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Application of the Implantable Biventricular Pacing-Cardioverter Defibrillator
Author(s): 
Pages: 268-270
Year: Issue:  4
Journal: CHINESE JOURNAL OF CARDIAC PACING AND ELECTROPHYSIOLOGY

Keyword:  心脏病学埋藏式三腔起搏心脏转复除颤器心力衰竭室性心律失常;
Abstract: 探讨经静脉埋藏式三腔起搏心脏转复除颤器(BVP-ICD)的临床应用 .病例入选标准:①缺血性心脏病、扩张性心肌病合并充血性心力衰竭.②左室射血分数<0.35.③QRS波时限 > 130 ms.④24 h动态心电图、临床心电监护、腔内电生理检查中,任一项记录到明确室性心动过速(VT)或心室颤动(VF).采用经锁骨下静脉和头静脉,分别置入右室电极导管到右室,右房电极导管到右心耳,左室电极经冠状静脉窦到冠状静脉后侧支,其中1例为经静脉埋藏三腔双室起搏器(BVP)升级为BVP-ICD.结果:双室起搏阈值 1.7±0.7 V, R 波幅度10.3±4 mV, 双室电极阻抗896.2±82 Ω. 4 例先后 2 次采用电击 T 波诱发出VT或VF,并除颤成功.3 例因心功能差仅诱发1次并除颤成功. 最低有效除颤能量2 例 11 J,5 例20~21J ,手术时间129.28±47.3 min.7例随访3~12个月,心功能改善1~2级.2例分别各有1例除颤事件记录,7例全部存活.结论:BVP-ICD临床疗效较好,但设定首次电击能量时不宜太小,力争尽快转复心律,以策安全.慎用快速心室起搏(Ramp)终止VT.
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