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Updated: Oct 18, 2025

Laryngeal Mask Airway LMA Placement in a Neonatal Patient Simulator Using a Non-Inflatable Supraglottic Airway SGA
Published on: July 14, 2023
Surfactant Administration Through Laryngeal or Supraglottic Airways
Scott O Guthrie1,2, Prem Fort3,4,2, Kari D Roberts5
1Department of Pediatrics, Division of Neonatology, Vanderbilt University School of Medicine, Nashville, TN.
Minimally invasive surfactant administration, particularly via laryngeal mask airway, can improve noninvasive ventilation success in preterm infants with respiratory distress syndrome. This approach offers an alternative to intubation for surfactant delivery.
Area of Science:
- Neonatal Medicine
- Pulmonology
- Medical Devices
Background:
- Noninvasive ventilation (NIV) is common for infant respiratory distress syndrome (RDS).
- NIV success is limited in preterm infants due to severe surfactant deficiency and lung non-compliance.
- Intubation carries risks, prompting development of less invasive surfactant delivery methods.
Purpose of the Study:
- To review minimally invasive surfactant administration (MISA) techniques.
- To focus on surfactant delivery via laryngeal mask airway (LMA) or supraglottic airway (SGA).
- To provide a procedural guide for LMA/SGA surfactant administration.
Main Methods:
- Review of historical data, animal studies, and human trials on MISA.
- Comparison of LMA/SGA surfactant delivery with other MISA techniques.
- Development of a step-by-step instructional guide with multimedia support.
Main Results:
- Several MISA methods exist, including thin catheter, aerosolization, and LMA/SGA.
- LMA/SGA offers a potential alternative to endotracheal intubation for surfactant delivery.
- Current FDA-approved surfactant delivery is via endotracheal tube; other methods are off-label.
Conclusions:
- Minimally invasive surfactant administration, especially via LMA/SGA, may enhance NIV success in preterm infants.
- Further research and clinical adoption of off-label MISA techniques are warranted.
- Procedural guidance is crucial for safe and effective LMA/SGA surfactant administration.
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