Transcatheter valve-in-ring implantation of a repositionable valve system for treatment of severe mitral regurgitation.

Abstract

Years after mitral valve surgery, progressive degeneration of reconstructed mitral valves or bioprostheses might lead to severe mitral valve regurgitation. Patients with significant comorbidity, or impaired left ventricular function are poor candidates for redo surgery at an acceptable risk at that later time point.