title: Selective MRCP in the management of suspected common bile duct stones.
abstract: BACKGROUND
  It is controversial whether selective endoscopic sphincterotomy or routine laparoscopic bile duct exploration is the optimal treatment for choledocholithiasis. Magnetic resonance cholangio-pancreatography (MRCP) is a safe and accurate imaging modality; this study evaluated its use in a clinical algorithm for the management of suspected choledocholithiasis.
  
  
  METHODS
  Consecutive patients presenting with suspected common bile duct (CBD) stones were managed according to an algorithm involving the selective use of MRCP to identify patients who required endoscopic sphincterotomy and bile duct clearance. Following radiological demonstration of a clear CBD, all patients were considered for cholecystectomy.
  
  
  RESULTS
  From 157 consecutive patients, 68 proceeded straight to endoscopic sphincterotomy, which was therapeutic in 59. Of 89 who underwent MRCP, choledocholithiasis was demonstrated in 29; subsequent endoscopic sphincterotomy was therapeutic in 22. MRCP demonstrated a clear CBD in the remaining 60 patients. Seventy-four patients subsequently underwent cholecystectomy, with a conversion rate of 9% and a median postoperative stay of 1 day. There were no instances of post-sphincterotomy pancreatitis or haemorrhage requiring transfusion.
  
  
  CONCLUSIONS
  An algorithm involving selective MRCP with endoscopic sphincterotomy is a safe, effective means of managing suspected choledocholithiasis, particularly where the expertise, equipment or theatre time for laparoscopic bile duct exploration is not routinely available.
authors.affiliation: Queen Alexandra Hospital, Portsmouth, UK. mercersurgeon@hotmail.com
authors.forename: Stuart
authors.initials: S
authors.lastname: Mercer
authors.forename: Sukhpal
authors.initials: S
authors.lastname: Singh
authors.forename: Iain
authors.initials: I
authors.lastname: Paterson