右心室间隔部和心尖部螺旋电极起搏对患者预后的影响

Comparative study of spiral electrode pacing between right ventricular septal and right ventricular apical

目的:评价右心室间隔部与心尖部起搏对心室同步性及患者预后的影响。方法:将入选患者分为右心室心尖部组(RVA组)和右心室间隔部组(RVS组),比较两组患者手术情况、手术前后QRS波宽度、左心室射血分数(LVEF)、左室大小及主要不良心血管事件发生。结果:RVS组与RVA组电极导线植入时间、X线曝光时间差异无统计学意义(P>0.05)。与RVA组比较,术后RVS组左室有所缩小,起搏时QRS宽度明显变窄,差异有统计学意义。其主要不良心血管事件减少。结论:RVS起搏尽可能地维持了双心室的正常激动顺序和双心室的同步性,比RVA起搏更能改善患者预后。

Objective：To evaluate the effect of ventricular synchrony and prognosis of patients with spiral electrode pacing between right ventricular septal and right ventricular apical.Method：Patients were divided into spiral electrode pacing right ventricular apical group（RVA group）and right ventricular septal（RVS group）.Two groups were compared with preoperative and postoperative QRS,left ventricular ejection fraction（LVEF）and left ventricular size.Result：RVS group and RVA group electrode wires implanted time and the X-ray exposure time were no significant different（P〉0.05）.Compared with RVA group,the left ventricle,QRS duration,and main cardiovascular events were decreased in RVS group.Conclusion：RVA pacing causes left and right ventricular dyssynchrony.RVS pacing maintains the normal activation sequence and synchronization of biventricular as much as possible,and improves patient prognosis than RVA pacing.