[Ischaemic cholestasis in intensive care unit].
Cholestasis is frequently encountered in the ICU and is associated with a poor outcome. Ischaemia should be considered among the numerous aetiologic factors that may trigger cholestasis in the ICU. Blood supply to biliary tract is mainly provided by the hepatic artery, throughout a peribiliary vascular plexus. Interruption of the hepatic artery blood supply leads to cholestasis with a concomitant proliferative biliary reaction. Bile duct proliferation persists, while bile flow restores and biologic cholestasis syndrome spontaneously resolves in several weeks. Liver fibrosis related to the activation of periportal mesenchymental cells is observed in the close vicinity of proliferative bile ducts. Ischaemic cholestasis can be ascribed, at least partly, to hypoxia-induced disorders in the expression of hepatocytes biliary salts membrane transporters.
Beaussier
M
M
Département d'anesthésie-réanimation chirurgicale, hôpital Saint-Antoine, AP-HP, 184, rue du Faubourg-Saint-Antoine, 75012 Paris, France. marc.beaussier@sat.aphp.fr
Schiffer
E
E
Housset
C
C