Fetal renal artery flow and renal echogenicity in the chronically hypoxic state

Andrea Surányi, Károly Streitman, Attila Pál, Tibor Nyári, Cristine Retz, Jean M. Foidart, Jean P. Schaaps, László Kovács

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

The object of this study was to investigate the fetal renal arterial blood flow in normal and hyperechogenic kidneys during the third trimester of gestation. The pregnancies screened were all chronically hypoxic. Depending on the etiology of the intrauterine chronic hypoxia, the cases were divided into two study groups. Group I comprised 120 pregnant women with pregnancy-associated hypertension and/or proteinuria. Group II consisted of 87 pregnancies with intrauterine growth retardation. Both study groups included pregnant women from the third trimester. Hyperechogenic renal medullae were detected in 15 out of 120 cases with pregnancy-associated hypertension and/or proteinuria, and in 22 fetuses of the 87 pregnancies involving intrauterine growth retardation. Fetal renal hyperechogenicity appears to be an indicator of fetal arterial circulatory depression, correlated with pathological changes in the resistance index for the fetal renal arteries. The fetal renal arterial blood flow resistance index was significantly lower in hyper echogenic cases. This may also be an in utero indication of subsequent intrauterine and neonatal complications, such as cesarean section because of fetal distress (43%), treatment in a neonatal intensive care unit (51%) or increased perinatal mortality (5.4%, as compared with 0.8-1.0% in the normal population). Detailed ultrasound and Doppler examinations of renal parenchyma and arteries appear to be useful methods in the prenatal diagnosis of reduced renal perfusion and of intrauterine hypoxia to detect possible pathological fetal conditions in utero.

Original languageEnglish
Pages (from-to)393-399
Number of pages7
JournalPediatric Nephrology
Volume14
Issue number5
Publication statusPublished - May 2000

Fingerprint

Renal Artery
Kidney
Pregnancy
Fetal Growth Retardation
Renal Circulation
Third Pregnancy Trimester
Proteinuria
Pregnant Women
Hypertension
Doppler Ultrasonography
Fetal Distress
Perinatal Mortality
Neonatal Intensive Care Units
Prenatal Diagnosis
Cesarean Section
Fetus
Perfusion
Population

Keywords

  • Fetus
  • Renal artery
  • Renal hyperechogenicity
  • Ultrasound
  • Vascular resistance

ASJC Scopus subject areas

  • Nephrology
  • Pediatrics, Perinatology, and Child Health

Cite this

Surányi, A., Streitman, K., Pál, A., Nyári, T., Retz, C., Foidart, J. M., ... Kovács, L. (2000). Fetal renal artery flow and renal echogenicity in the chronically hypoxic state. Pediatric Nephrology, 14(5), 393-399.

Fetal renal artery flow and renal echogenicity in the chronically hypoxic state. / Surányi, Andrea; Streitman, Károly; Pál, Attila; Nyári, Tibor; Retz, Cristine; Foidart, Jean M.; Schaaps, Jean P.; Kovács, László.

In: Pediatric Nephrology, Vol. 14, No. 5, 05.2000, p. 393-399.

Research output: Contribution to journalArticle

Surányi, A, Streitman, K, Pál, A, Nyári, T, Retz, C, Foidart, JM, Schaaps, JP & Kovács, L 2000, 'Fetal renal artery flow and renal echogenicity in the chronically hypoxic state', Pediatric Nephrology, vol. 14, no. 5, pp. 393-399.
Surányi A, Streitman K, Pál A, Nyári T, Retz C, Foidart JM et al. Fetal renal artery flow and renal echogenicity in the chronically hypoxic state. Pediatric Nephrology. 2000 May;14(5):393-399.
Surányi, Andrea ; Streitman, Károly ; Pál, Attila ; Nyári, Tibor ; Retz, Cristine ; Foidart, Jean M. ; Schaaps, Jean P. ; Kovács, László. / Fetal renal artery flow and renal echogenicity in the chronically hypoxic state. In: Pediatric Nephrology. 2000 ; Vol. 14, No. 5. pp. 393-399.
@article{0e0ec2f85f0c4f36ac91b8f6ba234c9b,
title = "Fetal renal artery flow and renal echogenicity in the chronically hypoxic state",
abstract = "The object of this study was to investigate the fetal renal arterial blood flow in normal and hyperechogenic kidneys during the third trimester of gestation. The pregnancies screened were all chronically hypoxic. Depending on the etiology of the intrauterine chronic hypoxia, the cases were divided into two study groups. Group I comprised 120 pregnant women with pregnancy-associated hypertension and/or proteinuria. Group II consisted of 87 pregnancies with intrauterine growth retardation. Both study groups included pregnant women from the third trimester. Hyperechogenic renal medullae were detected in 15 out of 120 cases with pregnancy-associated hypertension and/or proteinuria, and in 22 fetuses of the 87 pregnancies involving intrauterine growth retardation. Fetal renal hyperechogenicity appears to be an indicator of fetal arterial circulatory depression, correlated with pathological changes in the resistance index for the fetal renal arteries. The fetal renal arterial blood flow resistance index was significantly lower in hyper echogenic cases. This may also be an in utero indication of subsequent intrauterine and neonatal complications, such as cesarean section because of fetal distress (43{\%}), treatment in a neonatal intensive care unit (51{\%}) or increased perinatal mortality (5.4{\%}, as compared with 0.8-1.0{\%} in the normal population). Detailed ultrasound and Doppler examinations of renal parenchyma and arteries appear to be useful methods in the prenatal diagnosis of reduced renal perfusion and of intrauterine hypoxia to detect possible pathological fetal conditions in utero.",
keywords = "Fetus, Renal artery, Renal hyperechogenicity, Ultrasound, Vascular resistance",
author = "Andrea Sur{\'a}nyi and K{\'a}roly Streitman and Attila P{\'a}l and Tibor Ny{\'a}ri and Cristine Retz and Foidart, {Jean M.} and Schaaps, {Jean P.} and L{\'a}szl{\'o} Kov{\'a}cs",
year = "2000",
month = "5",
language = "English",
volume = "14",
pages = "393--399",
journal = "Pediatric Nephrology",
issn = "0931-041X",
publisher = "Springer Verlag",
number = "5",

}

TY - JOUR

T1 - Fetal renal artery flow and renal echogenicity in the chronically hypoxic state

AU - Surányi, Andrea

AU - Streitman, Károly

AU - Pál, Attila

AU - Nyári, Tibor

AU - Retz, Cristine

AU - Foidart, Jean M.

AU - Schaaps, Jean P.

AU - Kovács, László

PY - 2000/5

Y1 - 2000/5

N2 - The object of this study was to investigate the fetal renal arterial blood flow in normal and hyperechogenic kidneys during the third trimester of gestation. The pregnancies screened were all chronically hypoxic. Depending on the etiology of the intrauterine chronic hypoxia, the cases were divided into two study groups. Group I comprised 120 pregnant women with pregnancy-associated hypertension and/or proteinuria. Group II consisted of 87 pregnancies with intrauterine growth retardation. Both study groups included pregnant women from the third trimester. Hyperechogenic renal medullae were detected in 15 out of 120 cases with pregnancy-associated hypertension and/or proteinuria, and in 22 fetuses of the 87 pregnancies involving intrauterine growth retardation. Fetal renal hyperechogenicity appears to be an indicator of fetal arterial circulatory depression, correlated with pathological changes in the resistance index for the fetal renal arteries. The fetal renal arterial blood flow resistance index was significantly lower in hyper echogenic cases. This may also be an in utero indication of subsequent intrauterine and neonatal complications, such as cesarean section because of fetal distress (43%), treatment in a neonatal intensive care unit (51%) or increased perinatal mortality (5.4%, as compared with 0.8-1.0% in the normal population). Detailed ultrasound and Doppler examinations of renal parenchyma and arteries appear to be useful methods in the prenatal diagnosis of reduced renal perfusion and of intrauterine hypoxia to detect possible pathological fetal conditions in utero.

AB - The object of this study was to investigate the fetal renal arterial blood flow in normal and hyperechogenic kidneys during the third trimester of gestation. The pregnancies screened were all chronically hypoxic. Depending on the etiology of the intrauterine chronic hypoxia, the cases were divided into two study groups. Group I comprised 120 pregnant women with pregnancy-associated hypertension and/or proteinuria. Group II consisted of 87 pregnancies with intrauterine growth retardation. Both study groups included pregnant women from the third trimester. Hyperechogenic renal medullae were detected in 15 out of 120 cases with pregnancy-associated hypertension and/or proteinuria, and in 22 fetuses of the 87 pregnancies involving intrauterine growth retardation. Fetal renal hyperechogenicity appears to be an indicator of fetal arterial circulatory depression, correlated with pathological changes in the resistance index for the fetal renal arteries. The fetal renal arterial blood flow resistance index was significantly lower in hyper echogenic cases. This may also be an in utero indication of subsequent intrauterine and neonatal complications, such as cesarean section because of fetal distress (43%), treatment in a neonatal intensive care unit (51%) or increased perinatal mortality (5.4%, as compared with 0.8-1.0% in the normal population). Detailed ultrasound and Doppler examinations of renal parenchyma and arteries appear to be useful methods in the prenatal diagnosis of reduced renal perfusion and of intrauterine hypoxia to detect possible pathological fetal conditions in utero.

KW - Fetus

KW - Renal artery

KW - Renal hyperechogenicity

KW - Ultrasound

KW - Vascular resistance

UR - http://www.scopus.com/inward/record.url?scp=0342265119&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0342265119&partnerID=8YFLogxK

M3 - Article

C2 - 10805467

AN - SCOPUS:0342265119

VL - 14

SP - 393

EP - 399

JO - Pediatric Nephrology

JF - Pediatric Nephrology

SN - 0931-041X

IS - 5

ER -