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  • Title: Experience with 813 aortic or mitral valve replacements with the Carpentier-Edwards bioprosthesis: Five year results.
    Author: Soots G, Pieronne A, Roux JP, Stankowiak C, Warembourg H, Watel A, Prat A, Segbeya A, Maatouk M, Crepin F.
    Journal: Eur Heart J; 1984 Oct; 5 Suppl D():87-94. PubMed ID: 6519107.
    Abstract:
    813 patients underwent aortic (AVR) or mitral valve replacement using the Carpentier-Edwards bioprosthesis from 1976 to 1983. Operative mortality was 5.49% for AVR and 4.59% for MVR. Late mortality and complications were classified using criteria described by the Stanford Group. Actuarial survival at 5 years was 87.9% +/- 2.7% for AVR and 91.1% +/- 1.4% in MVR. Thromboembolism occurred at low rates of 0.48% pt yr for AVR and 0.90% pt yr for MVR. 98.2% +/- 0.90% of AVR and 96.9% +/- 1.3% of MVR pts were free from thromboembolism at 5 years. The low incidence of thromboembolism during the early postoperative period played a role in the low rates observed in the complete study. There was no valve thrombosis. Anticoagulation with warfarin was used in 35% AVR and 75% MVR with rates of bleeding complications of 1.20% pt yr and 1.10% pt yr. Overall valve failure rate was 2.04% pt yr at 5 years for AVR and 1.55% pt yr for MVR. Rates of reoperation for tissue failure remained low (0.24% pt yr for AVR and 0.32% pt yr for MVR). The advantage of a low rate of thromboembolism was not outweighed by the specific problems of bioprosthesis at 5 years.
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