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Sevoflurane in paediatric anaesthesia: effects on respiration and circulation during induction and recovery
Insights
Sevoflurane anesthesia in children showed faster induction and quicker recovery compared to halothane. Sevoflurane is a suitable agent for pediatric anesthesia induction under spontaneous respiration.
Area of Science:
- Anesthesiology
- Pediatric Anesthesia
- Respiratory Physiology
Background:
- Inhalational anesthetics are commonly used for pediatric anesthesia.
- Assessing anesthetic agents for spontaneous respiration induction is crucial for patient safety.
- Sevoflurane and halothane are frequently used agents in pediatric anesthesia.
Purpose of the Study:
- To compare sevoflurane and halothane for anesthetic induction in pediatric patients breathing spontaneously.
- To evaluate induction/recovery times and cardiorespiratory changes during sevoflurane vs. halothane anesthesia.
Main Methods:
- Paediatric patients were induced with sevoflurane (S group, n=10) or halothane (H group, n=9) at 2.4 MAC.
- Respiratory and cardiovascular parameters were monitored during induction and recovery.
- End-tidal anesthetic concentrations (FET/FI) and recovery metrics were analyzed.
Main Results:
- Sevoflurane group exhibited faster FET/FI increase, less breath-holding/coughing, and shorter recovery times.
- Both agents caused decreased minute ventilation/bodyweight due to reduced tidal volume/bodyweight.
- Sevoflurane showed a slight decrease in blood pressure; halothane did not exhibit circulatory depression during induction.
Conclusions:
- Sevoflurane is a suitable agent for pediatric anesthesia induction under spontaneous respiration at higher concentrations.
- Sevoflurane offers advantages in terms of faster induction and recovery compared to halothane.
- Careful monitoring of cardiorespiratory effects is essential during sevoflurane and halothane anesthesia in children.
Abstract:
This study examined induction and recovery times and respiratory and cardiovascular changes during induction and recovery in paediatric patients undergoing anaesthesia under spontaneous respiration induced with sevoflurane (S group, n = 10) and halothane (H group, n = 9) at 2.4 MAC. FET/FI increased more rapidly, the incidence of breath holding and coughing was less and the recovery time was shorter in the S group compared with the H group. During induction with sevoflurane at 2.4 MAC, min vol/bodyweight decreased due to reduced tidal vol/bodyweight despite increased respiratory frequency, as with halothane at the same MAC. Slight decrease in blood pressure was observed during induction in the S group, while the circulatory depression was not observed during induction in the H group. These results suggest that sevoflurane is a suitable agent for induction under spontaneous respiration with higher concentrations in paediatric anaesthesia.