Henry Ford Hospital Medical Journal


Because of dissatisfaction with certain features of the currently available ball and disc valve prostheses when implanted in patients with mitral stenosis and a small volume left ventricle, a full orifice discoid valve has been designed which avoids many of these shortcomings. The valve has been tested mechanically in a pulse duplicator and compared lo existing prostheses. High speed cine studies were used to evaluate turbulence. Implantation was carried out in animals. Evaluation by these various methods indicates that the valve is satisfactory for human implantation and may have significant advantages over other artificial valves when used in patients with mitral stenosis and small left ventricles.