【摘要】 目的观察双腔起搏器心室起搏管理(managed ventricular pacing,MVP)、房室间期自动搜索(Search AV/+)策略的起搏部位与高频心房事件(atrial high-frequency events,AHR)的发生风险。方法选择2015年1月—2016年12月在我院行永久性心脏起搏器植入术的103例作为研究对象,随机分为MVP组(n=51)和Search AV/+组(n=52),MVP组关闭Search AV/+功能,开启MVP功能;Search AV/+组开启Search AV/+功能。观察两组术后3个月及6个月心房起搏(artrial pacing,AP)和心室起搏(ventricular pacing,VP)比例、AHR的发生情况。结果 MVP组术后3个月VP比例、术后6个月VP比例与AHR较Search AV/+组明显减少,差异有统计学意义(P<0.05)。MVP组病窦综合征患者术后3个月VP比例、术后6个月VP比例与AHR较Search AV/+组显著减少,差异有统计学意义(P<0.05);MVP组间歇性房室传导阻滞患者术后3个月和术后6个月VP比例与AHR均较Search AV/+组减少,差异有统计学意义(P<0.05)。结论双腔起搏器MVP策略VP比例低,能有效降低病窦综合征或间歇性房室传导阻滞患者VP百分比和AHR的发生,安全性更好。更多还原

【Abstract】 Objective To evaluate the different pacing sites and risk of atria high rate( AHR) episodes through two algorithms: managed ventricular pacing( MVP) and automatic atrioventricular interval search( Search AV/+). Methods A total of 103 patients who were implanted with permanent dual chamber pacemakers in our hospital were included in the study. Patients were randomly divided into MVP group( n = 51) and Search AV/+group( n = 52). Search AV/+ algorithms were programmed off and MVP on in MVP group. By contrast,Search AV/+ algorithms were programmed on in Search AV/+ group after operation. Follow-up results of percentage of ventricular pacing( VP) and atrial pacing( AP),as well as atrial high-ate( AHR) episodes at 3 months and 6 months after operation were recorded and analyzed. Results After operation,percentage of VP at 3 months and 6 months as well as AHR at 6 months in MVP Group were significantly lower than those in Search AV/+ group( P < 0. 05).Those indicators described above were remarkably lower in sick sinus syndrome( SSS) patients in MVP group than in Search AV/+ group( P < 0. 05). Six months after operation,AHR in MVP group was significantly lower than that in intermittent atrioventricular block( AVB) patients in Search AV/+ group( P < 0. 05). At 3 and 6 months after operation,percentage of VP and AHR in MVP Group was significantly lower than that in Search AV/+ group in intermittent AVB patients( P < 0. 05). Conclusion MVP algorithm is more likely to reduce VP percentage and AHR in patients with dual chamber pacemaker due to SSS or intermittent AVB,and has superior safety.更多还原