Journal of Gastrointestinal Surgery

, Volume 12, Issue 2, pp 327–337

Prognostic Factors and Recurrence of Small Hepatocellular Carcinoma after Hepatic Resection or Microwave Ablation: A Retrospective Study

  • Zhi Li Wang
  • Ping Liang
  • Bao Wei Dong
  • Xiao Ling Yu
  • De Jiang Yu
Article

DOI: 10.1007/s11605-007-0310-0

Cite this article as:
Wang, Z.L., Liang, P., Dong, B.W. et al. J Gastrointest Surg (2008) 12: 327. doi:10.1007/s11605-007-0310-0

Abstract

Purpose

This study aims to analyze the long-term therapeutic results of small HCC less than 5 cm in diameter after microwave ablation (MA) or hepatic resection (HR) and choose factors that could predict metastasis and recurrence of small HCC.

Materials and Methods

The metastasis and recurrence of 194 patients with one HCC less than 5 cm in diameter who underwent curative HR or MA between January 1995 and December 2004 were reviewed retrospectively; immunohistochemistry was used to analyze the expressions of VEGF, bFGF, and c-Met in HCC tissues. Posttreatment prognostic factors were evaluated by multivariate analysis using Cox’s proportional hazards model. The variables included the expressions of these three proteins in HCC tissues, the clinical and pathologic characteristics of the patients.

Results

The retrospective study showed that 1-, 3-, and 5-year disease-free survival rates of patients with single HCC of diameter <5 cm were 71.3, 57.0 and 32.5%, respectively. Furthermore, 1-, 3-, and 5-year disease-free survival rates of the patients in MA group and resection group were 72.8, 54.0 and 33.0%; 68.5, 60.0, and 25.6%, respectively. There was no significant difference in disease-free survival rates between these two groups. The result of multivariate analysis showed that differentiation degree of HCC and the expressions of VEGF and c-Met in HCC tissues could be as the independent prognostic factors affecting metastasis and recurrence in patients with small HCC, whereas the methods of therapy had no impact on prognosis.

Conclusions

The metastasis and recurrence rate after MA is similar to that after HR, and the methods of therapy do not affect the prognosis of small HCC. The metastasis and recurrence of patients with small HCC will differ depending on tumor differentiation, expressions of VEGF and c-Met in HCC tissues.

Keywords

Small hepatocellular carcinoma (HCC)Metastasis and recurrenceMicrowave ablation (MW)Hepatic resection (HR)VEGFc-Met

Copyright information

© The Society for Surgery of the Alimentary Tract 2007

Authors and Affiliations

  • Zhi Li Wang
    • 1
  • Ping Liang
    • 1
  • Bao Wei Dong
    • 1
  • Xiao Ling Yu
    • 1
  • De Jiang Yu
    • 1
  1. 1.Department of UltrasoundChinese People’s Liberation Army General HospitalBeijingPeople’s Republic of China