Article (Scientific journals)
Fetal renal artery flow and renal echogenicity in the chronically hypoxic state.
Suranyi, Andrea; Streitman, Karoly; Pal, Attila et al.
2000In Pediatric Nephrology, 14 (5), p. 393-399
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Keywords :
Fetus; Renal hyperechogenicity; Renal artery; Ultrasound; Vascular resistance
Abstract :
[en] 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 hyperechogenic 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.
Disciplines :
Reproductive medicine (gynecology, andrology, obstetrics)
Pediatrics
Author, co-author :
Suranyi, Andrea
Streitman, Karoly
Pal, Attila
Nyari, Tibor
Retz, Cristine
Foidart, Jean-Michel ;  Université de Liège - ULiège > Département des sciences cliniques > Gynécologie - Obstétrique - Labo de biologie des tumeurs et du développement
Schaaps, Jean-Pierre ;  Université de Liège - ULiège > Département des sciences biomédicales et précliniques > Embryologie
Kovacs, Lazlo
Language :
English
Title :
Fetal renal artery flow and renal echogenicity in the chronically hypoxic state.
Publication date :
2000
Journal title :
Pediatric Nephrology
ISSN :
0931-041X
eISSN :
1432-198X
Publisher :
Springer International, Berlin, Germany
Volume :
14
Issue :
5
Pages :
393-399
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 27 July 2009

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