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本文对32例接受永久性心脏起搏器治疗患者进行了血液动力学研究。在PR间期于100～200ms的生理范围内,非同步心室收缩(心室心律,心室起搏)的心输出量较之房室同步收缩(正常窦性心律、心房起搏及房室同步起搏)的心输出量低14～17%。生理性起搏能提高心输出量,因其保留心房泵血机制,这对心脏病患者是重要的。70次/分的起搏可以满足静息状态下的生理需要,太快的起搏对患者无血液动力学益处。
In this paper, 32 patients undergoing permanent pacemaker treatment were studied in hemodynamics. In the PR interval in the physiological range of 100 ~ 200ms, asynchrony ventricular contraction (ventricular rhythm, ventricular pacing) cardiac output than the atrioventricular synchronized contraction (normal sinus rhythm, atrial pacing and atrioventricular pacing ) Heart output 14 to 17% lower. Physiological pacing can improve cardiac output because it preserves the atrial pumping mechanism, which is important for heart patients. 70 beats / min pacing can meet the physiological needs of rest, too fast pacing in patients with no hemodynamic benefit.