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A Narrative Review of Oxygenation During Pediatric Intubation and Airway Procedures
Scott D N Else1, Pete G Kovatsis2
1From the Department of Anesthesiology and Pain Medicine, Stollery Children's Hospital, Edmonton, Alberta, Canada.
Insights
Apneic oxygenation with humidified, high-flow nasal oxygenation can significantly reduce hypoxemia during pediatric airway procedures. This approach enhances safety for infants and children undergoing anesthesia by prolonging safe apnea times.
Area of Science:
- Pediatric Anesthesiology
- Respiratory Physiology
- Critical Care Medicine
Background:
- Hypoxemia is a frequent complication during pediatric airway procedures, increasing the risk of adverse events.
- Infants and children face higher risks due to metabolic demands and alveolar collapse under anesthesia.
- Mitigating hypoxemia is crucial for improving patient safety in this population.
Purpose of the Study:
- To evaluate the efficacy of apneic oxygenation combined with humidified, high-flow nasal oxygenation in pediatric patients.
- To determine if these methods can reduce the incidence of hypoxemia and related complications in the operating room.
- To assess the benefits for both intubation and spontaneous ventilation procedures.
Main Methods:
- Review of existing literature on apneic oxygenation and humidified, high-flow nasal oxygenation in pediatric populations.
- Analysis of physiological principles supporting oxygen delivery and airway management.
- Assessment of clinical outcomes related to hypoxemia and desaturation events.
Main Results:
- Apneic oxygenation significantly extends safe apnea time until desaturation in children.
- Humidified, high-flow nasal oxygenation provides effective conditions for apneic oxygenation and maintains oxygenation during spontaneous ventilation.
- These systems may minimize room air entrainment, allowing for deeper anesthesia.
Conclusions:
- Apneic oxygenation and humidified, high-flow nasal oxygenation are effective strategies to reduce hypoxemia in pediatric patients.
- These techniques enhance safety during endotracheal intubation and other airway procedures.
- Further research may explore carbon dioxide clearance benefits in children.
Abstract:
Hypoxemia is a common complication in the pediatric operating room during endotracheal intubation and airway procedures and is a precursor to serious adverse events. Small children and infants are at greater risk of hypoxemia due to their high metabolic requirements and propensity to alveolar collapse during general anesthesia. To improve the care and safety of this vulnerable population, continued efforts must be directed to mitigate hypoxemia and the risk of subsequent serious adverse events. Apneic oxygenation has been shown to significantly prolong the safe apnea time until desaturation in infants, children, and adults and may reduce the incidence of desaturation during emergency intubation of critically ill patients. Successful apneic oxygenation depends on adequate preoxygenation, patent upper and lower airways, and a source of continuous oxygen delivery. Humidified, high-flow nasal oxygenation systems have been shown to provide excellent conditions for effective apneic oxygenation in adults and children and have the added benefit of providing some carbon dioxide clearance in adults; although, this latter benefit has not been shown in children. Humidified, high-flow nasal oxygenation systems may also be useful during spontaneous ventilation for airway procedures in children by minimizing room air entrainment and maintaining adequate oxygenation allowing for a deeper anesthetic. The use of apneic oxygenation and humidified, high-flow nasal oxygenation systems in the pediatric operating room reduces the incidence of hypoxemia and may be effective in decreasing related complications.
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