心室起搏管理功能对房室传导阻滞患者的近期疗效观察

目的观察具备心室起搏管理（MVP）功能的起搏器（Adapta）在Ⅱ度或间隙性Ⅲ度房室传导阻滞患者的近期效果。方法29例患者入选，分别置入具有MVP功能的Adapt起搏器（实验组，n=17）和其他类型双腔起搏器（对照组，n=12）。并分别在置入前和置入后1、3个月进行随访。随访中观察上述两组的右室起搏比例、心功能（纽约心功能分级、血脑钠肽）、左房内径、左室舒张末内径、左室射血分数等变化。结果置入双腔起搏器（Adapta）术后1个月及3个月，与对照组比较，实验组心室起搏比例明显降低（39．89％±41．21％vs96．48％±3．52％；40．91％±43．49％vs94．53％±4．62％，P均〈0．05）。其他指标两组间无明显差异。结论起搏器心室起搏管理功能可以在短期内降低心室起搏比例。

The Short-term Effect of Pacemaker with Managed Ventricular Pacing Function on Patients with Atrioventricular Block

Objective To find out the clinical effect of the pacemaker with managed ventricular pacing（MVP） function.Methods Twenty-nine patients were respectively selected into this clinical trial and implanted with the pacemaker which has MVP function（experimental group,n=17） and other types of dual- chamber pacemaker（control group,n=12）.We evaluated the short-term efficacy（before implantation and at 1,3 month after implantation） of experimental group compared to control group on the pacing proportion of right ventricle,cardiac function（New York Heart functional class,blood B-type natriuretic peptide）,left atrial diameter, left ventricular end-diastolic diameter, left ventricular ejection fraction,contraction synchronicity of ventricle,quality of life and other changes.Results 1 and 3 month after implantation,the pacing proportion of right ventricular of experimental group decreased significantly compared with that of control group（39.89% ± 41.21% vs 96.48% ± 3.52%;40.91% ± 43.49% vs 94.53% ± 4.62%,P all 〈 0.05）.Conclusion MVP function can effectively reduce the proportion of ventricular pacing in short-term.And parameters have no difference between the two groups.