Abstract
Among 28 consecutive patients with tricuspid valve replacement by using starr-Edwards 6520 disc prosthesis, 17 discharged patients were investigated about late complication. The actuarial survival rate of 8 years after surgery was 80% for discharged patients which seems to be a very satisfactory results. Major episodes of the thromboembolism both of the systemic and pulmonary were not observed. Hemodynamic study revealed that the patients who underwent MVR+TVR showed only a slight increase in cardiac output and remarkable increases in the mean right pressure during excercise in comparison with the patients who underwent MVR alone. The study of UCG showed that the movement of the mitral and tricuspid disc prosthesis was satisfactory. Therefore it was supposed that functional tricuspid stenosis occured during excercise in there patients.
