具有自动夺获功能起搏器的临床应用  

Clinical experience with autocapture pacemaker

作　　者：杨艳敏[1] 朱俊[1] 宋有城[1] 袁贤奇[1] 谭慧琼[1] 贺丽霞[1] 章友华[1] 李建冬[1] 章晏[1] 刘玉芝 

机构地区：[1]中国医学科学院中国协和医科大学阜外心血管病医院

出　　处：《中华心血管病杂志》1998年第2期120-122,共3页Chinese Journal of Cardiology

摘　　要：目的为评价具有自动夺获功能起搏器临床应用的初步结果。方法９例患者安装了具有自动夺获功能的起搏器（ＲｅｇｅｎｃｙＳＣ＋２４０２Ｌ），观察术后早期（术后１～２天）、术后１周、２周及术后远期（１～４个月）的起搏阈值、输出电压、ＥＲ振幅、阻抗及极化电位等参数变化。结果８例均能以自动夺获方式工作，输出电压随起搏阈值变化而变化。１例因自身心律与起搏心律形成融合波而致感知不足，导致“起搏阈值波动”。１例因极化电位升高而致自动夺获功能无法工作。结论具有自动夺获功能起搏器的临床应用表明其具有安全、省电的特点。Objective To evaluate the clinical efficacy of pacemaker with autocapture function. Methods Pacemakers with autocapture function (Regency SC+2402L) were implanted in 9 patients with sick sinus syndrome or atrioventricular block. Stimulation threshold, output amplitude, evoked response(ER), impedance and polarization were measured at 1 2 days, 1 week and 2 weeks postoperatively, and during the follow up period (1 4 months after operation).Results Eight patients were paced normally with autocapture function, output amplitude changed with the change of stimulation threshold. In one case an unexpected threshold rise occurred and resulted in “fluctuation of stimulation threshold”, possibly due to the fusion beat could not be sensed by the pulse generator. Autocapture function failed in one case because polarization signal was 66% above the propose ER sensitivity. Conclusion The pacemaker with autocapture function is safe and energy saving.

关 键 词：心律失常 心脏起搏器 自动夺获功能 

分 类 号：R654.2[医药卫生—外科学]