Predictors of right ventricular pacing and pacemaker dependence in transcatheter aortic valve replacement patients.

Sixty-eight percent of patients meeting post-procedural guideline indications for PPM did not require RV pacing at 30 days. Fifty-two percent of these patients demonstrated recovery of sinus node function or AV conduction within 10 days post-implant. RBBB, intra-procedural complete heart block, bifascicular block, and QRS duration > 120 ms were associated with RV pacing dependence at 30 days. These findings suggest that post-TAVR conduction disturbances may be acutely reversible in a significant proportion of patients receiving PPM within 10-30 days of implant.