Comparative Evaluation of Disk- and Tri Leaflet Valves in Left-Ventricular Assist Devices (LVAD)

Abstract

Two identical LVADs were equipped with different types of heart valve prostheses (Björk-Shiley disk and PU-valves) and tested in two simultaneous calf experiments for 28 days each. Noise levels, accelerations of the pump housing and thrombus formation were higher for the mechanical valve pump.