J Korean Soc Neonatol.  2010 May;17(1):21-33.

Clinical Characteristics of Bronchopulmonary Dysplasia by Type and Severity

• Shim GH
• Lee HJ
• Kim ES
• Lee JA
• Choi CW
• Kim EK
• Kim HS
• Kim BI
• Choi JH

Abstract

PURPOSE
The increased survival of preterm infants in the neonatal intensive care unit recently has resulted in an increased frequency of bronchopulmonary dysplasia (BPD), especially with atypical forms. However, there have been few studies compairing classic and atypical BPD. The aim of this study was to investigate the differences between these two types of BPD.
METHODS
Infants with a gestational age less than 32 weeks born at the Seoul National University Hospital and Bundang Seoul National University Hospital from May 2004 to April 2007 were included. The data were categorized in 2 groups, classic and atypical BPD. We determined the incidence of BPD, and compared perinatal factors and postnatal managements between two groups.
RESULTS
Among 260 study subjects, 141 (54.2%) infants had BPD. Classic BPD infants were 64 and atypical BPD infants were 77. Comparison of differences between 2 groups, classic BPD infants were associated with respiratory distress syndrome, patent ductus arteriosus, intrauterine growth restriction, more high-frequency ventilator (HFV) use, low 1 and 5 minute Apgar scores. Atypical BPD infants were associated with antenatal steroid use, maternal premature rupture of membrane and chorioamnionitis (CAM). In multivariate analysis, more HFV use was associated with classic BPD. Antenatal steroid use, clinical CAM and histological CAM were associated with atypical BPD.
CONCLUSION
The results of this study showed that antenatal factors (antenatal steroid use, clinical CAM, histological CAM) were associated with atypical BPD and postnatal factors (HFV used more) were associated with classic BPD. Further studies are needed for prevention and treatment of BPD.

Keyword

Classic bronchopulmonary dysplasia; Atypical bronchopulmonary dysplasia; Chorioamnionitis

MeSH Terms

Bronchopulmonary Dysplasia
Chorioamnionitis
Ductus Arteriosus, Patent
Female
Gestational Age
Humans
Incidence
Infant
Infant, Newborn
Infant, Premature
Intensive Care, Neonatal
Membranes
Multivariate Analysis
Pregnancy
Rupture
Ventilators, Mechanical