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Effects of halothane and isoflurane on beta-endorphin release in children
M J Garcia-Sanchez1, A Polo, F Peran
1Servicio de Anestesiología y Reanimación, Ciudad Sanitaria Virgen de las Nieves, Granada, Spain.
Insights
Isoflurane anesthesia in children aged 1-6 years showed higher beta-endorphin release compared to halothane. This suggests isoflurane offers a stronger surgical stress adaptation effect during pediatric anesthesia.
Area of Science:
- Anesthesiology
- Pediatric Anesthesia
- Endocrinology
Background:
- Inhaled anesthetics like halothane and isoflurane are used in pediatric anesthesia.
- Beta-endorphins play a role in the body's stress response.
- Understanding the neuroendocrine effects of different anesthetic agents is crucial for patient care.
Purpose of the Study:
- To compare the effects of halothane and isoflurane on plasma beta-endorphin concentrations in children.
- To evaluate hemodynamic changes associated with each anesthetic agent.
- To determine which anesthetic agent provides a more significant surgical stress adaptation.
Main Methods:
- A comparative study involving 14 children aged 1 to 6 years.
- Administration of halothane or isoflurane with 50% nitrous oxide.
- Measurement of plasma beta-endorphin concentrations during basal, induction, maintenance, and recovery periods.
- Monitoring of hemodynamic parameters including heart rate and blood pressure.
Main Results:
- Plasma beta-endorphin concentrations were significantly increased with isoflurane, particularly during the maintenance phase.
- Diastolic blood pressure was significantly lower following isoflurane anesthesia.
- Halothane group showed less pronounced beta-endorphin elevation.
Conclusions:
- Isoflurane anesthesia in pediatric patients leads to a more pronounced surgical stress adaptation compared to halothane.
- Isoflurane may offer superior neuroendocrine stress modulation in children undergoing anesthesia.
- Further research into the long-term implications of these findings is warranted.
Abstract:
We compared the effects of halothane and isoflurane with 50% nitrous oxide (seven children each) on plasma beta-endorphin concentrations in a group of 14 children aged 1 to 6 years. The findings were compared for four periods of anaesthesia: basal, induction, maintenance and recovery. Beta-endorphin release was most increased with isoflurane, especially during the maintenance period. Measurements of haemodynamic parameters (heart rate and blood pressure) showed diastolic blood pressure significantly lower after isoflurane anaesthesia. The findings suggest that the use of isoflurane for paediatric inhaled isoflurane anaesthesia leads to a more marked surgical stress adaptation effect than the use of halothane.