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Canadian Journal of Anesthesia, Vol 25, 43-49, Copyright © 1978 by Canadian Anesthesiologists' Society
1 Department of Anesthesiology and the Anesthesia Research Center, University of Washington School of Medicine, Seattle, Washington 98195, U.S.A.
This study involves ventilation of the lungs with warmed humidified anaesthetic gases during prolonged elective abdominal operations. Tympanic, oesophageal and toe temperatures were compared between twenty warmed and twenty un-warmed patients at various times during operation and recovery. Fifty per cent (10/20) unwarmed patients shivered in the recovery room, while none of the warmed patients shivered. Our data indicate that pulmonary ventilation with warm humidified anaesthetic gases provides heat transfer by the lungs, preventing hypothermia during operation and post-anaesthesia shivering is prevented by maintaining the patient normothermic in both the operating room and the recovery room.
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