The Hall-Kaster Cardiac Disc Valve Prosthesis: Experimental and Clinical Results

Publisher Website
Google Scholar
Abstract
The functional principle of the new Hall-Kaster pivoting cardiac disc valve is reported. Results from experiments with dogs suggested favorable valve hemodynamics. Clinical results in humans after aortic valve replacement were excellent. Intra-operative and post-operative studies revealed low transvalvular pressure gradients and large effective orifice flow areas. In a prospectively randomized study against patients receiving Bjork-Shiley aortic valves, intraoperative measurements showed a better hemodynamic performance of the Hall-Kaster valve than of the Bjork-Shiley valves of corresponding sizes.