الفهرس Only 14 pages are availabe for public view
 |  | from | 155 |  |  |
| | | from | 155 | | |
Abstract
In this essay, temperature regulation and its relation to anaesthesia was studied. Some physiological considerations concerning temperature regulation were discussed, with special references to the heat regulating systems, controls of heat production, heat loss and gain mechanisms. A separate chapter was specified to discuss accidental hyperthermia in the perioperative period as regards its causes and management with special reference to malignant hyperthermia. Malignant hyperthermia is a syndrome characterized by rapid uncontrollable rise of temperature. Aetiology, hereditary aspects, incidence, trigger agents, clinical presentations and treatment were all studied. Hypothermia has different physiological consequences associated with it; either intraoperatively including effects on cardiovascular system, respiratory system, blood gas transport, central nervous system, musculoskeletal system, endocrines, kidney, blood, gastrointestinal system, pregnancy, metabolism, acid base balance and electrolytes; or postoperatively including shivering, peripheral vasoconstriction and delayed drug clearance. Another point of importance was discussed is postoperative shivering, its causes, prevention and treatment.
The methods of prevention of inadvertent hypothermia during anaesthesia was discussed in details including elevation of ambient temperature, humidification of inspired gases, blood and fluid warmers, warming blankets, reflective blankets, core rewarming, radiant heaters and oesophageal rewarmers. Different sites of body temperature measurement by the use of thermometers is another item considered in details. A short account was specified to illustrate the monitoring of patient under hypothermia. Another point of importance was the different techniques and methods of induced hypothermia. The most useful and practical one is the surface cooling technique. Body cavity cooling and pharmacological hypothermia are another methods.