支气管肺发育不良(bronchopulmonary dysplasia,BPD)1967年由Northway等首次报道并命名,是早产儿常见的慢性呼吸系统疾病,具有独特的临床、组织学及影像学特征。近半个世纪以来,随着我国围产医学的发展,极低出生体重儿和超低出生体重儿存活率明显增加,BPD发病率有逐年上升的趋 Bronchopulmonary dysplasia (BPD) was first reported and named by Northway et al in 1967. It is a common chronic respiratory disease in preterm infants and has unique clinical, histological and radiological features. Nearly half a century, with the development of perinatal medicine in our country, the survival rate of very low birth weight children and very low birth weight children increased significantly, and the incidence of BPD increased year by year