Clinical Research Directory

Inclusion Criteria: * Subject has at least one of these conduction disturbances: 1. Symptomatic (or hemodynamically significant) bradycardia or symptomatic persistent atrioventricular block including first-degree and Mobitz I (Wenckebach) or Mobitz type II atrioventricular bock 2. High-grade atrioventricular block 3. Third-degree atrioventricular block * Subject has undergone TAVR (any valve system) in the last four weeks * Subject is receiving a first-time pacemaker implant * Subject's most recent documented ejection fraction (by any method) within the past 90 days prior to study enrollment is \> 50% (≥45% if visually estimated at the time of enrollment) * Subject is a male or female at least 18 years old at the time of consent * Subject is able to receive a left sided pectoral implant Exclusion Criteria: * Subject has ever had a previous or has an existing implantable pulse generator (IPG), implantable cardiac defibrillator (ICD) or biventricular (BiV) implant * Subject has more than mild para-valvular regurgitation following TAVR implantation. * Subject has LVEF \< 45% if visually estimated at the time of enrollment * Subject is indicated for a biventricular pacing device (CRT-P or CRT-D). * Subject is enrolled in a concurrent study that may confound the results of this study * Subject has a mechanical heart valve * Subject is pregnant, or of childbearing potential and not on a reliable form of birth control * Subject status post heart transplant * Subject life expectancy less than 2 years