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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

The effect of biliary decompression on antibiotic biliary excretion.

BACKGROUND/AIMS: Raised biliary pressure may affect antibiotic biliary excretion. We evaluated whether biliary decompression for patients with biliary obstruction could improve antibiotic biliary excretion. METHODOLOGY: Eight patients with common bile duct obstruction undergoing endoscopic nasobiliary drainage were evaluated. During endoscopic cannulation, biliary pressure above the obstruction and antibiotic concentrations in the bile and peripheral blood were determined 60 min after the intravenous antibiotic (panipenem) administration. RESULTS: Biliary pressure was initially elevated above normal in all the patients, but normalized after biliary drainage for 5 to 7 days. At the initial endoscopic retrograde cholangiopancreatography, the aspirated bile contained low or undetectable levels of the antibiotic, but the mean bile panipenem concentration and the mean bile/plasma ratio of panipenem concentrations significantly improved after biliary decompression. CONCLUSIONS: The results suggest an important role of biliary pressure in determining antibiotic transfer into the bile.[1]


  1. The effect of biliary decompression on antibiotic biliary excretion. Yamamoto, S., Kubota, Y., Takaoka, M., Ogura, M., Tsuji, K., Yanagitani, K., Shimatani, M., Shibatani, N., Imai, Y., Takamidoh, S., Inoue, K. Hepatogastroenterology (2002) [Pubmed]
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