OPERATIVE CHOLANGIOGRAPHY: EVALUATION OF ITS ROUTINE USE IN 569 CHOLECYSTECTOMIES

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Abstract
From 1974 till 1979, 569 cholecystectomies with routine operative cholangiography were performed in the university surgical unit, Kwong Wah Hospital, Hong Kong, for non-malignant disease of the gallbladder. Gallstones were present in 522 cases. Acalculous cholecystitis occurred in 47 cases. At least one of the clinical or operative indications to explore the common bile duct was present in 312 of the patients. However, in this group of patients in whom routine operative cholangiography was done, exploration of the common bile duct was performed in only 147, thus avoiding unnecessary exploration of the duct in 165 cases (52.8%). In the remaining 257 patients in whom there was no indication to explore the common bile duct, operative cholangiography revealed unexpected stones in the common bile duct in 14 (5.5%). After choledochotomy, post exploratory operative T-tube cholangiography was performed to rule out overlooked stones, which were present in six cases (6/161, i.e., 3.7%). Postoperative T-tube cholangiography performed on the 12th to the 14th postoperative day showed retained stones in 17 cases, giving an incidence of known retained stones of 11% (17/161) of cholecystectomies with exploration of the common bile ducts, or 3% (17/569) in the whole series of cholecystectomies.

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