Survival comparison between surgical resection and radiofrequency ablation for patients in BCLC very early/early stage hepatocellular carcinoma

Background & Aims: To compare the survival between surgical resection (SR) and radiofrequency ablation (RFA) in patients with hepatocellular carcinoma (HCC) in Barcelona Clinic Liver Cancer (BCLC) very early/early stage. Methods: Between 2002 and 2009, patients with newly diagnosed BCLC very early/early stage HCC who received SR or RFA were enrolled. Medical records were reviewed. The cumulative overall survival (OS) and disease-free survival (DFS) were compared. Results: A total of 605 patients, including 143 very early (SR: 52; RFA: 91) and 462 early stages (SR: 208; RFA: 254) were enrolled. For very early stage, the 3- and 5-year OS rates were 98% and 91.5% for SR, and 80.3% and 72% for RFA, respectively (p = 0.073). The 3- and 5-year DFS rates were 62.1% and 40.7% for SR, and 39.8% and 29.3% for RFA, respectively (p = 0.006). Either multiple adjustment by Cox model or match analysis based on propensity score showed no significant difference in OS between the two groups. For early stage, the 3- and 5-year OS rates were 87.8% and 77.2% for SR, and 73.5% and 57.4% for RFA, respectively (p = 0.001). The 3- and 5-year DFS rates were 59.9% and 50.8% for SR, and 28.3% and 14.1% for RFA, respectively (p <0.001). After adjusting covariates, there was no significant difference in OS between the two groups. However, SR was superior to RFA in DFS. Conclusions: For HCC patients in BCLC very early/early stage, there was no significant difference in OS between SR and RFA. However, SR yielded better DFS than RFA. (C) 2011 European Association for the Study of the Liver. Published by Elsevier B.V. All rights reserved.