|[@Characteristics and Causes of Hyperthermia
(The difference between "Heat Stroke" and "Fever")@]
|@Hyperthermia consists of two onsets, such
as "heat stroke" and "fever".
The "heat stroke" is not caused
by diseases, but caused by extrinsic disorders,
such as by a high-temperature environment
and by troubles in his/her thermolysis.
The heat of an infant is released by four means, such as radiation, convection, conduction, and transpiration in order to keep his/her body temperature constantly. However, under the high- temperature environment and high humidity, the thermolytic function is greatly suppressed in him/her, which brings him/her the hyperthermia ("heat stroke"). Under such conditions, peripheral blood vesseles are dilated, the hands and feet are warm, his/her skin is moist and sweat, because the peripheral deep temperature is elavated. The infant in "heat stroke" must reduces his/her basal metabolism not to elevate his/her core body temperature. In order to decrease his/her thermogenesis, the infant falls in sleep, reduces body movements and relaxes the muscles, in order to decrease his/her thermogenesis. For the treatment, it is important to remove promptly their clothes and to carry him/her to a cool place with wind.
|@On the other hand, "fever" is usually
accompanied with infections and other
In the case of infection, thermogenesis
remarkably increased and thermolysis
by peripheral vasoconstriction. In
of a high-fever, a patient feels "cold"
and shivers, because thermoregulation-center
is set erroneously at a high level
Thermoregulation of the infected patient
is similar to one of the person who
body temperature at a low-temperature
Therefore, thermogenesis is promoted
muscle movements as "shivering".
At the same time, thermolysis is inhibited
by peripheral vasoconstriction and
blood flow, therefore hands and feet
cold and do not sweat. For the treatment
of "fever", it is important
remove the cause of infection(s) and
some medicines which reduce muscle
( to decrease thermogenesis) and dilate
blood vessels ( to increase thermolysis),
such as tranquilizers. In general sweating
is observed when peripheral vessels
and the symptoms begin to recover.
both "fever" and "heat
are classified as hyperthermia, there
fundamental differences in the thermoregulations
and treatments between them.