Fetal Renal Volume and Fetal Doppler in Normal and Growth Restricted Fetuses: Is there a Correlation?

Behery, Manal M. El; Ibrahiem, Moustafa A.

doi:10.4172/2161-0932.1000118

Cited by 8 publications

(20 citation statements)

References 22 publications

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“…The renal artery PI was 0.79 and 1.75, respectively, in normally growing foetuses and growth restricted foetuses; and there was a statically significant correlation between these two groups [13]. They also detected a negative correlation between the foetal arterial pO2 and AFI.…”

Section: Discussionmentioning

confidence: 90%

“…One-hundred foetuses were evaluated by Behery and colleagues [13] with colour Doppler US between the gestational weeks 26-34, and forty-three of them had growth retardation. Renal artery PIs were detected at 0.79 and 1.75, respectively, in normally growing foetuses and growth restricted foetuses, and there were statically significant correlations between these two groups [13].…”

Section: Discussionmentioning

confidence: 99%

“…Behery et al [13] evaluated 110 patients with colour Doppler US, and 43 of them had IUGRs between gestational weeks 26-34. The renal artery PI was 0.79 and 1.75, respectively, in normally growing foetuses and growth restricted foetuses; and there was a statically significant correlation between these two groups [13].…”

Section: Discussionmentioning

confidence: 99%

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Renal Artery Doppler Findings in the Patients with Polyhydramnios before and after the Conservative Treatment

Akdogan

İpek²,

Kurt

et al. 2015

Eurasian J Med

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Objective: The aim of this study was to evaluate the foetal renal blood flow with colour Doppler ultrasonography. Patients with polyhydramnios were investigated for the foetal renal artery pulsatility index (PI) at the beginning of the treatment, and after the conservative treatment in those who reached the normal amniotic fluid index. Materials and Methods:In this prospective study, 39 foetuses with polyhydramnios were evaluated at gestational weeks 26 to 36. The foetal development parameters, right and left foetal renal artery PIs, and amniotic fluid index were measured at the beginning of the treatment in all of these patients. Of these patients, 19 who responded to the conservative treatment were also revaluated when their amniotic fluid index reached normal levels, and statistical analyses were performed for the renal artery PIs before and after the treatment.Results: In this study, 19 patients fulfilled the inclusion criteria as patients with polyhydramnios who responded to conservative treatment. For these patients, the mean foetal renal artery PI was 2.08 (range 1.5-3.0) at the first sonographic examination, and the mean foetal renal artery PI was 1.94 (range 1.53-2.69) after the conservative treatment. However, there was no statistically significant difference between these two groups (p=0.117). Conclusion:In this study, no statistically significant difference was found in the foetal renal artery PIs of the patients with polyhydramnios before and after the conservative treatment. These results suggest that the renal artery blood flow may not have any effect on the renal artery PI; therefore, these findings indicate that the renal artery PI cannot be used as a marker in the evaluation of polyhydramnios.Keywords: Doppler ultrasonography, foetal renal artery, polyhydramnios, pulsatility index Özet Amaç: Bu çalışmanın amacı fetal renal arter kan akımını renkli Doppler ultrasonografi ile değerlendirmek olup polihidramniyos saptanan tüm fetuslarda konservatif tedavi öncesinde ve sonrasında fetal renal arter pulsatilite indeksleri ölçüldü. Konservatif tedavi sonrası amniyotik sıvı indeksi normale dönen fetuslarda renal arter pulsatilite indeksi yeniden ölçüldü. Gereç ve Yöntem:Bu prospektif çalışmaya 26-36. gestasyonel haftalar arasında polihidramniyosu olan 39 fetus dahil edildi. Tüm fetusların tedavi öncesinde fetal gelişim parametreleri, sağ ve sol renal arter pulsatilite indeksleri ve amniyotik sıvı indeksi ölçüldü. Bu hastaların 19'u konservatif tedaviye yanıt vermiş olup tedavi sonrası amniyotik sıvı indeksi normale döndü. Bu 19 fetusun renal arter pulsatilite indeksi tedavi öncesi ve sonrasında istatistiksel olarak değerlendiril-miştir.Bulgular: Çalışmaya polihidramniyosu olup konservatif tedavi sonrası tedaviye yanıt veren 19 hasta ile devam edildi. Bu fetuslarda mean fetal renal arter pulsatilite indeksi ilk sonografik incelemede 2,08 (range 1,5-3,0) ölçülmüş olup tedavi sonrasında 1,94 (range 1,53-2,69) olarak saptandı. Ancak bu iki grup arasında istatistiksel olarak anlamlı fark saptanmadı (...

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Section: Discussionmentioning

confidence: 90%

Section: Discussionmentioning

confidence: 99%

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Renal Artery Doppler Findings in the Patients with Polyhydramnios before and after the Conservative Treatment

Akdogan

İpek²,

Kurt

et al. 2015

Eurasian J Med

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“…In our research, there was no statistically significant difference between the two groups with regard to the length of the right and left kidneys, however a significant difference in width, which was the same findings as previously reported, is also in line with previous study, which showed that in small-for-gestational age fetuses the length of the kidney remained largely unchanged. In addition, renal duration is a weak measure of the amount of renal parenchyma relative to the volume of the renal parenchyma [13].…”

Section: Discussionmentioning

confidence: 99%

Correlation between Fetal Renal Blood Flow and Fetal Kidney Volume in Normal and Growth Restricted Fetuses

Sonkor

Aglan

Tawfek

et al. 2021

JAMMR

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Background: Some trials have shown decreased weight of fetal kidney in cases of reduced neonatal weight and infants with growth-restriction at birth. In infants with growth-restriction due to poor nutrition, most of the fetal blood supply is directed to vital organs such as fetal heart and brain that leads to deprivation of remaining organs from its nutrients, such as kidney. This work aimed to assess whether the size of fetal kidney in cases of normal and restricted fetal growth patterns after 28 weeks could be affected by reduced fetal renal blood supply or not. Methods: This case-control trial included 60 patients who were divided into two groups: Each group composed of 30 patients; Study group: fetuses with IUGR and control group: fetuses with normal growth pattern. Results: There was no significance between both study groups as regard to age, weight, BMI, and gravidity. No significance between the studied groups regarding the clinical findings, gestational age, diabetes, HTN, congenital fetal anomalies, and previous C.S. A high significance was present among both groups as regard to measurements of renal artery Doppler. A correlation of statistical significance was noted as regard Doppler indices and kidney volume in the study group. Conclusions: The elevated pulsatility index of the renal artery of fetus in fetuses with IUGR showed -ve correlation with the volume of the fetal kidney, resulting in reduced nephron-genesis and perfusion. Restrictions in intrauterine growth are believed to be associated with a significant reduction in renal volume compared to the normal growth of fetuses. The Doppler of renal artery also reveals significant differences among study groups.

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“…6 Many authors, in their study did not find significant difference in kidney length between normal and growth restricted fetuses, but they observed decreased kidney volume (29% less) in foetuses with intrauterine growth restriction than that of normally grown foetuses, which may be due to impaired nephrogenesis as a result of decreased renal perfusion. 3,14,15 But Indu Kaul et al (2012). 16 found in their study the mean Left fetal kidney length was slightly but significantly longer than the mean Right at each gestational period, which was also observed by Fitzsimons RB et al, 17 Duval JM et al 18 and Sampaio FJ et al, 19 as mentioned by Indu Kaul et al…”

Section: Discussionmentioning

confidence: 99%

Study of fetal kidney size by ultrasonography at different gestational age

2020

IJCAP

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Normal fetal kidney dimensions are necessary to diagnose fetal kidney abnormalities. The maximum fetal renal growth occurs during 26-34 weeks gestation. Fetal kidney length correlates well with gestational age. Aim of the present study is to measure fetal kidney size at 30 and 38 weeks of gestation in singleton pregnancy. No statistically significant difference was found in the mean parameters of right and left kidney at a particular gestational age (p≥0.05) in this study. The mean length in mm of fetal kidneys was slightly longer than the approximate gestational age in weeks.

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Fetal Renal Volume and Fetal Doppler in Normal and Growth Restricted Fetuses: Is there a Correlation?

Abstract: Objective: To evaluate if umbilical, middle cerebral and fetal renal artery Doppler could affect fetal kidney volume in healthy and growth restricted fetuses after 26 weeks of gestation. Design: A prospective cross sectional study.

Cited by 8 publications

References 22 publications

Renal Artery Doppler Findings in the Patients with Polyhydramnios before and after the Conservative Treatment

Renal Artery Doppler Findings in the Patients with Polyhydramnios before and after the Conservative Treatment

Correlation between Fetal Renal Blood Flow and Fetal Kidney Volume in Normal and Growth Restricted Fetuses

Study of fetal kidney size by ultrasonography at different gestational age

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