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[Mean body temperature during anesthesia in children with burns--its information value and use]
Insights
This study found significant body temperature reduction in children during anesthesia with halothane, methoxyflurane, or ketamine. No significant differences in temperature were observed between the anesthetic agents used.
Area of Science:
- Pediatric Anesthesiology
- Thermoregulation Research
Background:
- Maintaining normothermia in pediatric patients during anesthesia is crucial for preventing complications.
- Various anesthetic agents can influence intraoperative body temperature.
- Limited data exists on comparative body temperature changes across different anesthetic techniques in pediatric burn patients.
Purpose of the Study:
- To compare the effects of halothane, methoxyflurane, and ketamine anesthesia on mean body temperature in pediatric patients undergoing surgery.
- To assess the impact of different anesthetic regimens on thermoregulation during prolonged procedures.
Main Methods:
- Forty-four pediatric patients (0.4-0.6 sq. m. total body surface area) with burns (6-60% TBSA) were divided into three groups.
- Group 1: Halothane, nitrous oxide, oxygen with controlled ventilation.
- Group 2: Methoxyflurane, nitrous oxide, oxygen with controlled ventilation.
- Group 3: Ketamine IV anesthesia with spontaneous respiration.
- Rectal and skin temperatures were recorded every 15 minutes over a 2-hour anesthesia period.
Main Results:
- A significant reduction in mean body temperature was observed during the first and second hours of anesthesia, as well as post-extubation, across all groups.
- No statistically significant differences in mean body temperature were found between the halothane, methoxyflurane, and ketamine anesthesia groups.
- Mean body temperature demonstrated low informative value for individual patient thermal assessment.
Conclusions:
- The choice of anesthetic agent (halothane, methoxyflurane, or ketamine) did not significantly impact the degree of intraoperative hypothermia in this pediatric surgical population.
- Mean body temperature monitoring alone may be insufficient for comprehensive thermal balance assessment in pediatric anesthesia.
- Further research into more sensitive indicators of thermoregulation is warranted.
Abstract:
In forty-four children with total body surface amounting to 0.4-0.6 sq. m., and burnt surface ranging from 6 to 60 per cent, measurements of the mean body temperature are done during anesthesia with halothane, methoxyflurane and ketamine. Group one is made of 14 children anesthesized with halothane, nitrous oxide and oxygen in conditions of controlled ventilation; group two--16 children anesthesized with methoxyflurane, nitrous oxide and oxygen under controlled ventilation, and group three--14 children subjected to intravenous ketamine anesthesia with spontaneous respiration. Rectal and skin temperatures are registered at 15-minute intervals in the course of two-hour-long anesthesia. The mean body temperatures are calculated. The study results point to a significant temperature reduction on the first and second hour, and after extubation, but there are no differences between the individual groups. The mean body temperature has low informative value, and is mainly applied in thermal balance assessment.