[Change in bile compounds by means of different drainage methods after surgery in the biliary tract].

The compound of the A-bile was analysed in 80 patients with choledocholithiasis during the operation and in the postoperative phase on the 1st, 3rd, 7th, and 14th day. The operation was finished with a drainage of the ductus choledochus outward in 40 patients, and with an intra-luminal transpapillary drainage to the duodenum in 40 other patients. 15 healthy individuals served as control group. The discholia--being always existent at first--receded in a very fast and most lasting way after the intraluminal transpapillary drainage. The authors applied a double-lumen transpapillary drainage after operation in the bile papilla with success for years.