title: [The variation of hepatic duct confluence and asymptomatic common bile duct stone with routine intraoperative cholangiogram during laparoscopic cholecystectomy].
abstract: OBJECTIVE
  Intraoperative cholangiogram (IOC) during laparoscopic cholecystectomy (LC) has been used to evaluate bile duct stone. But, the routine use of IOC remains controversial. With routine IOC during LC, we reviewed the variation of hepatic duct confluence and try to suggest the diagnostic criteria of asymptomatic common bile duct (CBD) stone.
  
  
  METHODS
  We reviewed the medical record of 970 consecutive patients who underwent LC with IOC from January 1999 to December 2009, retrospectively.
  
  
  RESULTS
  Nine hundered seventy patients were enrolled. IOC were successful in 957 (98.7%) and unsuccessful in 13 (1.3%). Eighty two of 957 patients (8.2%) were excluded because of no or poor radiologic image. According to Couinaud's classification, 492 patients (56.2%) had type A hepatic duct confluence, 227 patients (26.1%) type B, 15 patients (17%) type C1, 43 patients (4.9%) type C2, 72 patients (8.2%) type D1, 21 patients (2.4%) type D2, 1 patient (0.1%) type E1, 1 patient (0.1%) type E2, 2 patients (0.2%) type F, and 1 patient (0.1%) no classified type. The CBD stone was found in 116 of 970 (12.2%) patients. In 281 patients, preoperative serologic and radiologic tests did not show abnormality. When preoperative findings were not remarkable, there was no difference of clinical features between patients with or without CBD stones.
  
  
  CONCLUSIONS
  Although IOC during LC has some demerits, it is a safe and accurate method for the detection of CBD stone and the anatomic variation of intrahepatic duct.
authors.affiliation: Department of Sugery, Bundang Jaesaeng Hospital, Seongnam, Korea. cutefrog76@naver.com
authors.forename: Se Young
authors.initials: SY
authors.lastname: Kim
authors.forename: Ki Ho
authors.initials: KH
authors.lastname: Kim
authors.forename: Il Dong
authors.initials: ID
authors.lastname: Kim
authors.forename: Byung Sun
authors.initials: BS
authors.lastname: Suh
authors.forename: Dong Woo
authors.initials: DW
authors.lastname: Shin
authors.forename: Sang Wook
authors.initials: SW
authors.lastname: Kim
authors.forename: Jin Soo
authors.initials: JS
authors.lastname: Park
authors.forename: Hye In
authors.initials: HI
authors.lastname: Lim
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D015992:Body Mass Index; D002758:Cholangiography; D017081:Cholecystectomy, Laparoscopic; D005260:Female; D042882:Gallstones / Q000175:diagnosis* / Q000473:pathology; D006500:Hepatic Duct, Common / Q000033:anatomy & histology / Q000000981:diagnostic imaging*; D006801:Humans; D007432:Intraoperative Period; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies