Incidence of atrial fibrillation in patients after dual-chamber pacemaker implantation / 中华老年心脑血管病杂志

ABSTRACT

Objective To analyze the incidence of atrial fibrillation (AF) and asymptomatic AF in sick sinus syndrome (SSS) and atrioventricular block (AVB) patients after dual-chamber pacemaker implantation.Methods Five hundred and fifteen SSS and AVB patients who underwent dual-chamber pacemaker implantation were divided into SSS group (n =221),AF group (n =106),non-AF group (n=115)and into AVB group (n=294),AF group (n=103),non-AF group (n=191).The clinical data,incidence of AF and asymptomatic AF,their influence factors in different groups were compared.Results The incidence of AF was 40.6％ in the 515 patients.The percentage of ventricular pacing (VP％) was significantly higher and the left ventricular end diastolic diameter was significantly longer in AVB group than in SSS group (P＜0.01).The age was significantly older,the incidence of CHD and the percentage of atrial pacing (AP％) were significantly higher,the left atrial diameter was significantly longer in AF group than in non-AF group (P＜0.05,P＜0.01).The age was significantly older,the incidence of CHD and the VP％ were significantly higher in asymptomatic AF group than in symptomatic AF group (P＜0.05,P＜0.01).Multivariate logistic regression analysis showed that age,AP％ and amiodarone amnistration history were the risk factors for AF while age and VP％ were the risk factors for asymptomatic AF (OR=0.957,95％CI0.925-0.990,P=0.011;OR=0.982,95％CI0.972-0.992,P=0.000).Conclusion Pacemaker can effectively monitor AF,especially asymptomatic AF.