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Published on: October 31, 2025
Bronchopulmonary dysplasia: new becomes old again!
1Department of Pediatrics, Division of Neonatology, The Medical University of South Carolina, Charleston, South Carolina.
Bronchopulmonary dysplasia (BPD) in premature infants is evolving. Current definitions focus on developmental interruption, highlighting pulmonary vascular disease as a key area for understanding this complex condition.
Area of Science:
- Neonatology
- Pediatric Pulmonology
- Developmental Biology
Background:
- Bronchopulmonary dysplasia (BPD) remains a significant challenge in neonatology.
- Its definition has shifted from lung injury to disrupted development due to improved survival rates of extremely preterm infants.
Observation:
- The "old" BPD described lung injury from oxygen and ventilation.
- The "new" BPD emphasizes interrupted normal development, extending beyond lung growth.
Findings:
- Pulmonary vascular disease is increasingly recognized as a critical component of BPD.
- Prematurity profoundly impacts vascular development, making it a new frontier in BPD research.
Implications:
- Understanding the multifactorial pathophysiology of BPD is crucial.
- Developing pathology-driven nomenclature is necessary to accurately describe diverse BPD clinical phenotypes.
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