Korean J Hepatobiliary Pancreat Surg.  2016 Feb;20(1):1-7. 10.14701/kjhbps.2016.20.1.1.

Outcomes and recurrence pattern after non-anatomic liver resection for solitary hepatocellular carcinomas

Affiliations
  • 1Department of Surgery, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, Korea. cjmdr@knu.ac.kr

Abstract

BACKGROUNDS/AIMS
Anatomic resection (AR) is preferred for eradicating portal tributaries in patients with hepatocellular carcinoma (HCC). However, the extent of resection is influenced by underlying liver disease and tumor location. We compared the surgical outcomes and recurrence pattern between non-anatomic resection (NR) and AR.
METHODS
From March 2009 to February 2012, 184 patients underwent surgical resection for HCC. Among these, 79 patients who were primarily treated for a single tumor without rupture or macroscopic vascular invasion were enrolled. The patients were divided into 2 groups based on the extent of resection: AR (n=31) or NR (n=48). We compared the clinical characteristics, overall survival, disease-free survival, pattern of recurrence, and biochemical liver functions during the perioperative period between the two groups.
RESULTS
The extent of resection had no significant effect on overall or disease-free survival rates. The overall 1- and 3-year survival rates were 97% and 82% in the AR group, and 96% and 89% in the NR group, respectively (p=0.49). In addition, the respective 1- and 3-year disease-free survival rates for the AR and NR groups were 84% and 63%, and 85% and 65%, respectively (p=0.94). On the other hand, the presence of hepatic cirrhosis and a tumor size of >5 cm were significant risk factors for recurrence according to multivariate analysis (p<0.001 and p=0.003, respectively). The frequency of early recurrence, the first site of recurrence, and the pattern of intrahepatic recurrence were similar between the 2 groups (p=0.419, p=0.210, and p=0.734, respectively); in addition, the frequency of marginal recurrence did not differ between the 2 groups (1 patient in the AR group and 2 in the NR group). The NR group showed better postoperative liver function than the AR group.
CONCLUSIONS
Non-anatomic liver resection can be a safe and efficient treatment for patients with a solitary HCC without rupture or gross vascular invasion.

Keyword

Hepatocellular carcinoma; Resection; Recurrence pattern; Disease-free survival

MeSH Terms

Carcinoma, Hepatocellular*
Disease-Free Survival
Hand
Humans
Liver Cirrhosis
Liver Diseases
Liver*
Multivariate Analysis
Perioperative Period
Recurrence*
Risk Factors
Rupture
Survival Rate

Figure

  • Fig. 1 Cumulative survival curves of all 79 patients. The overall survival rates (A) and disease-free survival rates (B) were 97%, 86% at 1 year and 85%, 64% at 3 years, respectively.

  • Fig. 2 Survival curves showing the overall survival (A) and disease-free survival (B) after curative surgery for HCC in the anatomic resection (AR) group (solid line) and non-anatomic resection (NR) group (dotted line).

  • Fig. 3 Biochemical liver function parameters of the anatomic resection (AR) group (solid line) and non-anatomic resection (NR) group during the perioperative period. Asterisks indicated p-value <0.05.


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