Why heat stroke fever in children?

In the heat of the summer, often some children heat stroke occurs. Is due to children suffering from heat exhaustion in high temperatures or in hot sun activities under direct sunlight for a long time, leading to imbalance of thermoregulatory function, water and salt metabolism disorder and dysfunction of the nervous system of a series of symptoms. Why do children susceptible to heat stroke it? why fever heat stroke?

In normal circumstances, people General remained at 36 degrees centigrade temperature ~37 ℃, the constant temperature is due to the role of hypothalamic thermoregulatory center, make the body producing heat and cooling to maintain relative balance of results. When the ambient temperature is above body temperature, coupled with poor ventilation, the body\'s radiation and conduction convection cooling way obstacles, instead of the outside temperature by radiation temperature rises, then mainly by sweat evaporation cooling. But when the high temperature and high humidity environments exist simultaneously sweat evaporation is also affected, and waste heat from the body\'s large volume, body temperature rapidly rises. When the temperature rises, excited can cause central nervous system, endocrine system enhancements, protein and carbohydrate metabolism in patients with hyperthyroidism, increase in body heat production, this will cause body temperature to rise.

Under the influence of high temperature in the hypothalamus causes skin blood vessels to dilate, profuse sweating, a lot of sweat and cause the loss of body water loss salt to make insufficient blood volume cause a loop failure. Super high fever heat stroke can cause meningeal vascular cerebral edema and congestive, also makes the myocardial cell injury.

When children with heat stroke, the first symptoms are fever, body temperature can reach 38 ° c ~39 ° c, up to 41 ° c even in severe cases, heat stroke in children with higher temperature, the longer the duration, the prognosis is worse. Therefore, rapid cooling is the key to treatment of heat stroke.