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International Journal of Reproductive BioMedicine
Research and Clinical Center for Infertility, Shahid Sadoughi University of Medical Sciences of Yazd
ISSN: 1680-6433 EISSN: 1680-6433
Vol. 19, No. 9, 2021, pp. 821-826
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Bioline Code: rm21085
Full paper language: English
Document type: Research Article
Document available free of charge
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International Journal of Reproductive BioMedicine, Vol. 19, No. 9, 2021, pp. 821-826
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The correlation between the cerebroplacental ratio and fetal arterial blood gas in appropriate-for-gestational-age fetuses: A cross-sectional study
Jamal, Ashraf; Marsoosi, Vajiheh; Sarvestani, Fatemeh & Hashemi, Neda
Abstract
Background: The cerebroplacental ratio (CPR) is an important index for predicting
adverse pregnancy outcomes in small-for-gestational-age and appropriate-forgestational-age fetuses.
Objective: To find out whether there is an association between the CPR level and the
blood cord gases analysis in appropriate for gestational age fetuses.
Materials and Methods: This cross-sectional study included 347 pregnant women at
the gestational age of 37-40 wk. Patients had an appropriate-for-gestational-age fetus
confirmed from their first ultrasonography results. Participants were divided into two
groups based on their CPR, measured before delivery. Finally, after delivery, arterial
blood gas level and the incidence of emergency cesarean section, intrapartum fetal
distress and neonatal intensive care unit admissions were compared between the two
groups.
Results: Fifty-four (15.6%) cases had a CPR below the detection limit of the assay. The
incidence of fetal distress, emergency cesarean section, neonatal hospitalization in
the neonatal intensive care unit, and pH < 7.2 were significantly lower in women with
CPR ≥ 0.67 multiples than in women with a CPR < 0.67 multiples of the median.
Conclusion: The third-trimester CPR is an independent predictor of stillbirth and
perinatal mortality and morbidity. The role of UA/MCA Doppler and the CPR in
assessing the risk of adverse pregnancy outcomes should be evaluated prospectively.
Keywords
Umbilical cord blood; Color Doppler ultrasonography; Gestational age.
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