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THE JOURNAL OF CARDIOVASCULAR SURGERY
Rivista di Chirurgia Cardiaca, Vascolare e Toracica
Indexed/Abstracted in: BIOSIS Previews, Current Contents/Clinical Medicine, EMBASE, PubMed/MEDLINE, Science Citation Index Expanded (SciSearch), Scopus
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ORIGINAL ARTICLES CARDIAC PAPERS
The Journal of Cardiovascular Surgery 2000 Aprile;41(2):187-92
Early and late results of mitral valve repair for mitral valve regurgitation. Significant risk factors of reoperation
Kuwaki K., Kiyofumi M., Tsukamoto M., Abe T.
From the Departments of Thoracic and Cardiovascular Surgery Sapporo Medical University School of Medicine Sapporo, Hokkaido, Japan
Background. Mitral valve repair for mitral valve regurgitation has many advantages over mitral valve replacement. However, durability and reoperation after mitral valve repair still remain major problems. We examined the outcome of mitral valve repair for mitral valve regurgitation and analyzed several pre- and intraoperative potential risk factors to determine the significant risk factors of reoperation.
Methods. From February 1981 to November 1996, 86 patients underwent mitral valve repair for mitral regurgitation or combined mitral regurgitation and stenosis. The mean age was 53 years, and 88.4% were New York Heart Association class III or IV. The causes of mitral valve disease were degenerative disease in 53 patients, rheumatic disease in 15, infective endocarditis in 11, and ischemic disease in 7. There were 2 early and 8 late deaths.
Results. Actuarial overall survival including early death at 10 years was 83.2±6.1%, freedom from reoperation was 86.8±5.3%, freedom from thromboembolism was 90.9±6.2%, and freedom from infective endocarditis was 98.5±1.5%. There was no bleeding event. At the last follow-up, most patients were in New York Heart Association class I or II. Prolapse of anterior leaflet and rheumatic mitral regurgitation were identified as independent predictors for reoperation.
Conclusions. The repair techniques for anterior leaflet prolapse and patient selection in rheumatic mitral disease are important for improving long-term results of mitral valve repair for mitral regurgitation.