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A condition of elevated body temperature.



the accumulation of excess heat in the body of humans or animals, with an elevation of body temperature, caused by external factors that hinder the transfer of heat to the external environment or increase heat intake from outside the body. Hyperthermia arises when there is maximum strain on the physiological mechanisms of thermoregulation (perspiration, dilation of cutaneous blood vessels, and so forth); if the causes are not removed, it progresses, ending with heat stroke at a body temperature of approximately 41°-42° C.

Hyperthermia is accompanied by an increase of metabolism and qualitative disturbances of it, loss of water and salts, and disruption of blood circulation and the delivery of oxygen to the brain, causing agitation and sometimes convulsions and fainting. High temperature during hyperthermia is tolerated less readily than it is in other feverish diseases. The development of hyperthermia is promoted by an increase in heat production (for example, during muscular work), disruption of thermoregulation mechanisms (with narcosis, drunkenness, and certain diseases), or age-related failure of these mechanisms (in very young children). Artificial hyperthermia is used in treating certain nervous and slowly progressing chronic diseases.


References in periodicals archive ?
Yet a recent study counted only 424 heat-related deaths in the city during the hottest part of the year (May 15 through October 15) over the period 2000-2011, an average of just 35 deaths per year.
TABLE 1 Summary of 2012 Alabama Heat-Related Deaths and Illnesses Category # Heat-related deaths 6 Other 1 (Blank) 5 Heat-related illnesses 809 Athletic related 104 Other 358 Work related 347 Total 815 TABLE 2 Management Occupation Title From 2002 Census 2002 2002 Assigned Assigned Occupational Census SOC (a) Activity MET Classification System Code Code Codes Values Fire fighters 3740 33-2011 12 5.
For heat-related deaths during the heat wave, 93 occurred in the community (88%) and 13 occurred in long-term health care facilities and hospitals (12%).
The Department for Energy and Climate Change has issued a pamphlet warning that the UK faces summer heat-related deaths, sea level rises and food shortages by the end of the century as a result of global warming.
The threat of heat-related deaths shouldn't be a factor.
Britain, for example, with a temperate climate, has only 1,000 heat-related deaths every year, compared with 20,000 cold-related.
Heat-Related Deaths Among Crop Workers--United States, 1992-2006 by R.
According to the Centers for Disease Control and Prevention, there were 8015 heat-related deaths in the United States between 1979 and 1999.
significant: more people die heat-related deaths annually in the U.
SOUTH-eastern Europe baked in its second major heat wave in a month yesterday, with at least 27 heat-related deaths in Romania, dozens of houses destroyed by forest fires in Macedonia and a nationwide power outage in Albania - with unexploded, buried ordnance posing an additional threat.
The number of heat-related deaths in Greece rose to seven, the Health Ministry said, and the cause of five other deaths was being investigated.
Unprecedented heat-related deaths during the 2003 heat wave in Paris: consequences on emergency departments.