Pooled Analysis of Valve-in-Valve and Valve-in-Ring Transcatheter Mitral Valve Replacement Using the SAPIEN Valve.
BACKGROUND Transcatheter mitral valve replacement (TMVR) using the Sapien (Edwards Lifesciences, Irvine, CA) transcatheter heart valve has become the preferred treatment for high-risk patients with failed mitral bioprosthetic valves or prior surgical mitral valve repairs. Differences in anatomy and procedural complexit...