4%; PPV, 90.5%; NPV, 92.3%. The diagnostic performance of a CLA with a jet flow was statistically superior to that of a CLA alone (p = 0.045), and the C-statistics were 0.76 and 0.82, respectively. CONCLUSION: A CLA with a contrast jet flow in cardiac CT has a high PPV for PFO detection, and its diagnostic performance is superior to that of a CLA alone.

DOI： 10.3390/jcdd10050193

PubMed

researchmap

Pulmonary arteriovenous fistula in a rare location: The importance of excluding patent foramen ovale.

Mitsutaka Nakashima, Takashi Miki, Yoichi Takaya, Rie Nakayama, Koji Nakagawa, Satoshi Akagi, Norihisa Toh, Teiji Akagi, Hiroshi Ito

Journal of cardiology cases 27 ( 3 ) 124 - 127 2023年3月

記述言語：英語

UNLABELLED: A 46-year-old woman with a history of repeated thromboembolic stroke and anti-phospholipid antibody syndrome was referred to our hospital. Saline contrast transthoracic echocardiography showed that microbubbles appeared in the left atrium within 4 heartbeats. Thus, she was initially suspected as having a patent foramen ovale with associated paradoxical embolism. However, no evidence of patent foramen ovale or atrial septal defect could be found using transesophageal echocardiography. Saline contrast transesophageal echocardiography showed that microbubbles flowed into the left atrium through the left superior pulmonary vein. Ultimately, she was diagnosed as having a pulmonary arteriovenous malformation located at the upper left pulmonary lobe using contrast computed tomography and pulmonary artery angiography. Pulmonary arteriovenous malformations are typically located in the lower lobe of either lung and, in bubble studies, contrast appears in the left atrium after 4 heartbeats. Here, the pulmonary arteriovenous malformation was in the upper lobe, and contrast appeared in the left atrium at an earlier time point: one associated with patent foramen ovale. These findings made it difficult to differentiate the two diseases initially. This case suggests that pulmonary arteriovenous malformation should be carefully considered, even if microbubbles appear in the left atrium early on a saline contrast transthoracic echocardiograph. LEARNING OBJECTIVE: Pulmonary arteriovenous malformation occasionally appears in the upper lobe. In these cases, microbubbles may appear in the left atrium after detection in the right atrium with a time-course that is suggestive of a patent foramen ovale. Therefore, diagnosis should be carefully confirmed by using other multimodal imaging tests, such as transesophageal echocardiography, contrast computed tomography, or pulmonary artery angiography.

DOI： 10.1016/j.jccase.2022.11.005

PubMed

researchmap

成人フォンタン患者における血漿容積状態計算の有用性

中島充貴, 杜徳尚, 川田哲史, 高谷陽一, 中川晃志, 三好亨, 西井伸洋, 赤木禎治, 伊藤浩

日本循環器学会学術集会(Web) 87回 OJ62 - 6 2023年3月

潜在性脳卒中を引き起こす卵円孔開存の心臓CTに関する形態学的特徴

三木崇史, 中川晃志, 辻真弘, 中島充貴, 西原大裕, 中山理絵, 高谷陽一, 三好亨, 赤木禎治, 伊藤浩

日本循環器学会学術集会(Web) 87回 PJ004 - 6 2023年3月

潜因性脳卒中を引き起こす卵円孔開存の心臓CTにおける形態学的特徴(Morphological Features on Cardiac CT of Patent Foramen Ovale Causing Cryptogenic Stroke)

三木崇史, 中川晃志, 辻真弘, 中島充貴, 西原大裕, 中山理絵, 高谷陽一, 三好亨, 赤木禎治, 伊藤浩

日本循環器学会学術集会抄録集 87回 PJ004 - 6 2023年3月

Temporary balloon occlusion test can overestimate the risk of acute pulmonary edema after transcatheter atrial septal defect closure. 国際誌

Koji Nakagawa, Teiji Akagi, Yoichi Takaya, Takashi Miki, Yasufumi Kijima, Rie Nakayama, Norihisa Toh, Nobuhiro Nishii, Kazufumi Nakamura, Hiroshi Morita, Hiroshi Ito

Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions 2023年1月

記述言語：英語掲載種別：研究論文（学術雑誌）

BACKGROUND: Atrial septal defect (ASD) closure can cause acute pulmonary edema. Before transcatheter closure is performed, temporary balloon occlusion test (BOT) is recommended in patients with left ventricular dysfunction to predict the risk of pulmonary edema. However, the accuracy of BOT has not been verified. This study aimed to compare hemodynamic differences between BOT and transcatheter closure. METHODS: A total of 42 patients with a single ASD over age 18 years who underwent BOT before transcatheter ASD closure between October 2010 and May 2020 were analyzed. Pulmonary capillary wedge pressure (PCWP) was measured using a Swan-Ganz catheter placed in the pulmonary artery at baseline, after 10 min of BOT, and after transcatheter closure. Amplatzer septal occluder was used for all transcatheter closures. RESULTS: Mean patient age was 64 ± 18 years (range, 18-78). Mean ASD diameter and pulmonary to systemic flow ratio were 18 ± 5 and 2.8 ± 1.0 mm, respectively. Mean PCWP at baseline, during BOT, and after transcatheter closure was 8.9 ± 2.9, 13.5 ± 4.2, and 9.5 ± 2.6 mmHg, respectively. The difference between BOT and after transcatheter closure values was significant (p < 0.001). During BOT, PCWP increased ≥18 mmHg in 7 patients, whereas after ASD closure, PCWP was <18 mmHg in all 7 and none developed acute pulmonary edema. CONCLUSION: Temporary balloon occlusion of an ASD and transcatheter ASD closure result in different hemodynamic change. BOT overestimates increase of PCWP after transcatheter ASD closure and requires careful interpretation. Well-designed, larger studies in higher-risk patients are warranted to verify the clinical implications of BOT in more detail.

DOI： 10.1002/ccd.30556

PubMed

researchmap

修復術後ファロー四徴症・類縁疾患の遠隔期肺動脈弁置換術における右室拡張障害の意義

中島充貴, 杜徳尚, 小谷恭弘, 川田哲史, 高谷陽一, 中川晃志, 西井伸洋, 中村一文, 森田宏, 赤木禎治, 笠原真悟, 伊藤浩

日本成人先天性心疾患学会雑誌 12 ( 1 ) 149 - 149 2023年1月

奇異性脳塞栓症を起こした卵円孔開存は心臓CTでどう見えるのか?

三木崇史, 中川晃志, 辻真弘, 中島充貴, 西原大裕, 中山理絵, 高谷陽一, 三好亨, 赤木禎治, 伊藤浩

日本成人先天性心疾患学会雑誌 12 ( 1 ) 158 - 158 2023年1月

成人期Fontan術後症例においてPlasma Volume Statusは中心静脈圧と予後を推定する

中島充貴, 杜徳尚, 川田哲史, 高谷陽一, 中川晃志, 三好亨, 西井伸洋, 赤木禎治, 伊藤浩

日本成人先天性心疾患学会雑誌 12 ( 1 ) 136 - 136 2023年1月

Gore Cardioform ASD Occluderを用いた経皮的心房中隔欠損閉鎖術の初期成績

古田めぐみ, 赤木禎治, 三木崇史, 西原大裕, 中山理絵, 高谷陽一, 中川晃志, 伊藤浩

日本成人先天性心疾患学会雑誌 12 ( 1 ) 154 - 154 2023年1月

【<成人先天性心疾患特有の問題>】成人期の心房中隔欠損の特徴と治療戦略を知る

杜徳尚, 高谷陽一, 中川晃志, 赤木禎治, 伊藤浩

日本小児循環器学会雑誌 38 ( 4 ) 229 - 233 2022年12月

記述言語：日本語出版者・発行元：(NPO)日本小児循環器学会

心房中隔欠損(Atrial septal defect,ASD)は頻度の高い先天性心疾患であり,チアノーゼなどの症状が出ないことも多く,小児期に診断されることなく成人に到達する症例も少なくない.成人期まで到達したASDでは長年の右心系の負荷と肺血流の増加に伴い,心不全,心房細動,肺高血圧,などの合併症を伴い病態が複雑となることがある.従来の外科手術に加えて,近年の経カテーテルASD閉鎖術,心房細動に対するカテーテルアブレーション,肺高血圧治療薬の進歩に伴い治療成績は向上している.(著者抄録)

J-GLOBAL

researchmap

その他リンク： https://search.jamas.or.jp/default/link?pub_year=2022&ichushi_jid=J02003&link_issn=&doc_id=20230424230003&doc_link_id=10.9794%2Fjspccs.38.229&url=https%3A%2F%2Fdoi.org%2F10.9794%2Fjspccs.38.229&type=J-STAGE&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00007_3.gif

　前のページ - 次のページ　

<中川 晃志>

論文 - 中川 晃志

<中川　晃志>

論文 - 中川　晃志