Korean J Perinatol.  2009 Sep;20(3):225-233.

Epidemiology of Bronchopulmonary Dysplasia in Korea: Multi-Center Study

• Sung KH
• Kim MH
• Kim ER
• Shim JW
• Lee JJ
• Im JW
• Jin HS

Abstract

PURPOSE
As the neonatal intensive care advanced, the incidence of neonatal bronchopulmonary dysplasia (BPD) has increased. We conducted a multi-center investigation of the prevalence of BPD in six hospitals to investigate the epidemiology of BPD in Korea.
METHODS
Retrospective reviews ware performed for survival rate, prevalence of BPD of total 4,476 newborn infants who were admitted to neonatal intensive care unit in Konkuk university hospital, Sung-Ae General hospital, Kangbuk Samsung hospital, Chung-Ang university hospital, Konyang university hospital, and Gangneung Asan hospital between June, 2005 and May, 2007. By Ogawa, BPD was defined as oxygen dependency at 28 days after birth, with respiratory distress symptoms and the change of chest x-ray finding, and classified as 6 subtypes. Classic BPD was defined as oxygen dependency at 36 weeks of postmenstrual age.
RESULTS
Survival rate at 28 day after birth was 98.7%. BPD infants by Ogawa classification were 70 (1.6% of overall newborn infants), classic BPD infants were 30 (0.7%). Especially, among 237 preterm infants with birth weight less than 1,500 gram who survived to 28 days of life, 60 (25.3%) had BPD by Ogawa classification and 23 (9.7%) had classic BPD. In Ogawa classification, infants with RDS as type I and II, were 17 infants (24.3%) and 44 infants (62.9%). Home oxygen therapy was performed 8 infants (11.4%). Prevalence of retinopathy of prematurity was 35 infants (50.0%), necrotizing enterocolitis was 3 infants (4.3%), and intraventricular hemorrhage was 6 infants (8.6%).
CONCLUSION
Prevalence of BPD infants was 1.6% of overall newborn, 25.3% of preterm infants with birth weight less than 1,500 gram. Among 70 BPD infants, BPD by Ogawa classification with history of RDS as type I and II were 24.3%, 62.9% as the majority of BPD. This study would be the first report of epidemiology of Korean BPD infants by multi-center study.

Keyword

Bronchopulmonary dysplasia; Respiratory distress syndrome; Ogawa classification; Preterm infant

MeSH Terms

Birth Weight
Bronchopulmonary Dysplasia
Dependency (Psychology)
Enterocolitis, Necrotizing
Glycolates
Hemorrhage
Hospitals, General
Humans
Incidence
Infant
Infant, Newborn
Infant, Premature
Intensive Care, Neonatal
Oxygen
Parturition
Prevalence
Retinopathy of Prematurity
Retrospective Studies
Survival Rate
Thorax
Glycolates
Oxygen