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Oligohydramnios, small for gestational age and pregnancy outcomes: an analysis using precise measures
Everett F Magann1, David M Haas, James B Hill
1Department of Obstetrics and Gynecology, University of Arkansas for the Medical Sciences, Little Rock, Ark., USA. efmagann@uams.edu
Gynecologic and Obstetric Investigation
|November 2, 2011
Summary
Small-for-gestational-age (SGA) neonates combined with oligohydramnios significantly increase the risk of neonatal intensive care unit (NICU) admission. This combination did not predict other adverse pregnancy outcomes.
Area of Science:
- Perinatal medicine
- Neonatal outcomes
- Maternal-fetal medicine
Background:
- Decreased amniotic fluid volume and fetal growth restriction are linked to perinatal mortality.
- The specific association between fetal growth restriction and precisely measured amniotic fluid volume requires further investigation.
Purpose of the Study:
- To investigate if adverse pregnancy outcomes are more probable in pregnancies with small-for-gestational-age (SGA) neonates and dye-determined oligohydramnios.
Main Methods:
- Analyzed neonatal intensive care unit (NICU) admissions and other pregnancy outcomes in parturients with dye-determined amniotic fluid volume.
- Compared outcomes of pregnancies with oligohydramnios and SGA to those with only one condition or normal parameters.
Main Results:
- Oligohydramnios occurred in 26% of patients, SGA in 15%, and both in 5%.
- The combination of oligohydramnios and SGA strongly predicted NICU admission (OR 11.1; 95% CI 2.1-59.2), controlling for gestational age.
- This combination did not significantly predict other complications (OR 4.8; 95% CI 0.3-62.9).
Conclusions:
- The co-occurrence of SGA and oligohydramnios significantly elevates the likelihood of NICU admission.
- This combination does not appear to increase the risk of other morbidities.
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