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Published on: December 17, 2014
Bronchopulmonary dysplasia
John P Kinsella1, Anne Greenough, Steven H Abman
1Department of Paediatrics, University of Colorado School of Medicine, Denver, USA. John.kinsella@uchsc.edu
Insights
Bronchopulmonary dysplasia (BPD) is a chronic lung disease affecting premature infants, increasing hospital readmissions and long-term respiratory issues. Research is exploring new therapies to reduce lung injury and improve lung growth in affected infants.
Area of Science:
- Neonatology
- Pediatric Pulmonology
- Chronic Lung Disease
Background:
- Bronchopulmonary dysplasia (BPD) is a significant cause of morbidity and mortality in premature infants.
- Increased survival rates of extremely premature infants have led to a rise in BPD cases.
- BPD imposes a substantial burden on healthcare resources due to frequent hospital readmissions and persistent respiratory symptoms into adolescence.
Purpose of the Study:
- To address the evolving understanding of BPD, including the "new BPD" characterized by chronic oxygen dependency without severe acute respiratory distress.
- To investigate the potential for impaired postnatal lung growth as a cause of "new BPD".
- To explore the unknown factors regarding catch-up lung growth in these infants, particularly concerning postnatal corticosteroid use.
Main Methods:
- Review of current literature on BPD pathogenesis and clinical outcomes.
- Analysis of the changing definitions and clinical presentations of BPD.
- Identification of knowledge gaps concerning lung growth and therapeutic interventions.
Main Results:
- The definition of BPD has evolved, with "new BPD" emerging in infants without severe acute respiratory distress, potentially linked to impaired lung growth.
- Infants with BPD experience significant long-term respiratory issues and require frequent healthcare utilization.
- The efficacy of postnatal corticosteroids on catch-up lung growth in BPD is currently unknown.
Conclusions:
- Bronchopulmonary dysplasia presents an ongoing challenge in neonatal care, with increasing prevalence.
- Further research is needed to understand the mechanisms of impaired lung growth in "new BPD".
- Development of safe and effective preventive therapies and treatments to improve lung growth is a critical area for future study.
Abstract:
Bronchopulmonary dysplasia is a chronic lung disease that affects premature babies and contributes to their morbidity and mortality. Improved survival of very immature infants has led to increased numbers of infants with this disorder. This increase puts a heavy burden on health resources since these infants need frequent re-admission to hospital in the first 2 years after birth and, even as adolescents, have lung-function abnormalities and persistent respiratory symptoms. Unlike the original description of the disease in 1967, premature infants can develop chronic oxygen dependency without severe, acute respiratory distress; this "new bronchopulmonary dysplasia" could be the result of impaired postnatal lung growth. Whether such infants subsequently have catch-up lung growth, especially if given corticosteroids postnatally, is unknown. No safe and effective preventive therapy has been identified, but promising new treatments directed either at reducing lung injury or improving lung growth are under study.
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