The purpose of the study is to demonstrate the long term safety and effectiveness of the Carpentier-Edwards® PERIMOUNT Magna Mitral Valves in patients undergoing mitral valve replacement with or without concomitant procedures requiring cardiopulmonary bypass.

This is a prospective, single-arm, multi-center study to be conducted in the US and outside the US (OUS). Approximately 250 subjects are planned to be enrolled to obtain long term data from 101 subjects at 8 years post implant of the Magna mitral valve. Of these 250, approximately 38 (15%) are anticipated to be simultaneous aortic and mitral replacements. Subject enrollment will not start in the US before obtaining FDA approval of this post market study. Assessments will be obtained for the preoperative and operative visits, and postoperatively at discharge, six months, 1-year and annually thereafter for a minimum of 8 years. Subject's demographics (date of birth, sex), physical assessment (heart rate, height, weight, systolic and diastolic blood pressures), New York Heart Association (NYHA) functional class, cardiac rhythm, cardiovascular medical history/risk factors, non-cardiovascular conditions, previous cardiovascular procedures/interventions, antithromboembolic and lipid lowering medications and coagulation profile. Blood data will be collected from each subject preoperatively, at 6 months and annually post implant through 8 year follow-ups. Echocardiographic evaluation required for each subject preoperatively, at discharge, 6 months (between 3-6 months), 1, 2, 4, 6, and 8 year follow-ups. A QOL survey (EQ-5D) will be completed by the subject pre-operatively and at the 6-month follow-up visit.