Abstract
Background— Durability assessment of mitral valve repair for degenerative valve incompetence is actually limited to reoperation as the primary indicator, with valve-related risk factors for late death as a secondary indicator. We assessed serial echocardiographic follow-up of valve function as an indicator of the durability of mitral valve repair. Methods and Results— In 242 patients who had undergone mitral valve repair for degenerative valve incompetence, echocardiographic follow-up of valve function, rate of reoperation, survival, and clinical outcome was studied. At 8 years after repair, clinical outcome was excellent, survival was 90.9±3.2%, freedom from reoperation was 94.2±2.3%, and freedom from anticoagulation bleeding and thromboembolic events was 90.4±2.7%. However, freedom from non-trivial mitral regurgitation (>1/4) was 94.3±1.6% at 1 month, 58.6±4.9% at 5 years, and 27.2±8.6% at 7 years. Freedom from severe mitral regurgitation (>2/4) was 98.3±0.9% at 1 month, 82.8±3.8% at 5 years and 71.1±7....
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