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Stabilization of the posterior annulus seems to be a critical factor to achieve a stable mitral valve repair. To assess the benefit of softer mural annuloplasty, we analyzed results obtained with the flexible linear reducer.From 1985 to 1993, 120 patients, with pure mitral regurgitation, mainly degenerative, had a mitral reconstruction. Mean age was 64 ± 11 years and 74% of the patients were in New York Heart Association functional class III or IV.Hospital mortality was 3.3%. Mean follow-up was 56 ± 24 months. There were 23 late deaths; 10 valve-related including 7 sudden deaths. Two patients (1.7%) required a reoperation. Doppler echocardiographic studies revealed excellent valve function; 5-year freedom from significant regurgitation was 85.8% ± 5.4%. Mean mitral valve area was 2.76 ± 0.77 cm2. Although 105 patients were in class I or II, 23 patients were not functionally improved. Previous myocardial infarction and shorter deceleration time of early filling were risk factors for worsening functional disability.This support provides stable repair with excellent clinical and echographic results. Previous myocardial infarction and noncompliant left ventricle negatively influence outcome.