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Recent improvements in minimally invasive mitral valve repair techniques using contemporary robotic surgery have gained attention, but long-term outcomes are unknown, especially for complex disease such as severe multiscallop leaflet, myxomatous degeneration, or anterior leaflet involvement. Now, three cardiac surgeons from the Mayo Clinic, Rochester, have undertaken robotic mitral valve repair in 487 patients (56±11 years, 74% men) with severe, nonischemic, degenerative mitral regurgitation (MR) and normal left ventricular function. In general, standard triangular resection was used for posterior leaflet disease, whereas anterior leaflet prolapse was corrected using neochord resuspension. All repairs involved posterior annuloplasty. Bileaf…