Objective To evaluate the short-term efficacy of small-for-size liver transplantation and auxiliary partial orthotopic liver transplantation(APOLT) with small-for-size graft for porcine acute hepatic failure.

Experiment on auxiliary heterotopic partial liver transplantation to treat acute liver failure;

Preparation of acute ischemic liver failure and the effect of auxiliary heterotopic partial liver transplantation in pigs;

Heterotopic auxiliary part liver transplantation is better than ortho-topic liver transplantation (OLT) and auxiliary partial orthotopic liver transplantation ( APOLT) ,without resecting liver of host,no wholly blocking inferior vena and portal vein,no anhepatic phase, and little change in haemodynamic.

Fabrication of auxiliary partial liver transplantation model and comparative study;