Hyperthermia

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Related to hyperthermic: hypothermic, hyperthermic intraperitoneal chemotherapy

hyperthermia

[‚hī·pər′thər·mē·ə]
(physiology)
A condition of elevated body temperature.

Hyperthermia

 

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.

P. N. VESELKIN

References in periodicals archive ?
Intraperitoneal hyperthermic chemotherapy for peritoneal carcinomatosis: analysis and outcomes.
Studies examining hyperthermia in a mixed brain injury population in a neuroscience intensive care unit reported hyperthermic rates of 16% within 24 hours of admission, 31.
Two other types of hyperthermic syndromes clinically resemble serotonin syndrome but are quite different.
We believe that heat shock in the course of PDT could promote photochemical processes causing the transition of XDH to its oxidase form, since incubation of HPD-loaded EAC cells in the dark or irradiation of the cells not exposed to HPD even at a hyperthermic (44[degrees]C) temperature had no effect on the activity of XOD (Fig.
Hyperthermic tissue damage is not often taken into account when mapping thermal destruction after tissue exposure to diathermy [Duffy et al.
Concerning treatment, it is extremely important in hyperthermic patients to lower body temperature levels in the early hours, to positively influence the malignant evolution of this severe pathologic process.
Intraperitoneal hyperthermic chemotherapy with mitomycin C and 5FU, at 10[degrees]F above body temperature, has also shown promise.
said that cryoablation offers unique immunologic advantages over both lumpectomy and hyperthermic techniques such as radiofrequency, microwave, laser, and high-intensity ultrasound ablation.
Most people are now sensible enough not to leave their pet to cook in a locked car, but every year we see hyperthermic collapse as a result of fat, unfit dogs gamely puffing after their owners as the sun beats on their shaggy backs.
Cytoreductive surgery associated with continuous hyperthermic peritoneal perfusion (cisplatin at 42[degrees]C, for 1 hr) was performed.