Predicting Clinical Outcomes of Severe Bronchopulmonary Dysplasia through New Definitions and Phenotypes

Abstract

Objective

This study aimed to compare the accuracy of three newly proposed definitions of bronchopulmonary dysplasia (BPD) in predicting outcomes, and to investigate the impact of large airway versus parenchymal versus vascular BPD phenotypes on BPD outcomes.

Study Design

Retrospective chart review of 100 infants with severe BPD discharged from a Children's hospital between 2020 and 2021. Multivariable models evaluated the associations between BPD definitions and phenotypes with tracheostomy and death at 6 months and 1 year after NICU discharge. Secondary outcomes included the need for respiratory support, the use of pulmonary medications, and the need for long-term gastrostomy feeding.

Result

Neonatal research network (NRN) and BPD collaborative criteria best-predicted outcomes associated with tracheostomy and/or death (p < 0.001). Among the three BPD phenotypes, large airway disease was independently associated with death or tracheostomy (odds ratios [OR]: 10.5; 95% confidence interval [CI]: 1.6, 68.1). The combination of all three phenotypes was also associated with death or tracheostomy (OR: 9.8; 95% CI: 1.0, 93.5). Both NRN and BPD collaborative definitions showed an association with the need for respiratory support, medication use, and need for long-term gastrostomy tube feeding. Among the 29 infants for whom complete information was available, 18 (62%), 20 (69%), and 18 (62%) had parenchymal, central airway and pulmonary vascular phenotype, respectively.

Conclusion

Our results indicate that newer definitions of BPD may better predict the severity of BPD and the need for long-term invasive ventilation support compared with the 2001 National Institute of Health definition of BPD phenotypes impacting mortality and short-term outcomes. These data may be useful for counseling families and developing phenotype-based individualized treatment plans.

Key Points

• The current definition of BPD has limitations.

• New definitions of BPD better predict outcomes.

• BPD phenotypes can better predict outcomes.

Keywords

bronchopulmonary dysplasia - BPD classification - tracheostomy - BPD phenotypes

Publikationsverlauf

Eingereicht: 04. September 2024

Angenommen: 03. März 2025

Accepted Manuscript online:
04. März 2025

Artikel online veröffentlicht:
29. März 2025

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