Objective To investigate the risk factors, prevention and treatment of bronchopulmonarydysplasia(BPD) in very low birth weight infants(VLBWI).
目的探讨极低出生体质量儿（VLBWI）并支气管肺发育不良（BPD）的危险因素及预防对策。
2
Objective to study the incidence, risk factors, prophylaxis and treatment for bronchopulmonarydysplasia (BPD) in premature.
目的分析早产儿支气管肺发育不良(BPD)的发生率和危险因素，探讨防治BPD的措施。
3
Premature infants with bronchopulmonarydysplasia (BPD) is one of the most serious complications of newborn, it affected the quality of life in preterm children seriously.