His Pacing (n=50) LBBA Pacing (n=50) P-value
Age (mean) 73.2 ± 15.3 78.2 ± 9.2 p = 0.047
Male (%) 28/50 (56.0%) 31/50 (61.8%) p = 0.542
LVEF (%) 51.0 ± 15.9 57.0 ± 13.1 p = 0.044
Ischemic Cardiomyopathy 6/50 (12.0%) 1/50 (2.0%) P = 0.050
Non-Ischemic Cardiomyopathy 16/50 (32.0%) 8/50 (16.0%) p = 0.061
Intrinsic QRS (ms) 135.4 ± 29.1 131.0 ± 34.6 p = 0.505
Left Bundle Branch Block 12/50 (25.0%) 11/50 (22.0%) p = 0.726
Right Bundle Branch Block 18/50 (37.5%) 21/50 (42.0%) p = 0.649
Post-TAVR 10/50 (20.0%) 10/50 (20.0%) p = 1.000
Pacemaker Indications
Sick sinus syndrome 8/50 (16.0%) 6/50 (12.0%) p = 0.564
High degree AV Block 15/50 (30.0%) 20/50 (40.0%) p = 0.564
Complete AV block 19/50 (38.0%) 21/50 (42.0%) p = 0.683
Resynchronization 8/50 (16.0%) 3/50 (6.0%) p = 0.110