单腔起搏器睡眠频率开放对左心房的临床观察

摘要

Objective:Prospective observational and possible mechanisms of right ventricular single chamber pacemaker sleep function and opening of the left atrium. Methods:30 casesⅢdegree atrioventricular block patients successfully implanted permanent single-chamber pacemakers, were randomly divided into the sleep function open group and not open, respectively, in 1 year, 2 years after implantation, before discharge, follow-up, measuredratio, the 24h total cardiac and atrial fibrillation (AF) incidence of right ventricular pacing, left atrial diameter (LAD). Results:Two groups of right ventricular pacing ratio compared to the just implantation 24h total cardiac compare and AF incidence, the difference was not statistically significant (P>0.05);the total cardiac comparing 1 year and 2 years, The AF incidence difference was statistically significant(P<0.05). LAD change:open group, the difference has not statistically significant (P>0.05), and the control group, the difference was statistically significant(P<0.05). Conclusions:Sleep frequency function and opening up can reduce the number of right ventricular pacing, slow left atrial enlargement, and to reduce the occurrence of AF.%　　目的：前瞻性观察右心室单腔起搏器睡眠频率功能开放对左心房的影响及可能机制。方法：30例Ⅲ度房室传导阻滞患者成功置入永久单腔心脏起搏器,随机分为睡眠功能开放组及未开放,分别在植入后出院前、1年、2年时随访时,测定右室起搏比率,24h总心搏数及心房颤动(AF)发生率,左心房内径(LAD)。结果：两组的右室起搏比率比较、在刚植入时24h总心搏数比较和AF发生率比较,差异无统计学意义(P>0.05)；1年及2年时总心搏数比较、AF发生率比较差异有统计学意义(P<0.05)；LAD变化：开放组差异无统计学意义(P>0.05),对照组差异有统计学意义(P<0.05)。结论：睡眠频率功能开放可减少右室起搏数量,延缓左心房扩大,减少AF的发生。