Effects of different pacemaker sites on cardiac function in patients with permanent cardiac pacemaker implantation
Objective To explore the effects of different pacemaker sites on cardiac function in patients with permanent cardiac pacemaker implantation.Methods 200 patients with permanent cardiac pacemaker implantation were divided into a control group and an experimental group according to different pacemaker sites,each with 100 cases.The control group was implanted in right ventricular apex,while the experimental group was implanted in right ventricular septum.Both groups were compared in terms of cardiac function indexes[left ventricular ejection fraction(LVEF),left ventricular end-diastolic diameter(LVEDD),left ventricular end-systolic diameter(LVESD),and B-type natriuretic peptide(BNP)]and quality of life[36-Item Short-Form Health Survey(SF-36)score]before and after the implantation.Results After 6 months of implantation,LVEF in both groups was higher than that before the implantation in this group,and LVEDD and LVESD were shorter than those before the implantation in this group,and BNP was lower than that before the implantation in this group;LVEF of(53.06±5.47)%in the experimental group was significantly higher than(48.45±5.11)%in the control group;the experimental group had LVEDD of(52.48±3.32)mm and LVESD of(49.07±3.56)mm,which were significantly smaller than(54.88±3.84)and(51.54±3.42)mm in the control group;BNP of(67.43±8.06)pg/ml in the experimental group was significantly lower than(82.18±8.84)pg/ml in the control group(P<0.05).After 6 months of implantation,the SF-36 score in both groups were significantly higher than that before the implantation in this group,and SF-36 score of(80.06±5.11)points in the experimental group were higher than(72.12±5.67)points in the control group(P<0.05).Conclusion Compared with right ventricular apex,right ventricular septum implantation can improve cardiac function and quality of life more effectively in patients with permanent cardiac pacemaker implantation.