Accidental hypothermia is defined as an unintentional declinein the core temperature below 35 °C. At this temperature,the coordinated systems responsible for thermoregulation beginto fail, since the compensatory physiologic responses to minimizeheat loss through radiation, conduction, convection, respiration,and evaporation are very limited.1,2,3,4 In this article, weshall present an overview of the pertinent pathophysiology andguidelines for resuscitation and rewarming.
Nuclei in the preoptic anterior hypothalamus coordinate heatconservation. Activation of these thermostats and the cutaneouscold receptors initiates a cascade of compensatory physiologicevents (Table 1). After the initial stimulus, there is progressive. . . [Full Text of this Article]
Evaluation
Rewarming Strategies
Active External Rewarming
Active Core Rewarming
Pharmacologic Therapy
Conclusions
Source Information
From the Department of Emergency Medicine, University of Louisville, Louisville, Ky. (D.F.D.), and the Naval Health Research Center, Thermal Division, San Diego, Calif. (R.S.P.).
Address reprint requests to Dr. Danzl at the Department of Emergency Medicine, University of Louisville, Louisville, KY 40292.
References
Related Letters:
Accidental Hypothermia
Antretter H., Bonatti J., Dapunt O. E., Hernández E., Praga M., Alcázar J. M., Murray P. T., Fellner S. K., Mülleneisen N., Danzl D. F., Pozos R. S.
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N Engl J Med 1995;
332:1033-1035, Apr 13, 1995.
Correspondence
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