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Randomized Controlled Trial Comparative Study Clinical Trial
Heat retention using passive systems during anaesthesia: comparison of two plastic wraps, one with reflective properties.
- S Deacock and A Holdcroft.
- Department of Anaesthesia, Royal Postgraduate Medical School, London.
- Br J Anaesth. 1997 Dec 1;79(6):766-9.
AbstractHypothermia during prolonged surgery may be prevented by active and passive warming methods. We have compared randomly two types of occlusive body wraps in groups of 20 patients. One wrap had additional reflective properties which, by reducing radiative in addition to convective and evaporative heat loss, was expected to improve heat conservation. Patients were studied during hepatopancreatobiliary surgery and both groups were similar in characteristics. Skin and core body temperatures increased and core temperature exceeded 37 degrees C in 40% of patients in both groups. This continuous increase in temperature was unexpected and the observed heat gain may have been stimulated endogenously by the type of surgery rather than that supplied externally. Overall, mean hourly heat gain was similar in both groups: 71 (SD 28) kJ h-1 in the reflective group and 67 (33) kJ h-1 in the other group.
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