title: Laparoscopic major liver resection in Korea: a multicenter study.
abstract: BACKGROUND
  We report our experience with laparoscopic major liver resection in Korea based on a multicenter retrospective study.
  
  
  METHODS
  Data from 1,009 laparoscopic liver resections conducted from 2001 to 2011 were retrospectively collected. Twelve tertiary medical centers with specialized hepatic surgeons participated in this study.
  
  
  RESULTS
  Among 1,009 laparoscopic liver resections, major liver resections were performed in 265 patients as treatment for hepatocellular carcinoma, metastatic tumor, intrahepatic duct stone, and other conditions. The most frequently performed procedure was left hemihepatectomy (165 patients), followed by right hemihepatectomy (53 patients). Pure laparoscopic procedure was performed in 190 patients including 19 robotic liver resections. Hand-assisted laparoscopic liver resection was performed in three patients and laparoscopy-assisted liver resection in 55 patients. Open conversion was performed in 17 patients (6.4 %). Mean operative time and estimated blood loss in laparoscopic major liver resection was 399.3 ± 169.8 min and 836.0 ± 1223.7 ml, respectively. Intraoperative transfusion was required in 65 patients (24.5 %). Mean postoperative length of stay was 12.3 ± 7.9 days. Postoperative complications were detected in 53 patients (20.0 %), and in-hospital mortality occurred in two patients (0.75 %). Mean number and mean maximal size of resected tumors was 1.22 ± 1.54 and 40.0 ± 27.8 mm, respectively. R0 resection was achieved in 120 patients with hepatic tumor, but R1 resection was performed in eight patients. Mean distance of safe resection margin was 14.6 ± 15.8 mm.
  
  
  CONCLUSIONS
  Laparoscopic major liver resection has become a reliable option for treatment of liver disease in Korea.
authors.affiliation: Department of Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, 166 Gumi-ro, Bundang-gu, Seongnam, Gyeonggi 463-707, Korea.
authors.forename: Dae Wook
authors.initials: DW
authors.lastname: Hwang
authors.forename: Ho-Seong
authors.initials: HS
authors.lastname: Han
authors.forename: Yoo-Seok
authors.initials: YS
authors.lastname: Yoon
authors.forename: Jai Young
authors.initials: JY
authors.lastname: Cho
authors.forename: Yujin
authors.initials: Y
authors.lastname: Kwon
authors.forename: Ji Hoon
authors.initials: JH
authors.lastname: Kim
authors.forename: Joon Seong
authors.initials: JS
authors.lastname: Park
authors.forename: Dong Sup
authors.initials: DS
authors.lastname: Yoon
authors.forename: In Seok
authors.initials: IS
authors.lastname: Choi
authors.forename: Keun Soo
authors.initials: KS
authors.lastname: Ahn
authors.forename: Yong Hoon
authors.initials: YH
authors.lastname: Kim
authors.forename: Koo Jeong
authors.initials: KJ
authors.lastname: Kang
authors.forename: Young Hoon
authors.initials: YH
authors.lastname: Kim
authors.forename: Young Hoon
authors.initials: YH
authors.lastname: Roh
authors.forename: Chong Woo
authors.initials: CW
authors.lastname: Chu
authors.forename: Hyung Chul
authors.initials: HC
authors.lastname: Kim
authors.forename: Chang Moo
authors.initials: CM
authors.lastname: Kang
authors.forename: Gi Hong
authors.initials: GH
authors.lastname: Choi
authors.forename: Jin Sub
authors.initials: JS
authors.lastname: Choi
authors.forename: Kyung Sik
authors.initials: KS
authors.lastname: Kim
authors.forename: Woo Jung
authors.initials: WJ
authors.lastname: Lee
authors.forename: Sung Su
authors.initials: SS
authors.lastname: Yun
authors.forename: Hong Jin
authors.initials: HJ
authors.lastname: Kim
authors.forename: Seog Ki
authors.initials: SK
authors.lastname: Min
authors.forename: Hyeon Kook
authors.initials: HK
authors.lastname: Lee
authors.forename: In-Sang
authors.initials: IS
authors.lastname: Song
authors.forename: Kwang-Sik
authors.initials: KS
authors.lastname: Chun
authors.forename: Eung-Ho
authors.initials: EH
authors.lastname: Cho
authors.forename: Sung-Sik
authors.initials: SS
authors.lastname: Han
authors.forename: Sang-Jae
authors.initials: SJ
authors.lastname: Park
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002648:Child; D002675:Child, Preschool; D005260:Female; D006498:Hepatectomy / Q000379:methods* / Q000706:statistics & numerical data; D017052:Hospital Mortality / Q000639:trends; D006801:Humans; D015994:Incidence; D010535:Laparoscopy / Q000706:statistics & numerical data*; D007902:Length of Stay / Q000639:trends; D008107:Liver Diseases / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000453:epidemiology; D056910:Republic of Korea / Q000453:epidemiology; D012189:Retrospective Studies; D012371:Robotics / Q000706:statistics & numerical data; D015996:Survival Rate / Q000639:trends; D016896:Treatment Outcome; D055815:Young Adult