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Clinical and Experimental Obstetrics & Gynecology (CEOG) is published by IMR Press from Volume 47 Issue 1 (2020). Previous articles were published by another publisher on a subscription basis, and they are hosted by IMR Press on imrpress.com as a courtesy and upon agreement with S.O.G.
Original Research
Doppler parameters of maternal renal blood flow in normal pregnancy
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1
University of Belgrade, Medical School, University Clinic for Gynecology and Obstetrics “Narodni front”
2
University of Belgrade, Medical School, Clinic of Nephrology, Clinical Center, Belgrade (Serbia)
Clin. Exp. Obstet. Gynecol. 2013, 40(1), 70–73;
Published: 10 March 2013
Abstract
The purpose of this investigation was to evaluate changes in maternal renal arterial blood flow during pregnancy. Materials and Methods: The study included 40 non-pregnant, 200 pregnant, and 30 women after delivery. The authors measured pulsatility index (Pi) and resistance index (Ri) in the right and left renal arteries in the hilus. The authors compared the values between non-pregnant and women during first, second, and third trimester and post-partum period and tested correlation with gestational age. Results: The authors did not find a statistical difference in Pi and Ri between the right and left kidneys. There was no difference in Pi and Ri in pregnancy trimester compared to the non-pregnant state. There was no correlation between the values of Pi and Ri and gestational weeks. Conclusion: During pregnancy there are no changes in the values of maternal renal Pi and renal Ri. Unchanged total vascular resistance may result from physiological changes of the glomerular filtration rate.
Keywords
Kidney
Maternal
Renal artery
Doppler
Pregnancy