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Surgical Resection Versus Radiofrequency Ablation for Single Hepatocellular Carcinoma ≤ 2 cm in a Propensity Score Model

Liu, Po-Hong MD; Hsu, Chia-Yang MD, MPH; Hsia, Cheng-Yuan MD; Lee, Yun-Hsuan MD; Huang, Yi-Hsiang MD, PhD; Chiou, Yi-You MD; Lin, Han-Chieh MD; Huo, Teh-Ia MD

Erratum

In the March 2016 issue of Annals of Surgery in the article by Liu et al, “Surgical Resection Versus Radiofrequency Ablation for Single Hepatocellular Carcinoma ≤2 cm in a Propensity Score Model,” the first two author affiliations were printed incorrectly. The correct author affiliation footnote is: From the * Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; Faculty of Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan.”

Annals of Surgery. 263(5):e77, May 2016.

doi: 10.1097/SLA.0000000000001178
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Objectives: To evaluate the efficacy of surgical resection (SR) and radiofrequency ablation (RFA) for single hepatocellular carcinoma (HCC) 2 cm or less.

Background: The optimal management for Barcelona Clínic Liver Cancer (BCLC) very early-stage HCC is undetermined.

Methods: Between 2002 and 2013, a total of 237 (SR, 109; RFA, 128) patients with BCLC very early-stage HCC were enrolled. Their overall survival (OS) and recurrence-free survival (RFS) were compared. Propensity score matching analysis identified 79 matched pairs of patients to compare outcomes.

Results: At baseline, patients with SR were younger and had larger tumors (both P < 0.05). The 5-year OS rates were 81% versus 76% (P = 0.136), whereas 5-year RFS rates were 49% versus 24% (P < 0.001) for SR and RFA groups, respectively. In the propensity model, the baseline variables were well balanced between 2 groups. Surgical resection was significantly associated with better OS and RFS compared with RFA; the 5-year OS rates were 80% versus 66% (P = 0.034), and 5-year RFS rates were 48% versus 18% (P < 0.001) for SR and RFA groups, respectively. The Cox proportional hazards model identified RFA as an independent predictor for mortality and tumor recurrence in the propensity model (hazard ratio, 2.120 and 2.421, respectively; both P < 0.05). Patients with recurrent HCC had inferior prognosis compared with patients without recurrence (P = 0.001). However, the survival after recurrence was similar between patients initially treated with SR or RFA (P = 0.415).

Conclusions: Surgical resection provides better long-term OS and RFS compared with RFA in patients with BCLC very early-stage HCC. Surgical resection should be considered as the first-line treatment for these patients.

*Faculty of Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan

Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan

Department of Biostatistics, UCLA, Los Angeles, CA

§Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan

Institute of Clinical Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan

||Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan

**Institute of Pharmacology, National Yang-Ming University School of Medicine, Taipei, Taiwan.

Reprints: Teh-Ia Huo, MD, Professor of Medicine, Division of Gastroenterology, Department of Medicine, Taipei Veterans General Hospital, No. 201, Sec. 2, Shipai Rd, Taipei 11217, Taiwan. E-mail: tihuo@vghtpe.gov.tw.

Supported by grants from the Center of Excellence for Cancer Research at Taipei Veterans General Hospital (MOHW103-TD-B-111-02), Taiwan, from Taipei Veterans General Hospital (V104C-008), Taipei, Taiwan, and from the Ministry of Education, Aiming for the Top University Plan (103AC-P618), Taiwan.

Disclosure: The authors declare no conflicts of interest.

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