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- W2393500265 abstract "Objective:To evaluate the impacts of right ventricular apical(RVA) pacing on heart function in the eldy.Method:A total of 115 patients(≥60 years old) received permanent cardiac pacemaker for bradyarrhythmias were enrolled.Two different cardiac pacing mode of VVI(n=60) and DDD(n=55) were performed.Atrial leads were placed at right auricular appendage,ventricular leads were placed at RVA.According to the final cumulative percentage of ventricular pacing(Cum%VP),the subjects were divided into three groups.Group A: Cum%VP50%(n=34),Group B: Cum%VP≥50%-100%(n=38),Group C: Cum%VP=100%(n=43).we investigated patients' symptome,exercise tolerance,ejection fraction of left ventricular(LVEF) and the concentration of brain natriuretic peptide(BNP) to compare heart functon preoperative and postoperative of patients in each group and different pacing mode.Result:①At 18 months after operation,each group had a trend of aggravation in heart function compared with preoperative,that means decrease in LVEF and increase in BNP.But group A changed least and group C changed most,group B fell in between.②Different pacing mode of VVI and DDD had similar effect on heart function,the incidence of atrial fibrillation and cerebral embolism was a little higher in VVI group.Conclusion:①Under the circumstance of RVA pacing,the deterioration of heart function increase with Cum%VP;②Pacing mode of VVI or DDD is not the determinative factor of heart function." @default.
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- W2393500265 date "2010-01-01" @default.
- W2393500265 modified "2023-09-28" @default.
- W2393500265 title "Impacts of right ventricular apical pacing on heart function in the eldy" @default.
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