title: Survey results on daily practice in open and laparoscopic liver resections from 27 centers participating in the second International Consensus Conference.
abstract: BACKGROUND
  The proportions of laparoscopic approach and surgical procedures in liver resections have been unknown in clinical practice. The aim of this study is to investigate liver resections performed in select centers worldwide and analyze the ratios of laparoscopic approach, major liver resection, and left lateral sectionectomy.
  
  
  METHODS
  A questionnaire-based survey on proportions of liver resections performed between 2008 and 2013 was conducted. The data collected from 27 respondents, which joined the conference committee of the second International Consensus Conference on Laparoscopic Liver Resection (LLR), were analyzed by the working group.
  
  
  RESULTS
  Between 2008 and 2013, 11,712 liver resections were performed in the 27 centers. Of all of these liver resections, laparoscopic approach was selected in 32.1% (n = 3,765), whereas open approach was selected in 67.9% (n = 7,947). The ratio of laparoscopic approach taken in all left lateral sectionectomy (61.8%) is higher, compared with that of laparoscopic approach taken in all liver resections (32.1%), in all minor liver resections (35.9%), and in all major liver resections (24.8%).
  
  
  CONCLUSIONS
  Laparoscopic approach was clinically chosen for approximately 30% of all liver resections and for more than 60% of left lateral sectionectomy in selected centers worldwide.
authors.affiliation: Hepato-Biliary-Pancreatic Surgery Division, Department of Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
authors.forename: Yoshikuni
authors.initials: Y
authors.lastname: Kawaguchi
authors.affiliation: Hepato-Biliary-Pancreatic Surgery Division, Department of Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
authors.forename: Kiyoshi
authors.initials: K
authors.lastname: Hasegawa
authors.affiliation: Department of Surgery, Ageo Central General Hospital, Ageo, Saitama, Japan.
authors.forename: Go
authors.initials: G
authors.lastname: Wakabayashi
authors.affiliation: Department of Hepato-Biliary-Pancreatic Surgery, Hepatobiliary Center-Paul Brousse Hospital, Paris, France.
authors.forename: Daniel
authors.initials: D
authors.lastname: Cherqui
authors.affiliation: Department of Surgery, University of Pittsburgh, Pittsburgh, USA.
authors.forename: David A
authors.initials: DA
authors.lastname: Geller
authors.affiliation: Tulane Transplant Institute, Tulane Medical Center, and Louisiana State University and Medical Center, New Orleans, USA.
authors.forename: Joseph F
authors.initials: JF
authors.lastname: Buell
authors.affiliation: Department of Surgery, Toho University School of Medicine, Tokyo, Japan.
authors.forename: Hironori
authors.initials: H
authors.lastname: Kaneko
authors.affiliation: Department of Surgery, Seoul National University Bundang Hospital, Seongnam-si, South Korea.
authors.forename: Ho-Seong
authors.initials: HS
authors.lastname: Han
authors.affiliation: Department of Surgery, Washington University School of Medicine, St. Louis, USA.
authors.forename: Steven M
authors.initials: SM
authors.lastname: Strasberg
authors.affiliation: Hepato-Biliary-Pancreatic Surgery Division, Department of Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan. kokudo-2su@h.u-tokyo.ac.jp.
authors.forename: Norihiro
authors.initials: N
authors.lastname: Kokudo
mesh_terms: D003245:Consensus Statements as Topic; D014943:Global Health; D006498:Hepatectomy / Q000379:methods*; D006801:Humans; D010535:Laparoscopy / Q000379:methods*; D007813:Laparotomy / Q000379:methods*; D008107:Liver Diseases / Q000453:epidemiology / Q000601:surgery*; D009017:Morbidity / Q000639:trends; D011795:Surveys and Questionnaires
keywords: International consensus conference on laparoscopic liver resection; Laparoscopic liver resection; Open liver resection