Pathophysiology
Clinical meaning
Bile duct injury (BDI) is the most feared complication of cholecystectomy, occurring in 0.3-0.7% of laparoscopic procedures compared to 0.1-0.2% in open surgery. The Strasberg classification system categorizes BDI by anatomic severity: Type A involves bile leak from the cystic duct stump or minor hepatic duct (a duct of Luschka); Type B is occlusion of an aberrant right hepatic duct; Type C is transection of an aberrant duct without ligation; Type D is a lateral injury to an extrahepatic duct; and Type E encompasses injuries to the main hepatic duct (subdivided E1-E5 by the Bismuth classification based on level of stricture relative to the hepatic duct confluence). Type A injuries are the most common and generally manageable with percutaneous or endoscopic drainage plus biliary stenting. Type E injuries carry the worst prognosis and frequently require hepaticojejunostomy (Roux-en-Y reconstruction). Postcholecystectomy syndrome (PCS) occurs in 10-40% of patients and encompasses a heterogeneous group of symptoms persisting or developing after cholecystectomy. Biliary causes include retained common bile duct (CBD) stones, bile duct stricture, cystic duct remnant syndrome, and sphincter of Oddi dysfunction (SOD)....