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Korean Journal of Obstetrics & Gynecology 2000;43(5):863-870.
Published online January 1, 2001.
The Effect of Antenatal Corticosteroid on Perinatal Outcomes of Preterm Births.
In Sik Lee, Shin Myung Shin, Ji Ahn Kang, Hye Sung Won, Pyl Ryang Lee, Ahm Kim, Joo Hyun Nam
To determine the effectiveness and clinical utility of antenatal corticosteroids in the reduction of neonatal morbidity and mortality on preterm birth Material and method: Neonatal outcomes of 312 preterm babies were evaluated retrospectively. One hundred and two preterm babies(study group) were given dexamethasone more than 1 dose antenatally and 210 preterm babies(control group) were not given dexamethasone antenatally. Antenatal steroids were administered in the form of four 5mg intramuscular doses of dexamethasone 12 hours apart. Maternal and neonatal outcomes of study group were compared with those of control group. Student t- test, x2 test, Fisher's exact test, and logistic regression analysis were used where appropriate. p-value< 0.05 was considered significant. RESULTS: Antentenatal corticosteroid significantly decreased the incidence of RDS(OR:0.47, 95% CI:0.25-0.86), IVH/PVL(OR : 0.32, 95% CI : 0.12-0.86), necrotizing enterocolitis(OR : 0.49, 95% CI : 0.25-0.98), and neonatal death(OR: 0.30, 95% CI: 0.10 - 0.89) in preterm delivery. In the presence of PROM, antenatal corticosteoid seemed to have no protective effect on the neonatal complications such as RDS, IVH/PVL, NEC, PDA, and neonatal death. CONCLUSIONS: Antenatal administration of corticosteroids was effective to decrease the incidence of neonatal morbidity and neonatal mortality in the preterm neonates with no apparent maternal complications.
Key Words: Antenatal corticosteroid, Dexamethasone, Neonatal morbidity

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