[Course of the first one hundred bioprostheses implanted between 1975 and 1977. A 10-year follow-up study]

Long-term performance of the first one hundred bioprostheses (BP) implanted was evaluated in 100 patients (pts) surviving isolated aortic valve replacement, mitral valve replacement and tricuspid replacement from October 1975 to March 1978. Follow-up was always more than 10 years. Cumulative duration of follow-up was 7,048 months. Follow-up ranged from 112 to 139 months. Overall late mortality was 16.13 thromboembolic episodes occurred in 11 pts. Reoperation was performed in 14 pts due to primary tissue failure in 11 pts. 64 patients were free from mortality and valve-related reoperation.