Are liver function tests, pancreatitis and cholecystitis predictors of common bile duct stones? Results of a prospective, population-based, cohort study of 1171 patients undergoing cholecystectomy
Per Videhult, Gabriel Sandblom, Claes Rudberg, Ib Christian Rasmussen, Per Videhult, Gabriel Sandblom, Claes Rudberg, Ib Christian Rasmussen
Abstract
Objective: The purpose of this study was to explore the accuracy of elevated liver function values, age, gender, pancreatitis and cholecystitis as predictors of common bile duct stones (CBDS).
Methods: All patients operated on for gallstone disease over a period of 3 years in a Swedish county of 302,564 citizens were registered prospectively. Intraoperative cholangiography (IOC) was used to detect CBDS.
Results: A total of 1171 patients were registered; 95% of these patients underwent IOC. Common bile duct stones were found in 42% of patients with elevated liver function values, 20% of patients with a history of pancreatitis and 9% of patients with cholecystitis. The presence of CBDS was significantly predicted by elevated liver function values, but not by age, gender, history of acute pancreatitis or cholecystitis. A total of 93% of patients with normal liver function tests had a normal IOC. The best agreement between elevated liver function values and CBDS was seen in patients undergoing elective surgery without a history of acute pancreatitis or cholecystitis.
Conclusions: Although alkaline phosphatase (ALP) and bilirubin levels represented the most reliable predictors of CBDS, false positive and false negative values were common, especially in patients with a history of cholecystitis or pancreatitis, which indicates that other mechanisms were responsible for elevated liver function values in these patients.
© 2011 International Hepato-Pancreato-Biliary Association.
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Source: PubMed