GPT and portal hypertension: Other preoperative parameters such as age, American Society of Anesthesiologists category (ASA) grade, hepatitis B surface antigen(HBsAg), hepatitis B e antigen (HBeAg), HBV DNA-positive (more than 2000 U/mL), aspartate aminotransferase(AST), alanine aminotransferase (ALT),hemoglobin, platelets, Ishak score, tumor size, tumor number, rate of antiviral treatment before operation and portal hypertension were not significantly different among the four groups.