The purpose of this study is to evaluate the effect of antenatal corticosteroid administration on umbilical artery Doppler velocimetry measurements in pregnancies complicated by IUGR.
This study was conducted with pregnant women who were likely to have preterm birth and were treated with antenatal corticosteroids. Betamethasone was used as an antenatal corticosteroid. UA Doppler measurements (PI, S/D ratio, RI) before antenatal corticosteroid administration and 24 and 48 hours after the last dose of corticosteroid administration were evaluated in pregnant groups complicated with IUGR and uncomplicated with IUGR and compared with each other.
Study Type
OBSERVATIONAL
Enrollment
149
Umbilical artery Doppler evaluation by ultrasonography just before the first dose of antenatal corticosteroid, 24 hours and 48 hours after the last dose.
Merve Demir
Kocaeli, Turkey (Türkiye)
systolic:diastolic ratio (S/D ratio)
Peak systolic velocity/end diastolic velocity
Time frame: 2018-2019
pulsatility index (PI)
Pulsatility Index (PI) = (Peak systolic velocity - end diastolic velocity)/(time averaged maximum velocity)
Time frame: 2018-2019
Resistive Index (RI)
Resistive Index (RI) = (Peak systolic velocity - end diastolic velocity)/(peak systolic velocity)
Time frame: 2018-2019
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