Variations in hepatic functional reserve in the 4 patient subgroups. The patients with pancreatic cancer with liver metastases was the first group to recover to normal liver function, while the HBV+ group was the last. *P<0.05. IRE, irreversible electroporation; PA Ca; HCC, hepatocellular carcinoma; HBV+, Hepatitis B positive; HBV-, Hepatitis B negative.