ABSTRACT
ObjectiveTo investigate the effect of Buchangwenxin particles in maximum P wave (Pmax), dispersion of P wave(Pd) of elder patients with diastolic cardiac dysfunction and paroxysmal atrial fibrillation(PAF).Methods115 elder patients with diastolic cardiac dysfunction and PAF were randomly divided into two groups:group A received the routine drug therapy,and group B received Buchangwenbxin particles with routine drug therapy.Another 54 elder patients with diastolic cardiac function but without PAF was selected as control group.Changes in Pmax and Pd were compared between groups with or without PAF as well as subgroups.ResultsPmax and Pd were wider in PAF group than no PAF group(all P ＜0.01).There was no difference between group A and B in Pmax and Pd (all P＞ 0.05), and there were less atrial fibrillation as well as shortened Pmax and Pd in group B, which was significantly different with group A(all P ＜0.01).ConclusionPmax and Pd were wider in elder patients with diastolic cardiac dysfunction and PAF than those without PAF,and Buchangwenxin particles could shorten Pmax and Pd and reduce the attacks of atrial fibrillation.