Study type: Medical/biological study (experimental study)

Reduced temperature afterdrop in rhesus monkeys with radio frequency rewarming med./bio.

By: Olsen RG
Published in: Aviat Space Environ Med 1988; 59 (1): 78-80
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Aim of study (acc. to author)

To conduct a study to specifically observe temperature afterdrop in rhesus monkeys after immersion in cold water.

Background/further details

Temperature afterdrop in a hypothermic subject is the continued fall in body temperature after rewarming has begun. Rewarming by either radiofrequency energy or a heating pad followed each immersion.

Endpoint

Exposure

Exposure Parameters
Exposure 1: 13.56 MHz
Exposure duration: up to 60 min

Exposure 1

Main characteristics
Frequency 13.56 MHz
Type
Exposure duration up to 60 min
Exposure setup
Exposure source
Setup subject placed inside the coil in prone position
Parameters
Measurand Value Type Method Mass Remarks
SAR 10 W/kg - - - -

Reference articles

Exposed system:

Methods Endpoint/measurement parameters/methodology

Investigated system:
Time of investigation:
  • before exposure
  • during exposure
  • after exposure

Main outcome of study (acc. to author)

Radiofrequency energy, initially applied at a specific absorption rate of 10 W/kg, was able to raise rectal temperature an average of 3°C in 20 min. For an equivalent period of rewarming with the heating pad, rectal temperature had not yet recovered from the immersion-induced afterdrop. In conclusion, radiofrequency rewarming offers a special advantage when applied to the treatment of immersion hypothermia.

Study character:

Study funded by

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