Volume 19, Issue 9 (September 2021)                   IJRM 2021, 19(9): 821-826 | Back to browse issues page

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Jamal A, Marsoosi V, Sarvestani F, Hashemi N. The correlation between the cerebroplacental ratio and fetal arterial blood gas in appropriate-for-gestational-age fetuses: A cross-sectional study. IJRM 2021; 19 (9) :821-826
URL: http://ijrm.ir/article-1-1306-en.html
The correlation between the cerebroplacental ratio and fetal arterial blood gas in appropriate-for-gestational-age fetuses: A cross-sectional study
Ashraf Jamal1 , Vajiheh Marsoosi1 , Fatemeh Sarvestani1 , Neda Hashemi * 2
1- Department of Perinatology, Tehran University of Medical Sciences, Tehran, Iran.
2- Department of Perinatology, Endometriosis Research Center, Rasoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran. , hashemi.n@iums.ac.ir
Abstract:   (2300 Views)

Background: The cerebroplacental ratio (CPR) is an important index for predicting adverse pregnancy outcomes in small-for-gestational-age and appropriate-for-gestational-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.
Material and Method: This cross- sectional study included 347 pregnant women at the gestational age of 37-40 week. 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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Type of Study: Original Article | Subject: Perinatology
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