scholarly journals Comparison of amniotic fluid volumetry between fetal sonography and MRI - Correlation to MR diffusion parameters of the fetal kidney

Birth Defects ◽  
2017 ◽  
Vol 1 (1) ◽  
Author(s):  
Elena Moschos ◽  
Daniel Güllmar ◽  
Anja Fiedler ◽  
Ulrike John ◽  
Diane M. Renz ◽  
...  
Keyword(s):  
Amniotic Fluid ◽  
Fetal Kidney ◽  
Diffusion Parameters ◽  
Mr Diffusion

Renal function in the chronically cannulated fetal llama: comparison with studies in the ovine fetus

1995 ◽  
Vol 7 (5) ◽  
pp. 1311 ◽  
Author(s):  
EM Wintour ◽  
R Riquelme ◽  
C Gaete ◽  
C Rabasa ◽  
E Sanhueza ◽  
...  
Keyword(s):  
Amniotic Fluid ◽  
Flow Rate ◽  
Urine Flow ◽  
Urine Flow Rate ◽  
Fetal Kidney ◽  
Fetal Plasma ◽  
Post Surgery ◽  
Fetal Urine ◽  
Ovine Fetus ◽  
Ovine Fetal

Samples of maternal and fetal plasma, fetal urine, and amniotic fluid were collected from 8 chronically cannulated pregnant llamas, in the last third of gestation. The samples were obtained for up to 18 days post-surgery. Osmolality, sodium (Na), potassium (K), chloride (Cl), and urea were measured on 40 samples collected on days 1, 2, 3, 4-5, 6-7, 8-9, and 10-19. The osmolalities of maternal and fetal plasma, fetal urine and amniotic fluid, averaged over these 7 time periods, were, respectively, 312 +/- 2, 311 +/- 1, 484 +/- 14, and 317 +/- 1 mosmol kg-1. Values are given as mean +/- s.e. The major differences from fetal fluid values in the ovine fetus (from previously published values) were the higher osmolality and urea concentration of llama fetal urine. Urine flow rate measured in 6 fetuses, 4.5-6.5 kg body weight, was 5.8 +/- 0.4 mliter h-1; urea clearance rate was 55.5 +/- 11.8 mliter h-1. Glomerular filtration rate (GFR), measured with 51Cr-EDTA in 5 fetuses on 1-4 occasions, was 111.4 +/- 23.3 mliter h-1. Fractional reabsorptions (FR) of Na, K and Cl were 97.9 +/- 1, 75.9 +/- 13.5 and 97.7 +/- 0.4% respectively. The GFR (25 mliter kg-1 h-1) and urine flow rate (1 mL kg-1 h-1) were less than half and about one-tenth the respective values in ovine fetuses. As Na reabsorption is the major oxygen-consuming activity of the kidney, the llama fetal kidney requires only half the oxygen needed by the ovine fetal kidney to reabsorb the filtered sodium load. The reason for the formation of hypertonic, rather than hypotonic, urine in the fetal llama may be due to both greater morphological maturity of the kidney and the excretion of as yet unidentified osmotically active organic substances.

Evaluation of the fetal kidney maturation by assessment of amniotic fluid alpha-1 microglobulin levels

2000 ◽  
Vol 90 (1) ◽  
pp. 55-61 ◽  
Author(s):  
Arzu Çaǧdaş ◽  
Kiliç Aydinli ◽  
Tülay Irez ◽  
Kamil Temizyürek ◽  
Memnune Y. Apak
Keyword(s):  
Amniotic Fluid ◽  
Fetal Kidney ◽  
Kidney Maturation

The contribution of the fetal kidney to the amniotic fluid lung profile

1983 ◽  
Vol 146 (6) ◽  
pp. 709-710 ◽  
Author(s):  
Lyndon M. Hill ◽  
Robert Breckle ◽  
Ralph D. Ellefson
Keyword(s):  
Amniotic Fluid ◽  
Fetal Kidney

The relationship between Aquaporin-2 protein levels in amniotic fluid and the fetal kidney in humans

2018 ◽  
Vol 506 (3) ◽  
pp. 585-589 ◽  
Author(s):  
Jinjin Feng ◽  
Yan Chen ◽  
Shaohua Yan ◽  
Lu Wen ◽  
Xi Guo ◽  
...  
Keyword(s):  
Amniotic Fluid ◽  
Fetal Kidney ◽  
Protein Levels ◽  
Aquaporin 2 ◽  
The Relationship
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