Based on the results from the MATTERHORN (A Multicenter, Randomized, Controlled Study to Assess Mitral Valve Reconstruction for Advanced Insufficiency of Functional or Ischemic Origin), transcatheter ...

The mitral valve allows blood to flow from the left atrium of the heart into the left ventricle. Mitral regurgitation occurs when the mitral valve leaks blood back into the left atrium.

4 The MITHRAS trial (Closure of Iatrogenic Atrial Septal Defects Following Transcatheter Mitral Valve Repair) is an investigator-initiated, single-center, randomized, open-label trial conducted at the ...