British Journal of Anaesthesia, 1989, Vol. 63, No. 5 558-560
© 1989 The Board of Management and Trustees of the British Journal of Anaesthesia
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EFFECT OF ANAESTHESIA ON THE QT INTERVAL
University Department of Anaesthesia, University of Manchester, Withington Hospital Manchester M20 8LR
A prolonged electrocardiographic QT interval may be harmful during general anaesthesia. It may be prudent, therefore, to select anaesthetic agents which have the least effect on the QT interval. In a controlled study, propofol has been shown to have less effect on the QT interval than thiopentone (P < 0.05). Our data suggest also that any effects which may be caused by enflurane and isoflurane are masked by the effects of the induction agent.
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