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小儿右室流出道起搏
引用本文:赵鹏军. 小儿右室流出道起搏[J]. 心血管病学进展, 2011, 32(3): 354-357. DOI: 10.3969/j.issn.1004-3934.2011.03.016
作者姓名:赵鹏军
作者单位:上海交通大学医学院附属上海儿童医学中心心内科,上海,200127
摘    要:对于一些需要安装永久起搏器的患者来讲,由于易于固定,起搏阈值低等优点,右心室起搏常将起搏电极置于心尖部,但长期随访发现,心尖部起搏可改变心室激动顺序,导致心室收缩不同步,造成二尖瓣反流、心房颤动和心功能不全。研究发现右室流出道起搏对左室功能的保护较右室心尖部起搏有利,由于右室流出道起搏靠近His束,电活动近似正常生理状态,可使左右心室电-机械活动更协调,从而抑制心室重构并保护心功能,因此,右室流出道起搏是替代右室心尖部起搏的较好选择。

关 键 词:心脏起搏  右室心尖部  右室流出道  心室不同步

Children's Right Ventricular Outflow Tract Pacing
ZHAO Peng-jun. Children's Right Ventricular Outflow Tract Pacing[J]. Advances in Cardiovascular Diseases, 2011, 32(3): 354-357. DOI: 10.3969/j.issn.1004-3934.2011.03.016
Authors:ZHAO Peng-jun
Affiliation:ZHAO Peng-jun,LI Fen(Department of Cardiology,Shanghai Children's Medical Centre Affiliated with Shanghai Jiaotong University,Shanghai 200127,China)
Abstract:In patients treated with permanent cardiac pacing,the ventricular electrode is typically placed in the right ventricular apex(RVA) since it provides excellent lead stability and low capture thresholds.Long-term follow up of trials show that RVA pacing changes ventricular activation sequences,causes ventricular dyssynchrony,mitral regurgitation,atrial fibrillation and impairs cardiac function.More and more research show that right ventricular outflow tract(RVOT) pacing had been shown to have more beneficial ...
Keywords:cardiac pacing  right ventricular apex  right ventricular outflow tract  ventricular dyssynchrony  
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