title: Cryohepatectomy for hepatocellular carcinoma--results in 84 patients.
abstract: BACKGROUND
  Recurrence after resection of hepatocellular carcinoma (HCC) is frequent and is a major cause of a poor outcome. Most recurrence may occur from the spreading of the original lesion via the intrahepatic portal vein. Cryosurgery has been used for the treatment of various tumors for decades. The aim of this study was to determine whether cryohepatectomy is potentially beneficial in reducing the recuurence and prolonging survival.
  
  
  METHODS
  The study included 84 patients who underwent cryohepatectomy, cryosurgery with liquid nitrogen (-196 degrees C) followed by the resection of the frozen tumor by conventional technique, for HCC and were closely follow-up after surgery. Recurrence and survival rates were calculated by the life-table method.
  
  
  RESULTS
  The postoperative course of cryohepatectomy in all of the 84 patients was uneventful, there being no operative mortality or severe complications. The 1-, 3-, and 5-year survival rates after cryohepatectomy were 98.7%, 83.9%, and 64.0%, respectively. The 1-, 3-, and 5-year recurrence rates after cryohepatectomy were 15.1%, 30.1% and 39.0%, respectively.
  
  
  CONCLUSIONS
  Cryohepatectomy for HCC is a safe procedure and may be potentially beneficial in reducing recurrence and prolonging survival. More time is needed to further define whether this procedure will improve long-term survival as compared with conventional resection.
authors.affiliation: Liver Cancer Institute, Zhong Shan Hospital, Medical Center of Fudan University, Shanghai 200032, China. xdxhou2000@yahoo.com.cn
authors.forename: Xin-Da
authors.initials: XD
authors.lastname: Zhou
authors.forename: Zhao-You
authors.initials: ZY
authors.lastname: Tang
authors.forename: Yao
authors.initials: Y
authors.lastname: Yu
authors.forename: Zeng-Chen
authors.initials: ZC
authors.lastname: Ma
authors.forename: Zhi-Quan
authors.initials: ZQ
authors.lastname: Wu
authors.forename: Bo-Heng
authors.initials: BH
authors.lastname: Zheng
mesh_terms: D000328:Adult; D000368:Aged; D006528:Carcinoma, Hepatocellular / Q000401:mortality / Q000601:surgery*; D015331:Cohort Studies; D003452:Cryosurgery; D005260:Female; D006498:Hepatectomy / Q000379:methods*; D006801:Humans; D008113:Liver Neoplasms / Q000401:mortality / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D015996:Survival Rate; D016896:Treatment Outcome