This study aimed to fill this knowledge gap and designed a multicentre cohort study to verify the hypothesis that LUS has good reliability to predict BPD in China and to compare the predictive value of LUS and clinical models for the development of BPD at different time points in infants born before and after 28 weeks.
Preterm infants with GA <32 weeks.
Infants with enrollment within 24 hours from birth
Parental written consent is obtained.
Complex congenital malformations or chromosomal abnormalities
Congenital lung diseases or congenital heart defects
Infants with enrollment after 24 hours from birth