Body Weight Growth After Birth and Bronchopulmonary Dysplasia

Association of Body Weight Growth After Birth and Bronchopulmonary Dysplasia(BPD)

Bronchopulmonary dysplasia (BPD) is one of the most common, complex, and severe diseases in preterm infants. BPD was first described as chronic pulmonary disease in survivors of severe respiratory distress syndrome (RDS) in 1967, which was also called as the "old" BPD. In recent years, the definition for BPD has developed a lot. The National Institute of Child Health and Human Development (NICHD) workshop in 2018 assessed BPD at 36 post-menstrual age (PMA) along with radiographic confirmation and used a severity grading of I-III. Although with effective surfactant supplement and oxygen support, BPD brings a great challenge to neonatologists.

Besides persistent inflammation, prolonged invasive ventilation and oxidative damage. body weight is the one of the most important factors to induce BPD. Poor extrauterine growth is commonly described in extremely preterm infants. But, the relationship of postnatal growth with BPD and respiratory morbidity is not entirely understood.

The aim of the present study is to assess whether body weight growth after birth is the risk factor for BPD.

Inclusion Criteria:

• equal to or less than 32 weeks' gestational age

Exclusion Criteria:

• main congenital malformation
• parents' refusal