Cooling methods based on conduction
Conduction is the passive transfer of heat from the body into
the surroundings air, liquid, or solid in contact with the skin
along a temperature gradient.
1. Exertional heatstroke
Immersion in iced water
This is the most used conventional cooling technique and
involves placing the patient in a tub of iced water and continuously
massaging the extremities to promote vasodilatation and
heat loss [11,12,16,19,21]. Four studies that used this
method in patients with exertional heatstroke were identified
[19-21,30]. Table 2 presents a summary of data on cooling
methods based on conduction in the treatment of exertional
heatstroke.
Three of the studies included 41 young military personnel
treated with immersion in iced water to a target temperature of
between 38.3°C and 38.8°C [19-21] (Table 2). The cooling
time ranged from 10 to 60 minutes in all patients but one. No
fatalities were reported. Neurologic morbidity, characterized
by marked confusion, violent behavior, and frank psychosis,
was present during recovery but subsided subsequently [20].
Cooling methods based on conduction
Conduction is the passive transfer of heat from the body into
the surroundings air, liquid, or solid in contact with the skin
along a temperature gradient.
1. Exertional heatstroke
Immersion in iced water
This is the most used conventional cooling technique and
involves placing the patient in a tub of iced water and continuously
massaging the extremities to promote vasodilatation and
heat loss [11,12,16,19,21]. Four studies that used this
method in patients with exertional heatstroke were identified
[19-21,30]. Table 2 presents a summary of data on cooling
methods based on conduction in the treatment of exertional
heatstroke.
Three of the studies included 41 young military personnel
treated with immersion in iced water to a target temperature of
between 38.3°C and 38.8°C [19-21] (Table 2). The cooling
time ranged from 10 to 60 minutes in all patients but one. No
fatalities were reported. Neurologic morbidity, characterized
by marked confusion, violent behavior, and frank psychosis,
was present during recovery but subsided subsequently [20].
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