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  • Book
    Roy Bell.
    Print Access Request
    Location
    Version
    Call Number
    Items
    Stored offsite. Please request print.
    c1980-
    RC78 .B393
    1
  • Article
    Harp JR, Nilsson L, Siesjö BK.
    Acta Anaesthesiol Scand. 1976;20(1):83-90.
    The influence of halothane (0.6 and 2%) upon cerebral (cortical) blood flow (CBF) and cerebral metabolic rate for oxygen (CMRo2) was studied in artificially ventilated rats, using a modified technique of Kety & Schmidt (1948). The values obtained in halothane anaesthesia were compared to those recorded in nitrous oxide anaesthesia, or to those measured in unanesthetized animals given an analgesic drug (fentanyl citrate). Although it could be confirmed that halothane induces vasodilatation in the brain, there were relatively small differences in CBF between the groups. The results demonstrate that, in the rat, halothane depresses CMRo2 in a dose-dependent way. With 0.6% halothane, CMRo2 was reduced by 20-30% and, with 2% halothane, CMRo2 was reduced by about 50%. Thus, in the rat the effect of 2% halothane upon metabolic rate is comparable to that observed in barbiturate anaesthesia.
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