Mitral Regurgitation in Transcatheter Aortic Valve Replacement.

The article discusses research done on the prognostic significance of mitral regurgitation (MR) in patients undergoing transcatheter aortic valve replacement (TAVR). It references the study "Interplay Between Mitral Regurgitation and Transcatheter Aortic Valve Replacement With the Corevalve Revalving System: A Multicenter Registry" by F. Bedogni and colleagues, published within the issue. The complexity of multivalvular disease is also explored.