Lung function response to postnatal corticosteroids for the prevention and treatment of bronchopulmonary dysplasia.

We found that respiratory system reactance (Xrs) and lung ultrasound score (LUS) are sensitive biomarker for monitoring changes in lung function associated with corticosteroids; Combining Xrs and LUS enhances evaluation compared to each method alone; These results have valuable implications in clinical practice, particularly in personalizing and monitoring corticosteroid treatment; The present paper suggests that the combined use of respiratory oscillometry and lung ultrasound holds value as a research tool in future studies investigating various treatment regimens, molecules, or administration routes.