[Mitral valve repair for XXXX : likelihood of success, early and-long term results at 20 years].

@entity1 @entity340 @entity339
BACKGROUND: The 2014 Guidelines for the Management of @entity1 with @entity340 require to know the probability of success and operative mortality of Mitral Valve Repair (MVR) for @entity339 ( @entity339 ) at a given institution. AIM: To assess the probability of success, operative mortality and long-term results of MVR for @entity339 . @entity1 AND METHODS: The database of the Cardiovascular Surgery Service was reviewed for the period December 1991 to December 2013. Long-term survival information was obtained from death certificate records of the Chilean Identification Service. RESULTS: One hundred forty seven @entity1 with @entity339 were identified, all operated by one author (RZ). In 28 (19%) the mitral valve was replaced, including three @entity1 in whom a MVR was intended without success. A successful MVR was performed in 119 @entity1 (81%). The probability of a successful MVR was 97.5% (119 of 122). Prolapsed posterior leaflet was present in 81% and annulus dilatation in 60% of cases. The most frequent surgical procedures were quadrilateral resection (83%) and chordal transfer (13%). A mitral annuloplasty was performed in 92% of cases. Operative mortality was 0.8%. At the end of a 9.9 (0 - 22.7) years follow-up, 87 @entity1 (73%) were alive and mean survival was 16.9 years. Survival rates at 5, 10, 15 and 20 years were 91%, 78%, 71% and 50%, respectively. Six @entity1 were re-operated, due to mitral @entity340 in three. Mean re-operation free survival was 21.4 years. Echocardiographic follow-up was 75% completed at an average of 64 months; 84% of cases had no or only 1+ @entity339 . CONCLUSIONS: In our experience, MVR for @entity339 had an operative mortality below 1% and a probability of success greater than 95%, with excellent long-term results.
