Biliary bacterial infection decreased the secretion of bile acids and bilirubin into bile

BACKGROUND: Bacterial cholangitis is frequently associated with serious com plications. METHODS: The plasma disappearance rates and the biliary output of bile acid s and bilirubin after percutaneous transhepatic biliary drainage (PTBD) wer e examined in 29 patients with extrahepatic biliary obstruction. RESULTS: Twenty-nine patients were divided into the bacteria-minus (n = 17) and bacteria-plus (n = 12) groups. Decreases in the plasma bile acid and b ilirubin levels of the bacteria-minus group (t(1/2) = 0.38 and 3.8 days for bile acids and bilirubin, respectively) were faster than those of the bact eria-plus group (t(1/2) = 1.7 and 7.5 days). The bile flow rate was signifi cantly increased in the bacteria-plus group compared with the bacteria-minu s group. The calculated values of bilirubin and bile acid in the bile were higher in the bacteria-minus group than in the bacteria-plus group. CONCLUSIONS: Bacterial colonization in the bile stimulates bile duct cells to increase bile volume and inhibits the hepatocyte transport activity of b ile acids and bilirubin. Am J Surg. 1999;177: 38-41. (C) 1999 by Excerpta M edica, Inc.