Abstract
Bronchopulmonary dysplasia (BPD) is a common complication of prematurity that results from abnormal lung development and leads to chronic impairment of lung function in later life. Multiple diagnostic criteria have been developed over the years to define BPD and determine its severity and long-term prognosis. Here we provide a brief update on the changes in epidemiology of BPD, present the rationale behind proposed diagnostic and severity criteria, and discuss their advantages and limitations in face of the changing epidemiology and management of BPD.