Definitions and Diagnostic Criteria of Bronchopulmonary Dysplasia: Clinical and Research Implications

Abstract Bronchopulmonary dysplasia (BPD) is a common complication of prematurity that results from abnormal lung development that leads to chronic impairment of lung function. 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 the 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.