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程序起搏器现已被广泛应用。关于起搏心率对心功能的影响,其说不一。多数认为,心室起搏心率改变时心输出量并无或几无影响,但尚未见到关于起搏心率改变时左室射血分数或容量变化的报道。本文试图观察慢性心室起搏患者静止时起搏心率的改变对左室功能的影响并世行评价。 22例完全性房室传导阻滞的男性患者,年龄
Program pacemakers are now widely used. On the impact of pacing heart rate on cardiac function, its different. Most believe that there is little or no change in cardiac output when the ventricular pacing changes, but no reports of changes in left ventricular ejection fraction or volume have been found. This article attempts to observe the effects of changes in pacemaker heart rate on left ventricular function at rest in patients with chronic ventricular pacing and evaluated by the World Bank. 22 cases of complete atrioventricular block in male patients, age