【摘要】 选择因病态窦房结综合征安装DDD心脏起搏器的患者31例。根据植入后是否开启心室自身优先(VIP)功能分为对照组(n=15)与观察组(n=16),随访起搏器参数,并观察累计心室起搏比例(Cum%VP)、左房内径(LAD)、左室舒张末期内径(LVEDD)、左室射血分数(LVEF)及6 min步行试验距离的变化。起搏器植入术后12个月,观察组与对照组比较Cum%VP比例明显降低(P<0.01);LVEDD显著减少(P<0.01);6 min步行试验距离显著增加(P<0.05)。DDD心脏起搏器VIP功能可以显著减少累计心室起搏比例,从而更好的保护左心功能。更多还原

【Abstract】 31 patients with sick sinus syndrome undergone dual-chamber pacemaker implantation were randomly divided into control group( n = 15) and observation group( n = 16) which was based on whether to run VIP function. All the patients were followed-up by evaluating cumulative proportion of ventricular pacing( Cum% VP),left atria diameter( LAD),left ventricular end-diastolic diameter( LVEDD),left ventricular ejection fraction( LVEF)and the distance of 6 min walk test after 12 months. All of the above parameters between the two groups were compared. After 12 months,the VIP function caused significant increase of the Cum% VP( P < 0. 01) and LVEDD( P< 0. 01) compared with the control group. The distance of 6min walk test was increased( P < 0. 05) compared with the control group when VIP function was running. The VIP function of dual-chamber pacemaker could significantly reduce the proportion of cumulative ventricular pacing,in order to protect the left ventricular function.更多还原