The impact of umbilical and uterine artery Doppler indices on antenatal course, labor and delivery in a low-risk primigravid population
-
Sharon M. Cooley
, Jennifer C. Donnelly
, Thomas Walsh , Corrina MacMahon , John Gillan and Michael P. Geary
Abstract
Aims: To evaluate the impact of umbilical and uterine artery Doppler in the second and third trimester on antenatal course, labor and delivery in a low-risk primigravid population.
Methods: Prospective recruitment of 1011 low-risk primigravidas with uterine and umbilical artery Doppler assessment at 22–24 weeks and 36 weeks. All mothers and infants were reviewed postnatally with a retrospective analysis of ultrasound and clinical outcome data.
Results: Elevated uterine artery indices were associated with increased rates of threatened miscarriage, higher rates of pre-eclampsia (PET) and a higher incidence of fetal birth weight <2nd and 9th centile for gestation. Uterine artery pulsatility index (PI) >95th centile for gestation was associated with statistically higher rates of small-for-gestational age (SGA) infants. Elevated umbilical artery indices were associated with higher rates of induction of labor and a higher incidence of fetal birth weight infants <2nd and 9th centile for gestation. Umbilical artery PI >95th centile for gestation was associated with statistically higher rates of SGA infants.
Conclusion: Elevated uterine and umbilical artery indices are associated with higher rates of maternal and fetal disease.
©2011 by Walter de Gruyter Berlin New York
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- Recommendations and guidelines for perinatal practice
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