Surgical audit of patients undergoing common bile duct exploration for stone

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Abstract
One hundred and sixty-four patients operated on for calculus disease of the common bile duct during the period 1977–85 were followed in a special clinic; the attendance for follow-up at 1, 3, 5 and 7 years was 90, 74, 60 and 54 per cent respectively. Eleven patients died during the study period (6·7 per cent), none of the deaths being attributable to biliary tract disease. The overall incidence of retained calculus was 2·4 per cent (four patients), but no cases of retained calculi were recorded in the last 4 years of the study; in this period, with the advent of choledochoscopy and fluoroscopic cholangiography, the incidence of the supraduodenal compared with the transduodenal approach to the common bile duct increased significantly (P<0·001). Twenty-two of 56 patients (39 per cent) followed up for 5 years remained or became symptomatic after surgery, the majority of whom had underlying conditions unrelated to disease of the biliary or pancreatic tree. This specific follow-up clinic has been of value in the long-term audit of patients undergoing bile duct surgery for choledocholithiasis and it has verified that a change of policy from transduodenal to supraduodenal choledochotomy with preservation of the sphincter, and use of the choledochoscope and fluorocholangiography, produce better results.