The Mitral Valve Repair Reference Center at The Mount Sinai Hospital is one of the most advanced in the country. The superiority of mitral valve repair over mitral valve replacement with a mechanical or bioprosthetic valve is well established. The Mitral Valve Repair Reference Center at Mount Sinai offers patients the highest percentage of mitral valve repair available anywhere in the world. In patients with mitral valve prolapse, our success rate in avoiding mitral valve replacement approaches 100%. We also have mitral valve repair expertise for patients with advanced cardiomyopathy. If patients have associated atrial fibrillation, we offer the latest in concomitant arrhythmia surgery, including the MAZE procedure. We also perform mitral valve repair surgery with minimally invasive approaches, when appropriate.