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Hiroshi Imamura, MD, PhD; Yasuji Seyama, MD; Norihiro Kokudo, MD, PhD; Atsushi Maema, MD, PhD; Yasuhiko Sugawara, MD, PhD; Keiji Sano, MD, PhD; Tadatoshi Takayama, MD, PhD; Masatoshi Makuuchi, MD, PhD

Arch Surg. 2003;138:1198-1206.

Background  Despite improvements in diagnostic and surgical techniques, operative mortality associated with liver resection is still greater than 2% in most of the recent studies.

Hypothesis  By refining preoperative and postoperative care and surgical skills, liver resection mortality can be decreased to zero.

Design  Retrospective cohort study to analyze postoperative morbidity and mortality in 1056 consecutive hepatectomies performed at a single medical center during 8 years.

Setting  Tertiary referral center.

Patients  A total of 915 patients who underwent 1056 consecutive hepatic resections: 532 for hepatocellular carcinoma, 262 for other primary and secondary liver malignancies, 57 for biliary tract malignancy, 174 for living donor liver transplantation, and 31 for other benign diseases.

Main Outcome Measures  Operative mortality and morbidity rates.

Results  No operative mortality occurred. Major complications, as defined by postoperative radiologic or surgical intervention, occurred in 3% of patients with hepatocellular carcinoma, 8% with other liver malignancy, 28% with biliary malignancy, and 5% of living donor liver transplantation donors. Using multiple logistic regression, independent risk factors associated with major complications were operative blood loss of 1000 mL or greater for hepatocellular carcinoma and total bilirubin level of 1.0 mg/dL or greater (17 µmol/L) and operative time greater than 6 hours for other liver malignancy. No independent factors associated with major complications were identified for biliary malignancy or for living donor liver transplantation donors among the variables investigated in this study.

Conclusions  Liver resection can be performed without mortality provided that it is carried out in a high-volume medical center by well-trained hepatobiliary surgeons paying meticulous attention to the balance between the liver functional reserve and the volume of liver to be removed.

From the Division of Hepato-Biliary-Pancreatic Surgery and Artificial Organ and Transplantation, Department of Surgery, Graduate School of Medicine, University of Tokyo, Tokyo, Japan.

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