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Updated: Jun 25, 2026

Development of a Neonatal Piglet Acute Lung Injury Model Recreating the Early Environment of Preterm Infant Lungs
Published on: October 31, 2025
Pathogenesis and prevention of chronic lung disease in the neonate
Debbie Fraser Askin1, William Diehl-Jones
1Faculty of Nursing, University of Manitoba, Winnipeg, Manitoba, Canada. debbie_fraser@umanitoba.ca
Insights
Chronic lung disease (CLD), also known as bronchopulmonary dysplasia (BPD), affects premature infants. This review explores its causes, lung development, and current prevention and treatment strategies.
Area of Science:
- Neonatal Medicine
- Pediatric Pulmonology
Background:
- Bronchopulmonary dysplasia (BPD), or chronic lung disease (CLD), is a significant cause of morbidity and mortality in extremely low birth weight infants (<1000 g).
- It often develops in infants requiring prolonged oxygen therapy and positive pressure ventilation.
- Despite research, the exact etiology and pathogenesis of BPD remain incompletely understood.
Purpose of the Study:
- To review the embryologic development of the lung in relation to BPD.
- To discuss the pathogenesis of CLD/BPD.
- To examine current and historical measures for BPD prevention and treatment.
Main Methods:
- Literature review of embryologic lung development.
- Review of pathogenesis studies for CLD/BPD.
- Synthesis of data on preventative and therapeutic interventions for BPD.
Main Results:
- The review details lung development and how it is disrupted in BPD.
- Pathogenic mechanisms contributing to CLD/BPD are discussed.
- Various strategies for preventing and treating BPD are presented.
Conclusions:
- Understanding lung development and pathogenesis is crucial for addressing BPD.
- Continued research is needed to improve preventative and therapeutic approaches for BPD in vulnerable infants.
Abstract:
Often used interchangeably, chronic lung disease (CLD) or bronchopulmonary dysplasia (BPD) develops primarily in extremely low birth weight infants weighing <1000 g who receive prolonged oxygen therapy and or positive pressure ventilation. CLD, which occurs in as many as 30 percent of infants born weighing <1000 g, contributes significantly to the morbidity and mortality seen in very low birth weight infants. Despite extensive research aimed at identifying risk factors and devising preventative therapies, many questions about the etiology and pathogenesis of BPD remain. This article reviews the embryologic development of the lung and the pathogenesis of CLD or BPD. The authors discuss some of the measures that have been used in an attempt to both prevent and treat BPD.
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