There are two methods of V-V bypasses during anhepatic phase. The one is the forced circulation method (Group I) and the other is the circulation without pump using heparin coating tubes (Group II). In this report we studied the differences between these two methods. And the results were as follows: 1) In the Group I, the hemodynamics were kept in stable during bypass. 2) In the Group II, the hemodynamics were markedly unstable and they showed the cardiac failure. Therefore, it was suggested that the venous return was disturbed in the Group II. We conclude that the forced circulation method using pump may be the better way in the V-V bypass method during anhepatic phase of the orthotopic liver transplantation.
