Safety and efficiency of pacing at right ventricular outflow versus at ventricular cardiac apex

VernacularTitle:右心室流出道起搏与常规心尖部起搏的对比研究
Author: Xiao-Qi DENG ¹ ; Lin CAI ; Jiong TANG ; Han-Xiong LIU ; Jian-Xiong LIU ; Chuan HE ; Chun-Bo YAN
Author Information

1. 四川省成都市第三人民医院
Keywords: Cardiac pacing,artificial; Electrocardiography
From: Chinese Journal of Cardiology 2008;36(8):726-728
CountryChina
Language:Chinese
Abstract: Objective To compare the safety and efficiency of pacing at right ventricular outflow versus right ventricular apex. Method Patients were divided into two groups: pacing at ventricular cardiac apex (common pacing group, n = 22) and pacing at right ventricular outflow tract(uncommon pacing group, n = 18). Results Impedance and amplitude of R-wave were similar during implantation between the two groups (all P 0. 05). The pacing threshold and electric current were significant higher in uncommon group than those in common pacing group ( all P < 0. 05), however, these differences disappeared at 1 month post pacemaker implantation ( all P 0.05). The mean QRS duration tended to be shorter in uncommon pacing group compared to that in common pacing group (P 0.05 ). There was no pacemaker associated adverse effect in both groups. Conclusion The safety and efficiency of pacing at right ventricular outflow was similar as those of pacing at right ventricular apex.