RADIO-FREQUENCY REWARMING IN RESUSCITATION FROM SEVERE HYPOTHERMIA

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Abstract
Twenty-seven dogs and monkeys were restored to normal body temperature from near-lethal limits of cold, using a radio-frequency rewarming technique. Induction cable applicators were chosen for their facility of arrangement and comparative safety. There was no evidence of optimum frequency among the three radio frequencies used. However, the rate of rewarming was dependent upon the spacing of coils from the body, with most satisfactory rewarming resulting from the use of 1/2 in. thick rubber pads. Dogs were rewarmed at an average rate of 11.1° C. per hour, using the 1/2 in. spacing and a frequency of 13.56 megacycles per second.

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