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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 ?
After a few days of detoxification and adjunct therapies, I received my first whole-body hyperthermia treatment (WBHT).
Clinical presentation, treatment, and complications of malignant hyperthermia in North America from 1987 to 2006.
The efficiency of the nanoparticles based hyperthermia treatment of cancer can be affectively increased by simultaneous incorporation of these nanoparticles with some targeting as well as chemotherapeutic agents.
Radiation Therapy Oncology Group (RTOG) guidelines give instructions for thermometry, which are essential for CEM calculations and declaration of hyperthermia quality.
For the study of hyperthermia as a method of treating cancer, experimental animal models were used to treat various types of advanced cancer.
The family was counseled about the future risk of malignant hyperthermia to the patient and siblings if exposed to general anesthesia.
Living in housing without air conditioning, not drinking enough fluids, not understanding how to respond to the weather conditions, lack of mobility and access to transportation, overdressing, and visiting overcrowded places all are lifestyle factors that can increase the risk for hyperthermia.
Malignant hyperthermia is reportedly a condition that can be triggered when genetically susceptible individuals come in contact with certain inhaled (volatile) anesthetics or the muscle relaxant succinylcholine.
Due to the evident difficulties in conducting studies while examining the effects of high fever and hyperthermia on child's brain, studies are limited to experiments using animal models.

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