Efficacy of Head and Torso Rewarming by Using a Human Model for Severe Hypothermia
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Date
2017
Authors
Kulkarni, Kartik
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Abstract
This study determined the core rewarming effectiveness of the same amount of heat applied to the head or torso using a human model of severe hypothermia. Six male subjects were cooled three times in 8˚C water for 60 minutes or to a core temperature of 35˚C. Shivering was inhibited by intravenous meperidine (1.5 mg/kg), administered during the last ten minutes of immersion, and during warming, to a maximum cumulative dose of 3.3 mg/kg. After exiting from the cold water and were rewarmed for 120 minutes by one of the following methods: Spontaneous warming, and a charcoal heater applied to the Head, or Torso. No significant differences were found in the afterdrop amount or core rewarming rates among the conditions. In non-shivering cold subjects, head warming is a viable alternative if torso warming is contraindicated.
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Keywords
Hypothermia, Head warming, Spontaneous warming, Torso warming, Afterdrop