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  • Title: [Double valve replacement with mechanical prostheses--an operative results].
    Author: Saigenji H, Toyohira H, Shimokawa S, Moriyama Y, Yamaoka A, Taira A.
    Journal: Nihon Kyobu Geka Gakkai Zasshi; 1995 Sep; 43(9):1600-4. PubMed ID: 8530844.
    Abstract:
    From January 1980 to December 1993, sixty eight patients underwent double valve replacement with mechanical prostheses. There were forty males and twenty-eight females with a mean age of 49.6 years (ranging from 30 to 68 years). They were classified 10 of NYHA class IV, 28 of class III. Twelve patients had previous cardiac operation. TR was identified in 20 patients. DVR was performed in 53 patients, DVR + TVR in one, DVR + TAP in 13. Twenty-two had St. Jude Medical (SJM) prostheses and 46 had Björk-Shiley (BS) prostheses. Early death before 30 postoperative days occurred in 6 patients (8.8%). MOF was the most frequent cause for early death. The risk factors for early death were the NYHA class IV, infective endocarditis, longer duration of cardiopulmonary bypass, necessity of postoperative IABP support. Other factors such as emergency operation, previous operation, tricuspid valve surgery, duration of aortic cross clamp time were not the predictors for early death. Cumulative follow-up was 284.0 patient years (PY). The rate of late survival was 74.1% (40 patients). Linearized rates of thromboembolism (TE), prosthetic valve endocarditis (PVE), hemolysis (H), reoperation (RO) were 2.8%/PY, 0.7%/PY, 0.4%/PY, 1.1/PY respectively. The free rates from TE, PVE, H, RO at nine years were 75.6%, 96.2%, 93.1%, and 89.8%, respectively. The cumulative survival rates at 14 years were 53.2% in over-all patients, and 64.3% in hospital survivors. We conclude that the early surgery is recommended for the patients with multiple valvular heart disease. The late outcomes of DVR with SJM or BS mechanical prosthesis is an acceptable one.
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