British Journal of Anaesthesia, 1994, Vol. 73, No. 4 450-452
© 1994 The Board of Management and Trustees of the British Journal of Anaesthesia
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Effects of passive and active smoking on induction of anaesthesia
Department of Anaesthesia, City Hospital Hucknall Road, Nottingham
Department of Respiratory Medicine, City Hospital Hucknall Road, Nottingham
Correspondence to J. C.
It is said that cigarette smokers suffer stormy induction of anaesthesia; although plausible, this is unsubstantiated. We have studied the incidence of adverse events during induction, together with peripheral oxygen saturation (Spo2), in active and passive smokers, and in non-smokers. During induction, both active and passive smokers had a higher incidence of adverse events than non-smokers (P<0.01 and P<0.05, respectively). Irrespective of smoking status, those suffering adverse events had greater concentrations of carboxyhaemoglobin and suffered more oxygen desaturation than those not suffering such events. Although we were unable to demonstrate a direct link between smoking status and oxygen desaturation during induction, our study gives a firmer basis for exhorting patients not only to stop smoking before anaesthesia but also to avoid passive smoking.
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