British Journal of Anaesthesia, 1989, Vol. 63, No. 5 531-535
© 1989 The Board of Management and Trustees of the British Journal of Anaesthesia
research-article |
PREOPERATIVE CIMETIDINE DOES NOT PREVENT SUBCLINICAL HALOTHANE HEPATOTOXICITY IN MAN
University Department of Anaesthetics, The Royal Infirmary Edinburgh EH3 9YW
University Department of Clinical Chemistry, The Royal Infirmary Edinburgh EH3 9YW
Correspondence to D.C.R.
To assess the influence of pretreatment with cimetidine on changes in hepatocellular integrity after halothane anaesthesia, 53 patients were allocated randomly to receive either cimetidine 1600 mg orally or placebo tablets before anaesthesia. Plasma concentrations of glutathione S-transferase (GST) were measured as an index of hepatic damage. Data from 45 patients were available for analysis. Plasma GST concentration increased significantly 3 h after induction of anaesthesia in both groups (P < 0.01, both groups) and at 6 h in the cimetidine groups (P < 0.05). Pretreatment with cimetidine did not influence the magnitude of increase in GST concentration. There was no difference between the groups in the frequency of abnormal GST concentrations at any time. Cimetidine does not appear to prevent release of GST from the liver by halothane anaesthesia in man.