title: Surgical outcomes after laparoscopic or robotic liver resection in hepatocellular carcinoma: a propensity-score matched analysis with conventional open liver resection.
abstract: BACKGROUND
  This study was designed to compare perioperative and oncologic outcomes between minimally invasive liver resection (MILR) and conventional open liver resection (COLR) for hepatocellular carcinoma (HCC) using a propensity-score matched analysis.
  
  
  METHODS
  Ninety-nine patients who received MILR were matched with 198 patients treated with COLR out of 928 patients with HCC who received curative liver resection from 2002 to 2012. A multivariable logistic model based on factors related to the patient, tumor, and surgical procedure was used to estimate a propensity score.
  
  
  RESULTS
  The MILR group experienced significantly less intraoperative blood loss (mean: 389.55 vs 580.66 mL; P = 0.008), lower complication rates (13.1% vs 24.7%; P = 0.020), and a shorter length of hospital stay (mean: 8.40 vs 13.39 days; P < 0.001). The two groups did not differ significantly in disease-free (P = 0.701) or overall survival (P = 0.086).
  
  
  CONCLUSIONS
  MILR produced better perioperative and comparable oncologic outcomes than COLR for HCC. Copyright © 2015 John Wiley & Sons, Ltd.
authors.affiliation: Department of Surgery, Yonsei University College of Medicine, Seoul, Korea.|Robot & MIS Center, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Dai Hoon
authors.initials: DH
authors.lastname: Han
authors.affiliation: Department of Surgery, Yonsei University College of Medicine, Seoul, Korea.|Robot & MIS Center, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Sung Hoon
authors.initials: SH
authors.lastname: Choi
authors.affiliation: Department of Surgery, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Eun Jung
authors.initials: EJ
authors.lastname: Park
authors.affiliation: Department of Surgery, Yonsei University College of Medicine, Seoul, Korea.|Robot & MIS Center, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Dae Ryong
authors.initials: DR
authors.lastname: Kang
authors.affiliation: Department of Surgery, Yonsei University College of Medicine, Seoul, Korea.|Robot & MIS Center, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Gi Hong
authors.initials: GH
authors.lastname: Choi
authors.affiliation: Department of Surgery, Yonsei University College of Medicine, Seoul, Korea.|Robot & MIS Center, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Jin Sub
authors.initials: JS
authors.lastname: Choi
mesh_terms: D000368:Aged; D016063:Blood Loss, Surgical; D006528:Carcinoma, Hepatocellular / Q000601:surgery*; D016022:Case-Control Studies; D018572:Disease-Free Survival; D005260:Female; D006498:Hepatectomy / Q000379:methods; D006801:Humans; D010535:Laparoscopy / Q000379:methods*; D007902:Length of Stay; D008099:Liver / Q000601:surgery*; D008113:Liver Neoplasms / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D019060:Minimally Invasive Surgical Procedures / Q000379:methods; D015999:Multivariate Analysis; D057216:Propensity Score; D065287:Robotic Surgical Procedures / Q000379:methods*; D016896:Treatment Outcome
keywords: hepatectomy; hepatocellular carcinoma; laparoscopy; propensity score; robotics