Heatstroke is an acute medical emergency that is always fatal if left untreated. The diagnosis of heatstroke should be considered in any hyperthermic patient with altered mental status during a heat wave or following vigorous muscle exertion. Heat can damage the structure and function of essential macromolecules, including proteins, membrane lipids, and nucleic acids, and thereby lead to multiple-organ failure, culminating in death. The cytotoxic effect of heat is a function of degree and duration of hyperthermia; thus, an early diagnosis and prompt initiation of cooling are paramount to halt progression to tissue damage and death.
Keywords: heat shock proteins; heat wave; heatstroke; hyperthermia; thermoregulation.
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