Clinical Research Directory

Inclusion Criteria: 1. Successful insertion of TAVR for aortic stenosis 2. Persistent HDAVB or CHB identified within 30 days of TAVR ● HDAVB is defined as any of the following(9): Second-degree AV block type 2 (Mobitz II) in the presence of a QRS ≥120 msec, or 2:1 AV block in the presence of a QRS ≥120 msec, or ≥2 consecutive P waves at a constant physiologic rate that do not conduct to the ventricles, or transient third-degree AV block, or in the setting of AF a prolonged pause (\>3 s) or a fixed slow (\<50 beats/min) ventricular response rate. 3. Age ≥ 18 years Exclusion Criteria: 1. Patients with a pacemaker/ICD/CRT prior to TAVR 2. More than mild para-valvular regurgitation following TAVR 3. Patients with clinical indication for CRT-D or CRT-P 4. Patients with mechanical tricuspid valve 5. Renal failure - eGFR\<15 or on dialysis 6. Un-revascularized coronary artery disease with proximal multi-vascular coronary disease 7. Acute coronary syndrome with 3 months 8. Cardiogenic shock requiring inotropic therapy within 1 week 9. Life-expectancy \< 2 years 10. Anticipating heart transplant within 1 year 11. Pregnant or intending to become pregnant within the study period 12. Participating in another randomized controlled trial 13. Unable or unwilling to provide consent