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Long Term Outcome and Prognostic Factors for Large Hepatocellular Carcinoma (10 cm or more) after Surgical Resection

¹ Hepatobiliary Surgery and Liver Transplantation, Asian Centre for Liver Diseases and Transplantation, Singapore, Singapore
² Respiratory Medicine & Critical Care, Asian Centre for Liver Diseases and Transplantation, Singapore, Singapore
³ Hepatology, Asian Centre for Liver Diseases and Transplantation, Singapore, Singapore

Correspondence: Address correspondence and reprint requests to: Durgatosh Pandey, MS, DNB, M.Ch; E-mail: durgatosh{at}yahoo.co.in

Background: Surgical resection is the standard treatment for hepatocellular carcinoma (HCC). However, the role of surgery in treatment of large tumors (10 cm or more) is controversial. We have analyzed, in a single centre, the long-term outcome associated with surgical resection in patients with such large tumors.

Methods: We retrospectively investigated 166 patients who had undergone surgical resection between July 1995 and December 2006 because of large (10 cm or more) HCC. Survival analysis was done using the Kaplan-Meier method. Prognostic factors were evaluated using univariate and multivariate analyses.

Results: Of the 166 patients evaluated, 80% were associated with viral hepatitis and 48.2% had cirrhosis. The majority of patients underwent a major hepatectomy (48.2% had four or more segments resected and 9% had additional organ resection). The postoperative mortality was 3%. The median survival in our study was 20 months, with an actuarial 5-year and 10-year overall survival of 28.6% and 25.6%, respectively. Of these patients, 60% had additional treatment in the form of transarterial chemoembolization, radiofrequency ablation or both. On multivariate analysis, vascular invasion (P < 0.001), cirrhosis (P = 0.028), and satellite lesions/multicentricity (P = 0.006) were significant prognostic factors influencing survival. The patients who had none of these three risk factors had 5-year and 10-year overall survivals of 57.7% each, compared with 22.5% and 19.3%, respectively, for those with at least one risk factor (P < 0.001).

Conclusions: Surgical resection for those with large HCC can be safely performed with a reasonable long-term survival. For tumors with poor prognostic factors, there is a pressing need for effective adjuvant therapy.

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