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  • Title: Late results of mitral valve repair with glutaraldehyde-treated autologous pericardium.
    Author: Shomura Y, Okada Y, Nasu M, Koyama T, Yuzaki M, Murashita T, Fukunaga N, Konishi Y.
    Journal: Ann Thorac Surg; 2013 Jun; 95(6):2000-5. PubMed ID: 23622701.
    Abstract:
    BACKGROUND: Mitral valve repair is an established surgical procedure for treating severe organic mitral regurgitation. The mechanisms of mitral regurgitation due to infective endocarditis include rheumatic disease and congenital diseases such as a lack of leaflet tissue, and thus additional material is required to create a functional coaptation surface. We review our experience with 139 patients who underwent mitral valve repair with glutaraldehyde-treated autologous pericardium to treat organic mitral regurgitation between March 1992 and November 2011. METHODS: Mitral valve disease mainly consisted of infective endocarditis in 51 patients (active, n = 32; healed, n = 19) and rheumatic disease in 47. This procedure was also applied to 12 patients who required reoperation after mitral valve repair for degenerative, congenital, or rheumatic mitral regurgitation. The mean follow-up was 4.5 ± 4.3 years (maximum 19.1). RESULTS: Actuarial survival at 10 years was 84% ± 5%. Eleven reoperations proceeded at a mean of 68 months after surgery. The causes of reoperation were rheumatic disease progression (n = 4), infection (n = 3), patch dehiscence (n = 2), progressive fibrosis of the remaining mitral valve tissue after infective endocarditis (n = 1), and patch tear (n = 1). Mitral valves were replaced in 8 patients and re-repaired in 3 patients. The autologous pericardium was not calcified at the time of reoperation. The rate of freedom from reoperation was 82% ± 7% at 10 years. CONCLUSIONS: Mitral valves that might otherwise require replacement can be durably and predictably repaired using glutaraldehyde-treated autologous pericardium.
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