Impact on mitral regurgitation in patients with AVB undergoing permanent pacemaker implantation: left bundle branch pacing vs. right ventricular septum pacing

LBBP significantly reduced MR severity and improved LV remodeling and systolic function compared with RVSP. Moreover, LBBP and baseline LVEDD were independently associated with a reduction in MR severity among AVB patients undergoing pacemaker implantation, highlighting the superiority of LBBP as a preferred pacing strategy in this population.