Methods
Study Design :
We conducted a retrospective, observational study of consecutive patients who underwent physiological pacing (either HBP or LBBAP) between September 2016 and September 2020, at one large academic medical center. The first 50 patients from each group who underwent successful implantation procedures were identified and included in this analysis. All patients underwent pacemaker implantation for standard indications consistent with current guidelines. This study was approved by the Institution Review Board at Mount Sinai Hospital.