[Thrombosis prophylaxis using plasmin and its combination with alpha-adrenoreceptor antagonists].

Using two models of experimental thrombosis (arterio-venous shunt and Wessler's model) the effect of plasmin and its combination with alpha-adrenoreceptor antagonists on the formation of thrombus was studied on white rats. It was established that the efficacy of prophylactic of thrombosis by plasmin only was low: middle ball of thrombosis was 2.5-3.0. The combination of plasmin with alpha-adrenoblockers dihydroergotoxine or prazosin under these conditions is most efficient against the formation of thrombus (middle ball of thrombus in this case was 0.8-1.1). Prazosin under certain conditions have some advantages.