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Intubation-mediated Intratracheal IMIT Instillation: A Noninvasive, Lung-specific Delivery System
Published on: November 17, 2014
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Less invasive surfactant administration for meconium aspiration syndrome
Arun Prasath1, Etze Chotzoglou2, Asmahan Ahmad3
1Division of Neonatology, University of Texas Southwestern Medical Center, Dallas, USA Arun.Prasath@UTSouthwestern.edu.
BMJ Paediatrics Open
|May 12, 2025
Summary
Less invasive surfactant administration (LISA) in infants with meconium aspiration syndrome (MAS) reduced the need for mechanical ventilation (MV) and shortened hospital stays. This approach shows promise for improving outcomes in MAS management.
Area of Science:
- Neonatal Medicine
- Pediatric Pulmonology
- Critical Care
Background:
- The management of meconium aspiration syndrome (MAS) remains a clinical challenge.
- The efficacy of less invasive surfactant administration (LISA) via a thin catheter in MAS is not well-established.
Purpose of the Study:
- To compare the outcomes of surfactant administration using mechanical ventilation (MV) versus LISA in infants with MAS.
- To evaluate the impact of LISA on respiratory support needs and hospital length of stay.
Main Methods:
- Retrospective study of infants with MAS between January 2016 and December 2023.
- Comparison of outcomes between endotracheal tube surfactant (ETT-surf) and LISA groups.
- Exclusion of infants intubated at birth.
Main Results:
- The LISA group showed a significantly lower need for MV (23% vs 100%, p<0.001) and inhaled nitric oxide (iNO) (12% vs 46%, p=0.01) compared to the ETT-surf group.
- Infants receiving LISA had a shorter median hospital stay (14 vs 24 days, p=0.04).
- Subgroup analysis confirmed reduced MV need and hospital stay in the LISA group for infants with hypoxic respiratory failure.
Conclusions:
- LISA is associated with reduced need for mechanical ventilation and inhaled nitric oxide.
- LISA may lead to a shorter hospital duration for select infants with MAS.
- Further prospective research is warranted to confirm the role of LISA in MAS management.

