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However, the efficacy, safety, and long-term outcomes of bipolar RFCA of VAs are not fully determined.\n\nObjective\nThe purpose of this study was to evaluate the effectiveness and safety of bipolar RFCA in treating refractory VAs during long-term follow-up.\n\nMethods\nEighteen patients who underwent bipolar RFCA for ventricular tachycardia (VT) at 7 institutions were retrospectively investigated. Underlying heart diseases included remote myocardial infarction (n = 3 [17%]) and nonischemic cardiomyopathy (n = 15 [83%]). Although unipolar RFCA was performed in all patients, either it failed to suppress VT or VT recurred. The interventricular septum, left ventricular free wall, and left ventricular summit were targeted for bipolar RFCA.\n\nResults\nAcute success (VT termination and/or noninducibility) was achieved with bipolar RFCA in 16 patients (89%). Complications during the procedure included complete atrioventricular block (n = 2) and coronary artery stenosis (n = 1). One patient underwent chemical ablation after bipolar RFCA failure. At 12-month follow-up, VT reoccurred in 8 patients (44%). However, in patients with recurrence, VT burden had decreased: only 4 patients underwent re-RFCA, and only 1 of the 4 required chemical ablation. In the remaining 4 patients, re-RFCA was not required, as VT was controlled by medication or an implantable cardioverter–defibrillator.\n\nConclusion\nBipolar RFCA is useful for acute suppression of refractory VT. 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Acute and long-term results of bipolar radiofrequency catheter ablation of refractory ventricular arrhythmias of deep intramural origin
http://hdl.handle.net/2241/0002001256
http://hdl.handle.net/2241/00020012560013c051-73c5-4997-a8f7-0efcc891bbb0
名前 / ファイル | ライセンス | アクション |
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HR_17-9.pdf (846 KB)
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Item type | Journal Article(1) | |||||||||||||||||||||||
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公開日 | 2021-09-14 | |||||||||||||||||||||||
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言語 | en | |||||||||||||||||||||||
タイトル | Acute and long-term results of bipolar radiofrequency catheter ablation of refractory ventricular arrhythmias of deep intramural origin | |||||||||||||||||||||||
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言語 | eng | |||||||||||||||||||||||
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資源 | http://purl.org/coar/resource_type/c_6501 | |||||||||||||||||||||||
タイプ | journal article | |||||||||||||||||||||||
アクセス権 | ||||||||||||||||||||||||
アクセス権 | open access | |||||||||||||||||||||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||||||||||||||||||
著者 |
五十嵐, 都
× 五十嵐, 都× 野上, 昭彦× Fukamizu, Seiji
× 関口, 幸夫× Nitta, Junichi
× Sakamoto, Naka
× Sakamoto, Yuichiro
× Kurosaki, Kenji
× Takahashi, Yoshihide
× Kimata, Akira
× Komatsu, Yuki
× 町野, 毅× Kuroki, Kenji
× 山﨑, 浩× 青沼, 和隆× 家田, 真樹 |
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抄録 | ||||||||||||||||||||||||
内容記述タイプ | Abstract | |||||||||||||||||||||||
内容記述 | Background Successful bipolar radiofrequency catheter ablation (RFCA) of refractory ventricular arrhythmias (VAs) has been reported. However, the efficacy, safety, and long-term outcomes of bipolar RFCA of VAs are not fully determined. Objective The purpose of this study was to evaluate the effectiveness and safety of bipolar RFCA in treating refractory VAs during long-term follow-up. Methods Eighteen patients who underwent bipolar RFCA for ventricular tachycardia (VT) at 7 institutions were retrospectively investigated. Underlying heart diseases included remote myocardial infarction (n = 3 [17%]) and nonischemic cardiomyopathy (n = 15 [83%]). Although unipolar RFCA was performed in all patients, either it failed to suppress VT or VT recurred. The interventricular septum, left ventricular free wall, and left ventricular summit were targeted for bipolar RFCA. Results Acute success (VT termination and/or noninducibility) was achieved with bipolar RFCA in 16 patients (89%). Complications during the procedure included complete atrioventricular block (n = 2) and coronary artery stenosis (n = 1). One patient underwent chemical ablation after bipolar RFCA failure. At 12-month follow-up, VT reoccurred in 8 patients (44%). However, in patients with recurrence, VT burden had decreased: only 4 patients underwent re-RFCA, and only 1 of the 4 required chemical ablation. In the remaining 4 patients, re-RFCA was not required, as VT was controlled by medication or an implantable cardioverter–defibrillator. Conclusion Bipolar RFCA is useful for acute suppression of refractory VT. Although VT recurrence rates during long-term follow-up were relatively high, we observed a significant reduction in VT burden. |
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言語 | en | |||||||||||||||||||||||
書誌情報 |
en : Heart Rhythm 巻 17, 号 9, p. 1500-1507, 発行日 2020-09 |
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収録物識別子タイプ | PISSN | |||||||||||||||||||||||
収録物識別子 | 15475271 | |||||||||||||||||||||||
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収録物識別子タイプ | NCID | |||||||||||||||||||||||
収録物識別子 | AA11968909 | |||||||||||||||||||||||
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識別子タイプ | PMID | |||||||||||||||||||||||
関連識別子 | 32353585 | |||||||||||||||||||||||
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関連タイプ | isIdenticalTo | |||||||||||||||||||||||
識別子タイプ | DOI | |||||||||||||||||||||||
関連識別子 | https://doi.org/10.1016/j.hrthm.2020.04.028 | |||||||||||||||||||||||
権利 | ||||||||||||||||||||||||
言語 | en | |||||||||||||||||||||||
権利情報 | © 2020 The Authors. Published by Elsevier Inc. on behalf of Heart Rhythm Society.This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). | |||||||||||||||||||||||
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値 | publisher | |||||||||||||||||||||||
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言語 | en | |||||||||||||||||||||||
出版者 | Elsevier |