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Type: Journal article
Title: Optimal Timing of Delivery in Small for Gestational Age Fetuses Near Term: A National Cohort Study
Author: Kazemier, B.
Voskamp, B.
Ravelli, A.
Pajkrt, E.
Groot, C.
Mol, B.
Citation: American Journal of Perinatology, 2015; 30(2):177-186
Publisher: Thieme Medical Publishers
Issue Date: 2015
ISSN: 0735-1631
Statement of
B. M. Kazemier, B. J. Voskamp, A. C. J. Ravelli, E. Pajkrt, C. J. M. de Groot, B. W. J. Mol
Abstract: OBJECTIVE: Our aim was to study the competing risks of antepartum versus intrapartum/neonatal death in small for gestational age (SGA) and non-SGA fetuses. STUDY DESIGN: We performed a national cohort study using all singletons delivered between 36 and 42(6/7) weeks without hypertension, preeclampsia, diabetes, congenital anomalies, or noncephalic presentation from the Netherlands Perinatal Registry (1999-2007). The resultant cohort was divided in three groups based on birth weight by gestational age (SGA < P5 group, 61,021 deliveries; SGA P5-10 group, 58,902 deliveries; non-SGA group 1,168,523 deliveries). We compared the mortality risk of delivery with expectant management. RESULTS: Delivery was associated with more mortality than expectant management for 1 week from 39 weeks onward in the non-SGA group (relative risk [RR], 1.26; 95% confidence interval [CI], 1.05-1.50). For the SGA < P5, expectant management for 1 more week was associated with more mortality from 38 weeks onward although this only reached statistical significance from 40 weeks onward (RR, 2.46; 95% CI, 1.80-3.36). CONCLUSION: At 36 and 37 weeks, delivery is associated with a higher risk of mortality in SGA < P5 fetuses than expectant management. Delivery of SGA < P5 fetuses at 38 and 39 weeks is associated with the best perinatal outcome whereas for non-SGA fetuses this is at 39 to 40 weeks.
Keywords: Small for gestational age; optimal timing delivery; antepartum death; neonatal death
Rights: Copyright © 2015 by Thieme Medical Publishers
RMID: 0030017782
DOI: 10.1055/s-0034-1381724
Appears in Collections:Obstetrics and Gynaecology publications

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