[In vivo protective action of urinastatin during extracorporeal circulation]

A patient undergoing extracorporeal circulation is in the state of controlled shock. The object of the present study is to investigate the prophylactic effect of ulinastatin (6000 U.kg-1 or 12000 U.kg-1 during extracorporeal circulation by a randomized study. Although the ratio of lactic acid/pyruvic acid did not show significant changes, the increase was inhibited in 12000 U.kg-1 treated group. In 12000 U.kg-1 treated group, beta-glucuronidase reflecting the function of lysosomal membrane, as well fibronectin reflecting the endothelial function, were suppressed. The results of the present study indicate that administration of ulinastatin 12000 U.kg-1 is effective and useful for the organism.