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Updated: Jul 10, 2026

Development of a Neonatal Piglet Acute Lung Injury Model Recreating the Early Environment of Preterm Infant Lungs
Published on: October 31, 2025
Immediate respiratory management of the preterm infant
Sunil K Sinha1, Samir Gupta, Steven M Donn
1Paediatrics and Neonatal Medicine, University of Durham, Durham, UK. sunil.sinha@stees.nhs.uk
Insights
Premature infants often have underdeveloped lungs, leading to Respiratory Distress Syndrome (RDS). This review examines the pathophysiology of RDS and evidence for surfactant replacement therapy and CPAP to improve infant lung health.
Area of Science:
- Neonatal Medicine
- Pediatric Pulmonology
- Biomedical Science
Background:
- Premature infants exhibit underdeveloped lungs with morphological and biochemical abnormalities.
- Respiratory Distress Syndrome (RDS) is a primary cause of illness and death in premature neonates.
- Current treatments like surfactant replacement therapy and CPAP show benefits but their optimal use remains debated.
Purpose of the Study:
- To review the underlying pathophysiology of Respiratory Distress Syndrome (RDS).
- To evaluate the evidence supporting surfactant replacement therapy for RDS.
- To assess the evidence for continuous positive airway pressure (CPAP) in managing RDS.
Main Methods:
- Literature review of existing studies on RDS pathophysiology.
- Analysis of clinical trial data for surfactant replacement therapy.
- Examination of research on the efficacy of CPAP in premature infants.
Main Results:
- Detailed explanation of lung development abnormalities in preterm infants.
- Summary of surfactant therapy's role in RDS management.
- Overview of CPAP's effectiveness and application in neonatal care.
Conclusions:
- Understanding RDS pathophysiology is crucial for effective treatment.
- Evidence supports both surfactant therapy and CPAP, but optimal combination and timing require further research.
- This review provides a comprehensive overview to guide clinical practice in RDS management.
Abstract:
Infants born prematurely have underdeveloped lungs characterised by both morphological and biochemical abnormalities. Respiratory distress syndrome (RDS) is the leading cause of morbidity and mortality in this population. Both surfactant replacement therapy with mechanical ventilation and continuous positive airway pressure (CPAP) have been shown to be of benefit. However, considerable controversy exists about how best to use these therapies. This paper will review the pathophysiology of RDS and the evidence supporting each of these treatments.
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