29Jan 2024
Predictors of Conduction Block in TAVR Using VitaFlow Liberty™ Valves for Severe Native Aortic Regurgitation

Predictors of Conduction Block in TAVR Using VitaFlow Liberty™ Valves for Severe Native Aortic Regurgitation

The retrospective cohort study investigates predictors of new-onset conduction block post-transcatheter aortic valve replacement (TAVR) using VitaFlow Liberty™ valves in patients with severe pure native aortic regurgitation. Among 68 patients, those requiring postoperative permanent pacemaker implantation were associated with preoperative complete right bundle branch block (cRBBB) or first-degree atrioventricular block (AVB) and a non-tubular left ventricular outflow tract (LVOT). Deeper valve implantation depth and a greater angle of the aortic root independently predicted new-onset complete left bundle branch block (cLBBB) or high-grade AVB post-TAVR. These parameters may help predict conduction disorders in TAVR procedures using self-expanding valves.

  • #cardiology

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