Reply

Aly and Mohamed have submitted itemized comments on the summary of the NIH sponsored workshop on bronchopulmonary dysplasia (BPD). The comments reflect on the definition of BPD and its implications. A well-recognized concern is that all currently used definitions only include the oxygen and ventilatory treatments being delivered at a single gestational age, generally 36 weeks postconceptional age.1 There are currently no objective assessments of alveolar, vascular, and airway injuries. The inadequacy of using the therapy to define the disease can be resolved only with the development of predictive biomarkers and imaging technologies to better phenotype BPD.

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