Role of Antenatal Dexamethasone Administration on Fetal Doppler Velocimetry

Aim: The aim of this study was assess the change in fetal and uteroplacental circulation followingantenatal dexamethasone administration to high-risk of preterm labor pregnant women.Patients and Methods: Prospective study was conducted between January and May 2021 in Tikrit cityat Salahadeen General Hospital /genecology and obstetrics department The study included 30 pregnantwomen with high risk of preterm labor with gestational age from 24 to 34 weeks. Doppler Study wereperformed just before dexamethasone administration and will be repeated 24 h after completion of thedexamethasone course.Results: The study showed the highest means of Fetal MCA pulsitility index. levels were recordedin women who at risk of preterm uterine contractions, placenta previa and pre-eclampsia respectivelybefore dexamethasone administration as compared with the same groups at 24 hour after dexamethasoneadministration (P<0.05). The study showed the highest means of Fetal MCA resistive index levels wererecorded in women with preterm uterine contractions, placenta previa and pre-eclampsia respectivelybefore dexamethasone administration as compared with the same groups 24 hour after dexamethasoneadministration (P<0.05). The study showed the highest means of Uterine artery pulsitility index.levels were observed in women with preterm uterine contractions, placenta previa and pre-eclampsiarespectively before dexamethasone administration as compared with the same groups 24 hour afterdexamethasone administration.