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Histological analysis of liver parenchyma and choledochal wall, and external diameter and intraluminal pressure of the common bile duct in controls and patients with common bile duct stones with and without acute suppurative cholangitis.

The purpose of this prospective controlled study was to determine the changes in intraluminal pressure and diameter of the common bile duct in a total of 121 bile patients with choledocholithiasis, and the consequences of these alterations for choledochal mucosa and liver histology. In fact, the reflux of bacteria from the obstructed biliary tract into the bloodstream is responsible for producing the clinical syndrome of acute suppurative cholangitis. Group I (26 patients) served as controls, Group II (50) had choledocholithiasis with clear green bile, and Group III (45) were patients with acute suppurative cholangitis with pus in the biliary tract. Ultrasonography revealed gallstones in all the patients. The external diameter of the common bile duct in patients with choledocholithiasis and acute suppurative cholangitis was significantly greater than in those of the other groups. Patients with acute suppurative cholangitis also had a higher intraluminal pressure than those of Groups I or II.