title: Role of the width of the surgical margin in a hepatectomy for small hepatocellular carcinomas eligible for percutaneous local ablative therapy.
abstract: BACKGROUND
  There is intense clinical interest to determine whether a wide surgical margin is required to improve postoperative recurrence after locoregional therapy for small hepatocellular carcinomas (HCCs).
  
  
  METHODS
  From 1996 to 2003, 117 patients with small HCCs, and also matching the criteria for local ablation therapy (up to 3 nodules </=30 mm in size), were analyzed retrospectively to determine the prognostic factors affecting postoperative recurrence.
  
  
  RESULTS
  The number of tumors and the surgical margin status were independent factors influencing the disease-free survival. The wide surgical margin status (>/=10 mm) provided a favorable disease-free survival in the 39 patients with negative hepatitis C virus infection (P = .0020) in the 59 patients with larger tumor size (>/=25 mm) (P = .0265) and in the 60 younger patients (</=63 y) (P = .0103).
  
  
  CONCLUSIONS
  A surgical margin (>/=10 mm) should be secured in young patients without hepatitis C virus infection and/or a tumor size of 25 mm or larger because long-term disease-free survival could be expected after a macroscopic curative hepatectomy for small HCCs.
authors.affiliation: Department of Hepatobiliary and Pancreatic Surgery, National Cancer Center Central Hospital, 5-1-1 Tsukiji, Chuo-ku, Tokyo 104-0045, Japan. kshimada@ncc.go.jp
authors.forename: Kazuaki
authors.initials: K
authors.lastname: Shimada
authors.forename: Yoshihiro
authors.initials: Y
authors.lastname: Sakamoto
authors.forename: Minoru
authors.initials: M
authors.lastname: Esaki
authors.forename: Tomoo
authors.initials: T
authors.lastname: Kosuge
mesh_terms: D000328:Adult; D000368:Aged; D006528:Carcinoma, Hepatocellular / Q000473:pathology / Q000601:surgery* / Q000628:therapy; D017115:Catheter Ablation; D016461:Chemoembolization, Therapeutic; D000431:Ethanol / Q000008:administration & dosage; D005260:Female; D006498:Hepatectomy / Q000379:methods; D006801:Humans; D015552:Injections, Intralesional; D008113:Liver Neoplasms / Q000473:pathology / Q000601:surgery* / Q000628:therapy; D008297:Male; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local; D011379:Prognosis
chemical_list: D000431:Ethanol