Related Experiment Video
Updated: Aug 18, 2026

Guidelines for Elective Pediatric Fiberoptic Intubation
Published on: January 17, 2011
[Inhalational anesthesia during adenoidectomy in children]
Insights
Inhalational fluoroethane-monooxide-oxygen anesthesia is inadequate for adenotomy in children without analgesics. Both apparatus-mask and endotracheal methods show significant limitations in pain management and hemodynamic stability across different age groups.
Area of Science:
- Anesthesiology
- Pediatric Surgery
- Pharmacology
Background:
- Adenotomy is a common pediatric surgical procedure.
- Anesthesia management in children requires careful consideration of age-specific physiological differences.
- Fluoroethane-monooxide-oxygen (FMO) mixture is used for inhalational anesthesia.
Purpose of the Study:
- To compare the efficacy and safety of apparatus-mask versus endotracheal inhalational anesthesia with FMO-oxygen mixture during pediatric adenotomy.
- To evaluate hemodynamic parameters, cardiointervalography, respiration rate, and oxygen saturation (SatO2) in different age groups.
- To assess the adequacy of analgesia and the incidence of pain syndrome and sympathicotony.
Main Methods:
- Comparative study involving 108 children aged 4-15 years undergoing adenotomy.
- Patients were divided into apparatus-mask (n=51) and endotracheal (n=57) anesthesia groups.
- Two age subgroups were analyzed: 4-8 years and 8-15 years.
- Central hemodynamics, cardiointervalograms, respiration rate, and SatO2 were monitored repeatedly during anesthesia and surgery.
Main Results:
- Inhalational FMO-oxygen anesthesia was inadequate for adenotomy in children without analgesics.
- In 4-8-year-olds, apparatus-mask anesthesia was ineffective, leading to hemodynamic instability and postoperative pain.
- Endotracheal anesthesia in this age group also failed to provide adequate analgesia, causing pain and sympathicotony.
- In 8-15-year-olds, apparatus-mask anesthesia resulted in pre-hypoxia and inadequate surgical defense.
- Endotracheal anesthesia maintained cardiac output stability but showed significant sympathicotony during surgery and postoperative agitation.
Conclusions:
- Fluoroethane-monooxide-oxygen inhalational anesthesia, in both apparatus-mask and endotracheal forms, is insufficient for pediatric adenotomy without adjunctive analgesics.
- Age-specific responses highlight the ineffectiveness of these methods in younger children (4-8 years) and the limitations in providing adequate pain control and hemodynamic stability in older children (8-15 years).
- Further research into optimized anesthetic protocols, including analgesic supplementation, is warranted for safe and effective adenotomy in pediatric patients.
Abstract:
The paper deals with the comparison of inhalational anesthesia using a fluoroethane-monooxide-oxygen mixture in apparatus-mask and endotracheal fashions in children during adenotomy. Children aged 4 to 15 years, who had undergone apparatus-mask (n = 51) and endotracheal (n = 57) anesthesia, were examined. The patients were divided into two age groups: 4-8 years and 8-15 years. The parameters of central hemodynamics, the data of cardiointervalograms, respiration rate, and SatO2 were studied. The studies were repeated 5 times for each patient at the stages of anesthesia and surgery. The use of inhalational fluroethane-monoxide-oxygen anesthesia in apparatus-mask and endotracheal fashions was found to be inadequate in children during adenotomy without addition of analgesics. In 4-8-year-old children, apparatus-mask fluoroethane-monooxide-oxygen anesthesia during surgery is ineffective, as shown by the data of central hemodynamics and cardiointervalography. The pain syndrome was observed in the postoperative period. Endotracheal fluoroethane-monooxide-oxygen anesthesia fails to ensure adequate analgesia during intubation and surgery. The pain syndrome and sympathicotony were seen in the postoperative period. In 8-15-year-old children, apparatus-mask fluoroethane-monooxide-oxygen anesthesia is characterized by prehypoxia and inadequate anesthesiological defense at the traumatic stage of an operation. In endotracheal fluoroethane-monooxide-oxygen anesthesia, the stability of cardiac output is maintained by the tension of more mature compensatory mechanisms responsible for regulation of central hemodynamics. A marked sympathicotony is noted at the traumatic stage of a surgery, as evidenced by cardiointervalography. There is motor agitation in the postoperative period.
Related Concept Videos
Inhalational Anesthetics: Overview
Parenteral Anesthetics: Overview
Suctioning the Nasopharyngeal Airway
Equipment Required
General Anesthesia: Overview
General anesthesia induces unconsciousness in the whole body, while the others target specific areas or sensations. It is administered to minimize adverse effects, maintain...
Stages of General Anesthesia
Adrenergic Agonists: Therapeutic Uses
Emergency and Intensive Care Unit (ICU) applications: Pressor agents increase blood pressure, heart rate, and contractility in shock and organ failure situations. Dopamine can induce vasodilation and stimulate adrenoceptors. Endogenous catecholamines are effective in treating cardiogenic shock. α2-agonists like clonidine can reverse anesthesia-induced hypertension.
Allergies and anaphylaxis:...

