• Anaesthesia · Nov 2006

    Randomized Controlled Trial Comparative Study

    Comparison of forced-air warming and electric heating pad for maintenance of body temperature during total knee replacement.

    • V Ng, A Lai, and V Ho.
    • Department of Anaesthesia, Queen Elizabeth Hospital, Hong Kong Special Administrative Region, People's Republic of China.
    • Anaesthesia. 2006 Nov 1; 61 (11): 1100-4.

    AbstractWe conducted a randomised controlled trial to compare the efficacy of forced-air warming (Bair Hugger(trade mark), Augustine Medical model 500/OR, Prairie, MN) with that of an electric heating pad (Operatherm 202, KanMed, Sweden) for maintenance of intra-operative body temperature in 60 patients undergoing total knee replacement under combined spinal-epidural anaesthesia. Intra-operative tympanic and rectal temperatures and verbal analogue score for thermal comfort were recorded. There were no differences in any measurements between the two groups, with mean (SD) final rectal temperatures of 36.8 (0.4) degrees C with forced-air warming and 36.9 (0.4) degrees C with the electric pad. The heating pad is as effective as forced-air warming for maintenance of intra-operative body temperature.

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