38 Heatstroke
Theory Refresher
BOX 38.1 Prognostic considerations in dogs with heatstroke
The prognosis in heatstroke depends on a number of factors including:
Unfavourable prognostic indicators include:
Pathogenesis
Pathophysiology
Heatstroke may be divided into two types. Classic heatstroke occurs due to exposure to high environmental temperature, for example being locked in a car with shut windows on a warm day, or being tied up outside without shade/water. Exertional heatstroke is the result of strenuous exercise. Many pathophysiological derangements are possible in heatstroke due to both direct heat-induced cytotoxicity and acute physiological changes due to hyperthermia. These are summarized in Box 38.3. Multiple organ dysfunction syndrome (MODS) (Box 38.4) is the most serious potential sequela of heatstroke.