Objective:To explore the influence of left bundle branch area pacing(LBBAP)and right ventricular septum pacing(RVSP)on tricuspid regurgitation(TR).Methods:This retrospective observational study included patients who received permanent cardiac pacemaker implantation for the first time due to bradycardia in the First People's Hospital of Zhangjiagang from January 2018 to August 2021,and whose echocardiogram data were com-plete within 2 weeks before operation and more than 1 year after operation.The patients were divided into LBBAP group and RVSP group.The postoperative effects on TR were analyzed and compared.Results:A total of 104 pa-tients were enrolled,including 69 males(66.3％).The median follow-up time was 28.5 months.There were 21 patients(20.2％)with aggravated TR and 10 patients(9.6％)with new TR.There were 10 cases of TR aggrava-tion in LBBAP group and 11 cases of TR aggravation in RVSP group,without statistical difference(P=0.807 or 1.0).Meanwhile,19 patients in the LBBAP group had mild or above TR before operation,and 14 patients(73.7％)had reduced TR after operation;17 patients in the RVSP group had mild or above TR before operation,and 6 patients(35.3％)had reduced TR after operation.There was statistical difference between the two groups(P=0.021).Conclusion:The LBBAP is recommended especially for patients with TR before operation.
left bundle area branch pacingright ventricular septum pacingtricuspid regurgitationpace-maker
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