Pathophysiological factors underlying heatstroke

Medical Hypotheses
You-E YanMing Fan

Abstract

Heatstroke is a life-threatening illness characterized by an elevated core body temperature (>40 degrees C) and dysfunction of central nervous system, which results in delirium, convulsions, or coma. Despite adequate hypothermia or other care-therapy, heatstroke is often fatal. On the basis of our knowledge of the pathophysiology on heatstroke, we hypothesized that heatstroke is a form of hyperthermia associated with the acute physiological alterations, the cytotoxicity of heat, systemic inflammatory response, oxidative damage and attenuated heat-shock response leading to a syndrome of multi-organ dysfunction. In view of above-mentioned situation, the physiological factors underlying heatstroke and the corresponding possible therapeutic strategies to avert the complications of this disorder would be summarized in this review so as to provide some therapeutic guidelines for heatstroke. Heatstroke is a very complicated process. Acute physiological alterations, such as low arterial hypotension, intracranial hypertension, cerebral hypoperfusion, cerebral ischemia, and increased intracellular metabolism rate, occurred while exposed to a high ambient temperature. Hyperpyrexia caused cytotoxicity, resulting the degradation and aggrega...Continue Reading

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