Objective To summarize the experience in prevention and treatment of iatrogenic bile duct injury Methods Clinical data of 112 cases with iatrogenic bile duct injury in ten hospitals of Songhua river drainage area from January 1978 to January 2003 were analyzed retrospectively Results The main cause of iatrogenic bile duct injury was wrong identifying the anatomy of the Calot′s triangle before cholecystectomy accounting for 55 4% (62/112) Diagnosis depended on clinical features, celiac puncture and imaging examination Ultrasonography was among the most sensitive diagnostic means (diagnostic rate=97 5%) Six types of injury were identified according to their locations and type Ⅲ damage was most common in clinical practice (92/112) The curative rate in this group was 95 5% (107/112) Eighty seven cases (77 7%) underwent Roux en Y choledochojejunostomy, with cure rate of 94 3%(82/87) Conclusion Iatrogenic bile duct injury prevention lies in identifing the topography of extrahepatic bile ducts Roux en Y choledochojejunostomy is usually the therapy of choice

MA Yueh-ch'ing (1906—1984), graduated from Peking Union Medical College in 1934, and became the first Chinese anesthetist hired by Peking Union Medical College Hospital in 1939. Based on the development and historical background of global anesthesiology, this article briefly introduces MA Yueh-ch'ing's personal experience and major achievements in anesthesiology.