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Title: Reversible hypoprothrombinemia in a patient with primary biliary cirrhosis treated with rifampicin
Authors: Van Steenbergen, Werner ×
Vermylen, Jozef #
Issue Date: Sep-1995
Series Title: American Journal of Gastroenterology vol:90 issue:9 pages:1526-8
Abstract: A patient with primary biliary cirrhosis (PBC) developed marked hypoprothrombinemia with decreased concentrations of the vitamin K-dependent coagulation factors VII, IX, and X during treatment with rifampicin. The coagulation abnormalities were easily corrected by administration of vitamin K. Different mechanisms may be involved, such as a decreased production of menaquinones by intestinal bacteria, a warfarin-like effect by inhibition of the vitamin K epoxide reductase, or an increased oxidative degradation of vitamin K as a result of hepatic microsomal enzyme stimulation. Whatever the mechanism involved, the appearance of this complication in a patient with PBC probably points to the importance of a pre-existing poor vitamin K status. Patients with PBC, treated with rifampicin, should have a regular monitoring of their vitamin K status. Adequate vitamin substitution should be administered, if necessary.
ISSN: 0002-9270
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Molecular and Vascular Biology
Faculty of Medicine - miscellaneous
× corresponding author
# (joint) last author

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