Abstract

Evaluations of valvular function by cineradio graphy of tha Björk-Shiley prosthetic vavle and Omnicarbon prosthetic valve. Evaluation and comparison of valve function of Bjshikawa, rk-Shiley Convexo Concave prostheticvalve (B-S CC valve), Bjshikawa, rk-Shiley Monos trut prosthetic valva (B-S MO valve) and Omni carbon prosthetic valve (OC valve)was performed using cineradiography.The opening angle of the B-S CC valve AVR group(7 cases) was 59. 8±6.3°, MVR group (9 cases) 59.5±5.0°, the B-S MO valve AVR group (6 cases) was 71.8±2.9°, MVR group (9 cases) was 71.0±4.5°and the OC valve AVR group (3 cases) was 65.8±11.4°and MVR group (5 cases) was 62.5±9.9°. With the OC valve there were 2 AVR case (66%), 4 MVR case (80%) in which the valve seemed to catch then open another 5-15°and the designed opening of 80° was not always obtained. The opening and closing time of all three valves was approximately 0.07-0.09 sesonds, on average.