Mask Ventilation
Mask ventilation is a fundamental technique in pediatric airway management and is vital for maintaining adequate oxygenation. It can be performed using one- or two-hand techniques, depending on the child’s size and the need for control. One-handed mask ventilation is usually sufficient for smaller children, while two-handed techniques may be required for better control and to mitigate airway obstruction. Pediatric patients are more prone to airway obstruction due to their larger tongue and smaller mandible, so maneuvers such as head tilt, chin lift, and jaw thrust are essential for keeping the airway open. In cases of upper airway obstruction, placing the child in a lateral position can help improve ventilation. Additionally, continuous positive airway pressure (CPAP) can be applied during mask ventilation to prevent airway collapse, though it’s important to remember that mask ventilation increases dead space, particularly in smaller children with lower tidal volumes.
Use of Oral and Nasopharyngeal Airways
Oral and nasopharyngeal airways are often used to relieve upper airway obstruction, especially during mask ventilation. In anesthetized children, the tongue may easily collapse and obstruct the airway. An oral airway helps to maintain an open airway, and the appropriate size is determined by measuring from the anterior gum line to the angle of the mandible. Nasopharyngeal airways are useful when oral airways are contraindicated or ineffective, as they bypass upper airway obstructions and can also serve as conduits for oxygen, anesthetic gasses, or CO₂ monitoring in cases where fiber-optic intubation is necessary.
Endotracheal Intubation
Endotracheal intubation remains the standard for securing the airway in pediatric patients who require mechanical ventilation or prolonged airway control. Direct laryngoscopy is typically used, with blade choice based on the patient’s age and airway anatomy. The straight Miller blade is often preferred in younger children to lift the epiglottis directly, while the curved Macintosh blade may be used in older children. Cuffed endotracheal tubes are now favored in pediatric airway management as they provide better ventilation control and minimize the risk of subglottic trauma. While uncuffed tubes were historically preferred to reduce airway resistance and avoid trauma, recent evidence supports the safety and effectiveness of cuffed tubes in children.
| Technique | How it is done | Why it matters |
|---|---|---|
| One- versus two-handed mask ventilation | One hand is usually sufficient in smaller children; the choice depends on the child's size and the need for control | Two hands give better control and mitigate airway obstruction when one hand is insufficient |
| Airway-opening maneuvers | Head tilt, chin lift and jaw thrust | Essential to keep the airway open, since children obstruct readily from a larger tongue and smaller mandible |
| Lateral positioning | Turn the child onto their side when the upper airway is obstructed | Improves ventilation in upper airway obstruction |
| CPAP during mask ventilation | Apply continuous positive airway pressure while masking | Prevents airway collapse; note that mask ventilation itself increases dead space, particularly in smaller children with lower tidal volumes |
| Oral airway | Size by measuring from the anterior gum line to the angle of the mandible | Holds the airway open when the tongue collapses against it in the anesthetized child |
| Nasopharyngeal airway | Use when an oral airway is contraindicated or ineffective | Bypasses upper airway obstruction and can serve as a conduit for oxygen, anesthetic gases or CO2 monitoring when fiberoptic intubation is needed |
| Laryngoscope blade choice | The straight Miller blade is often preferred in younger children; the curved Macintosh may be used in older children | Blade choice is matched to the patient's age and airway anatomy at direct laryngoscopy, the usual approach when a child needs mechanical ventilation or prolonged airway control |
| Cuffed versus uncuffed endotracheal tube | Cuffed tubes are now favored in pediatric airway management | Better ventilation control and less subglottic trauma; uncuffed tubes were historically preferred to reduce resistance and avoid trauma, but recent evidence supports cuffed tubes in children |
