Abstract
The effect of MD805, a synthetic thrombin inhibitor as anticoagulant after implantation of left ventricular assist device was investigated. Dose of the ND805 was 20mg/day and 50mg/day. Prothrombin time and partial thromboplastin time prolonged in MD805 group more than no MD805 group. There was no difference between MD805 group and no MD805 group on the changes of platelets, fibrinogen, antithrombin-III and FDP. In MD805 group, infarct size of the kidney was decreased and there was few platelets on the blood contact surface of the pump. It is expected that MD805 reduce the dose of heparin.