Ability to diagnose chronic external biliary fistula calculous origin

Introduction: Chronic external biliary fistulas occur in 0.4-2.4% of patients with diseases of the biliary tract and are likely to be one of the complications of surgical treatment of diseases of the biliary tract. Aim: Choose the most appropriate methods of diagnosis of chronic external biliary fistula calculous etiology by improving the diagnostic algorithm. Materials and methods: Analyzed the results of diagnosis 86 patients with chronic external biliary fistula. 79 were operated previously in other hospitals. Fistula after they have formed the following operations: cholecystostomy - 23, cholecystectomy, holedohostomii on Wisniewski - 37, cholecystectomy, choledochostomy through the cystic duct stump - 24, holedohostomii - 2. Of the 86 patients 72 were operated in urgent procedure. To clarify the diagnosis chronic external biliary fistula used the following methods: fistulocholangiography - 76, ultrasound - 71 CT - 32, fistulocholangioscopy - 9, endoscopic retrograde cholangiopancreatography - 9, the definition of sterkobilina in feces and urine urobilin - 30, determination of bilirubin in the fistulous the discharge - 17, test with methylene blue - 16. Results: One of the most informative methods for studying bile fistula is fistulocholangiography. With it identified: bile duct stones - for 74 people, cystic duct stone - 12, stenosis of the sphincter of Oddi - 48 people. Endoscopic retrograde pancreatography performed in 9 patients with follow-up and removal of stone papillosfinkterotomiey of choledochal - in 5. The accuracy of ultrasound in detecting choledocholithiasis was 86%, computed tomography - 92.3%. Fistulocholagioscopy with lithotomy was effective in 9 patients. Conclusions: None of the methods of preoperative diagnosis of chronic external biliary fistula is universal. The most valuable diagnostic information about the state of the bile ducts give fistulocholangiography, endoscopic retrograde pancreatography in some cases supplemented by ultrasound or computed tomography