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  • Title: Results of reoperation for failure of cardiac bioprostheses.
    Author: Festa M, Renzulli A, Santè P, Micheletti E, Giannolo B, Palma G, Cotrufo M.
    Journal: Ital J Surg Sci; 1987; 17(3):213-7. PubMed ID: 3667203.
    Abstract:
    A ten-year experience with reoperations for failure of cardiac bioprostheses is reported. 362 patients were operated for valve replacement with 412 bioprostheses. There were 35 (9.64%) reoperations for valve failure. Mean time between operation and reoperation was of 64.4 months. Operative mortality was 14.28%: 3 patients died for cardiac and 2 for extra-cardiac causes. Long-term mortality after reoperation was 6.25%. Morphological examination of the explanted bioprostheses confirmed the cause of bioprosthetic valve failure, due to calcific degeneration in 88.88% of case, to post-endocarditic rupture in 5.55% and to prosthetic thrombosis in 2.77%. The importance of timing reoperation is stressed in order to reduce the operative mortality. The conditions suitable for implantation of bioprostheses are listed.
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