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Esophageal Heat Transfer for Patient Temperature Control and Targeted Temperature Management

Esophageal Heat Transfer for Patient Temperature Control and Targeted Temperature Management

Published on: November 21, 2017

A randomised controlled trial of the electric heating pad vs forced-air warming for preventing hypothermia during

K K Leung¹, A Lai, A Wu

¹Department of Anaesthesia, United Christian Hospital, China.

|May 18, 2007

Abstract:

A randomised controlled trial was conducted to compare the efficacy of upper body forced-air warming (Bair Hugger, Augustine Medical model 500/OR, Prairie, MN) with that of an electric heating pad (Operatherm 202, KanMed, Bromma, Sweden) for maintenance of intra-operative body temperature in 60 patients undergoing laparotomy under general anaesthesia. The nasopharyngeal temperature was recorded throughout the operative period. The mean (SD) final temperatures were 36.2 (0.4) degrees C with forced-air warming and 35.5 (1.0) degrees C with electric heating pad (p < 0.01). Upper body forced-air warming is more effective than the heating pad for maintenance of body temperature during laparotomy.

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Decreased Body Temperature

Decreased Body Temperature

A decreased body temperature can occur in patients with hypothermia and frostbite. Heat loss with extended cold exposure overpowers the body's ability to create heat, resulting in hypothermia. Core temperature readings help classify hypothermia. Mild hypothermia is temperatures between 32 °C (89.6 °F) and 35°C (95 °F) and is caused by impaired thermoregulation. Moderate hypothermia is temperatures between 28 C (82.4 °F) and 32 °C (89.6 °F) caused by sustained extreme cold exposure, and severe...

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