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病理性心动过缓伴心功能不全者，动室率不能随之相应提高，满足生理需要。本文分析78例病人，首先给予临时右室起搏提高心室率，判断效果后，分别选择VVI、DDD型起搏器。后者起搏前、后多普勒超声心动图观察，以探讨人工心脏起搏对心衰病人心功能的影响。对象与方法研究对象：1
Pathological bradycardia with cardiac insufficiency, the rate of the chamber can not be increased accordingly, to meet the physiological needs. This article analyzes 78 patients, first of all, to give temporary right ventricular pacing to improve ventricular rate, to determine the effect, were selected VVI, DDD-type pacemaker. The latter pacing before and after Doppler echocardiography to explore the impact of artificial heart pacing on cardiac function in patients with heart failure. Subjects and methods Research objects: 1