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KMID : 0438520110180010111
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Journal of the Korean Society of Neonatology
2011 Volume.18 No. 1 p.111 ~ p.116
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The Impact of Delayed Interval Delivery on Neonatal Mortality and Morbidity
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Lee Eun-Hee
Sohn Jin-A
Lee Ju-Young
Choi Eun-Jin
Lee Jin-A
Choi Chang-Won
Kim Ee-Kyung
Kim Han-Suk
Jun Jong-Kwan
Kim Beyong-Il
Choi Jung-Hwan
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Abstract
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Purpose: To evaluate the impact of delayed interval delivery on neonatal outcomes.
Methods: This was a retrospective study of infants who were born at Seoul National University Hospital by delayed interval delivery from June 2005 to July 2010. Outcomes (neonatal mortality and morbidity) of later babies were compared to those of the first babies and the control group whose gestational ages and birth weights were similar to them.
Results: There were 4 twin and 5 triplet pregnancies. The first babies (group 1, n=9) were delivered at 22+6 to 27+5 weeks of gestational age, and the later babies (group 2, n=14) were born at 24+6 to 28+0 weeks. The mean interval between the first and later deliveries was 10 days, and there was no delay between the second and third deliveries in all triplet pregnancies. There were more small for gestational age (SGA) infants in group 1 than group 2 (66.7% and 21.4% respectively, P=0.03). Two of three babies who died in group 1 were born before 24 weeks of gestational age and expired within a week after birth. The mortality rate of group 2 (7.1%) was lower than group 1 (33.3%), but not significantly ( P=0.106). The control group matched to group 2 consisted of 28 infants. There were no significant differences in neonatal mortality and morbidity between the two groups.
Conclusion: Although there is a limitation to the number of infants in this study, it suggested that delayed delivery in a multiple pregnancy could decrease the incidence of SGA of the remaining fetuses and that prolonged gestation would not be harmful to those fetuses after birth.
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KEYWORD
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Delayed interval delivery, Multiple pregnancy, Newborn infant, Mortality, Morbidity
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