摘要
目的:比较最小化心室起搏中心室起搏管理(MVP)与房室间期自动搜索[Search AV(+)]功能对右室起搏比例(VP%)及左室射血分数(LVEF)的影响。方法:50例症状性窦缓、病态窦房结综合征、间歇性房室传导阻滞的患者,均安装双腔起搏器,分为MVP组和Search AV(+)组,程控MVP组关闭Search AV(+)功能,开启MVP功能;Search AV(+)组开启Search AV(+)功能。于术后随访,比较其6个月的心房起搏、心室起搏比例、高频心房事件次数,及LVEF的值。结果:50例患者完成随访,MVP组比Search AV(+)组的心室起搏比例、高频心房事件次数都显著降低,分别为(11.4±8.3)%,(36.7±7.4)%和(32±10)次,(86±16)次;6个月的LVEF值较术前有显著差异,两组心房起搏比例、12个月的LVEF值差异无统计学意义。结论:MVP功能与SearchAV(+)功能相比可更加减少不必要的右心室起搏,减少高频心房事件。
Objective： To examine the difference of two strategies as managed ventricular pacing（MVP） and Search AV（＋） algorithm on the percentage of right ventricular pacing and LVEF level in dual chamber pacemaker.Methods： A total of 50 symptomatic bradycardia,sick sinus syndrome or paroxysmal atrioventricular block patients were implanted with a pacemaker equipped with both algorithms（MVP or Search AV（＋）） were enrolled.They were divided into two groups： MVP group and Search AV（＋） group and followed up for 3,6,and 12 months respectively after implantation.The percent of atrial pacing,ventricular pacing,and atrial high frequencies events were compared respectively,and LVEF were examined on 6 months＇ follow-up.Results： Fifty patients completed the follow-up study.The percent of ventricular pacing and atrial high frequencies events were lower in MVP group than in Search AV（＋） group as（11.4±8.3）% vs（36.7±7.4） % and（32±10） times vs（86±16） times,respectively.There was no difference in atrial pacing percent and LVEF after 12 months between Search AV（＋） and MVP groups.Conclusion： Managed ventricular pacing algorithm,when compared with Search AV（＋）,offers further ventricular pacing reduction in patients implanted with a dual-chamber pacemaker,and reduces atrial high frequencies events.
出处
《武汉大学学报（医学版）》
CAS
北大核心
2012年第4期524-527,共4页
Medical Journal of Wuhan University
