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Circulation, Vol 88, 1746-1753, Copyright © 1993 by American Heart Association

ARTICLES

Mitral valve repair in rheumatic disease. The flexible solution

JM Bernal, JM Rabasa, FG Vilchez, JC Cagigas and JM Revuelta
Hospital Universitario Marques de Valdecilla, Universidad de Cantabria, Santander, Spain.

BACKGROUND. Mitral valve repair in rheumatic disease is technically more difficult, and there is little information on the long-term stability of this technique. METHODS AND RESULTS. From January 1975 to December 1990, 327 patients underwent mitral valve repair with the Duran flexible ring annuloplasty for rheumatic valve disease. Mean age was 45.4 +/- 12.6 years (range, 23 to 73 years). The techniques used for valve repair include a Duran flexible ring annuloplasty in all cases, commissurotomy in 272 (83.2%), papillary muscle splitting in 171 (52.3%), and subvalvular apparatus repair in 59 patients (18.0%). One hundred one patients required associated tricuspid valve surgery (30.8%). Hospital mortality was 3.36%, being lower for patients with isolated mitral valve repair (2.7%) than those with mitrotricuspid surgery (4.9%). Mean follow-up was 8.6 years (range, 1 to 17 years) and was 96.5% completed. Thirty-four patients required reoperation for severe mitral insufficiency in 12, mitral restenosis in 18, and aortic valve disease in 4. The actuarial curve free from reoperation for mitral cause at 16 years is 89.9 +/- 3.2%. Late mortality occurred in 42 patients (13.2%). Actuarial survival curve at 16 years is 84.0 +/- 3.2% for isolated mitral valve repair and 64.6 +/- 6.7% for mitrotricuspid patients. CONCLUSIONS. Mitral valve reconstruction with Duran flexible ring annuloplasty in rheumatic valve disease entails a low hospital mortality with satisfactory long-term clinical results.

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