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Updated: Jul 11, 2026

Development of a Neonatal Piglet Acute Lung Injury Model Recreating the Early Environment of Preterm Infant Lungs
Published on: October 31, 2025
[Bronhopulmonary dysplasia]
1Barne- og ungdomsklinikken, Akershus universitetssykehus, 1478 Lørenskog. teresa.farstad@ahus.no
Insights
Bronchopulmonary dysplasia (BPD) remains a significant complication for premature infants, particularly those born weighing less than 1000g. Despite advances, its multifactorial etiology and limited treatment success highlight ongoing challenges in neonatal care.
Area of Science:
- Neonatology
- Pediatric Pulmonology
- Perinatal Medicine
Context:
- Bronchopulmonary dysplasia (BPD) is a chronic lung disease affecting premature infants.
- While severe BPD is less common in infants born after 32 weeks gestation, it remains a frequent complication of severe prematurity.
- Between 40-60% of infants weighing < 1000g at birth are diagnosed with BPD, depending on criteria.
Purpose:
- To review recent publications on bronchopulmonary dysplasia (BPD).
- To discuss the etiology, prophylaxis, management, and diagnostic criteria of BPD.
- To highlight current understanding and challenges in BPD research and clinical practice.
Summary:
- BPD is a multifactorial condition influenced by prematurity, intrauterine factors, genetics, inflammation, oxygen toxicity, and ventilator treatment.
- The exact etiology of BPD is not fully understood, as it can occur in infants with minimal or no ventilatory support.
- Current strategies for BPD prevention and treatment have shown limited success.
Impact:
- Understanding the multifactorial nature of BPD is crucial for developing targeted prevention and treatment strategies.
- Further research is needed to elucidate the complex etiology of BPD and improve outcomes for extremely premature infants.
- This review provides a foundation for future investigations into novel therapeutic approaches for BPD.
Background:
Since bronchopulmonary dysplasia (BPD) was first described 40 years ago, the epidemiology of premature infants has changed considerably. With improved prenatal and obstetrical care and improved/less invasive ventilatory support, severe BPD is now rarely seen in infants born after 32 weeks gestational age, but it is still the most frequent complication to severe prematurity. Depending on the diagnostic criteria, between 40-60% of the infants weighing < 1000 g at birth have BPD.
Material And Methods:
Selected recent publications on BPD, with focus on etiology, prophylaxis, management and more recent diagnostic criteria form the basis for the article and discussions.
Results And Interpretation:
BPD is a multifactorial condition, where the degree of prematurity plays an important role. Intrauterine environmental factors, genetics, inflammation, oxygen toxicity and ventilator treatment in acute Respiratory Distress Syndrome are also of importance. Much is still uncertain concerning the etiology, and BPD is also seen in infants with no or minimal ventilatory support. As a consequence, present strategies for prevention or treatment of BPD have so far been of only limited success.
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