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Updated: Jun 10, 2026

Development of a Neonatal Piglet Acute Lung Injury Model Recreating the Early Environment of Preterm Infant Lungs
Published on: October 31, 2025
Acute lung injury in preterm newborn infants: mechanisms and management
Mallinath Chakraborty1, Eamon P McGreal, Sailesh Kotecha
1Department of Child Health, School of Medicine, Cardiff University, Heath Park, Cardiff, United Kingdom. chakrabortym@cardiff.ac.uk
Insights
Preterm infants often suffer lung injury due to immature lungs and inflammation. This review covers injury mechanisms, clinical signs, and current treatments for acute lung injury in premature babies.
Area of Science:
- Neonatology
- Pediatric Pulmonology
- Neonatal Intensive Care
Background:
- Preterm infants face significant risks of respiratory morbidity and mortality.
- Immature lungs in premature infants are highly susceptible to injury, often initiated in utero.
- Maternal chorioamnionitis can prime the fetal lung for subsequent injury from postnatal factors like ventilation and oxygen therapy.
Purpose of the Study:
- To review the mechanisms of acute lung injury (ALI) in preterm infants.
- To discuss the clinical manifestations and correlates of ALI in this vulnerable population.
- To summarize current and emerging therapeutic strategies for preventing or limiting ALI in preterm neonates.
Main Methods:
- Literature review of studies on preterm infant lung injury.
- Analysis of the role of pulmonary inflammation in the pathogenesis of ALI.
- Synthesis of information on clinical outcomes and treatment efficacy.
Main Results:
- Pulmonary inflammation is a key factor in the development of ALI in preterm infants.
- Factors such as chorioamnionitis, mechanical ventilation, and oxygen exposure contribute to lung injury.
- Various therapeutic interventions have been explored to mitigate lung injury.
Conclusions:
- Understanding the mechanisms of ALI is crucial for developing effective preventative and therapeutic strategies.
- Early identification and management of inflammation may reduce respiratory complications in preterm infants.
- Further research is needed to optimize treatments for lung protection in neonates.
Abstract:
Respiratory morbidity and mortality remain common in preterm infants. The immature preterm lung is especially prone to injury. This process often starts in-utero due to maternal chorioamnionitis, priming the lung for further injury in response to post-natal ventilation, oxygen and nosocomial infection. Pulmonary inflammation has been strongly implicated in the pathway leading to lung injury in this population of infants. Several therapeutic approaches have been attempted to prevent acute lung injury or to limit its progress. The mechanisms of acute lung injury in preterm infants; their clinical correlates and available therapeutic approaches are reviewed here.
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