Doppler evaluation of renal blood flow velocity as a predictive index of acute renal failure in perinatal asphyxia

1998 ◽  
Vol 157 (8) ◽  
pp. 656-660 ◽  
Author(s):  
R. Luciano ◽  
F. Gallini ◽  
C. Romagnoli ◽  
P. Papacci ◽  
G. Tortorolo
Keyword(s):  
Renal Failure ◽  
Blood Flow ◽  
Acute Renal Failure ◽  
Flow Velocity ◽  
Renal Blood Flow ◽  
Blood Flow Velocity ◽  
Perinatal Asphyxia ◽  
Predictive Index ◽  
Doppler Evaluation

scholarly journals Dissociation of glomerular filtration and renal blood flow in HgCl2-induced acute renal failure

1982 ◽  
Vol 22 (2) ◽  
pp. 162-170 ◽  
Author(s):  
Raymond C. Vanholder ◽  
Marleen M. Praet ◽  
Piet A. Pattyn ◽  
Isidoor R. Leusen ◽  
Norbert H. Lameire
Keyword(s):  
Renal Failure ◽  
Blood Flow ◽  
Acute Renal Failure ◽  
Glomerular Filtration ◽  
Renal Blood Flow

Effects of dopamine in the renal vascular bed of fetal, newborn, and adult sheep

1987 ◽  
Vol 252 (3) ◽  
pp. R490-R497 ◽  
Author(s):  
K. T. Nakamura ◽  
R. A. Felder ◽  
P. A. Jose ◽  
J. E. Robillard
Keyword(s):  
Blood Flow ◽  
Flow Velocity ◽  
Renal Blood Flow ◽  
Blood Flow Velocity ◽  
Experimental Models ◽  
Dose Ratio ◽  
Fetal Sheep ◽  
Adult Sheep ◽  
Beta Adrenoceptor ◽  
Arterial Blood

The renal hemodynamic response to renal arterial dopamine infusions was compared in unanesthetized fetal (129-137 days gestation, full term 145 days), newborn, and adult sheep. Mean arterial blood pressure and heart rate remained unchanged during intrarenal dopamine infusions. Dopamine produced dose-related decreases in mean renal blood flow velocity in all three groups. When compared with adult sheep fetal sheep were slightly more sensitive to the vasoconstrictive effects of dopamine ED50 (mean effective dose ratio: fetus/ED50 adult = 0.368 +/- 0.047, P less than 0.05). Increases in mean renal blood flow velocity were not seen at any dose given (1-16 micrograms/kg body wt in fetuses, 2-32 micrograms/kg body wt in newborns and adults) until dopamine was infused during alpha- and beta-adrenoceptor blockade. The largest mean increase in renal flow velocity was 13 +/- 3, 16 +/- 3, and 17 +/- 4% in fetal, newborn, and adult sheep, respectively. cis-Flupentixol inhibited the vasodilation. This study demonstrates the presence of renal vasodilation following renal arterial dopamine infusions in fetal, newborn, and adult sheep when renal alpha- and beta-adrenoceptors are blocked. Vasodilator responses are similar in all three groups, and increases in renal blood flow velocity are small compared with that of other experimental models.

Renal blood flow velocity in neonates with and without umbilical artery catheters

1994 ◽  
Vol 22 (9) ◽  
pp. 543-550 ◽  
Author(s):  
Julie S. Glickstein ◽  
Monika Rutkowski ◽  
Robert Schacht ◽  
Deborah Friedman
Keyword(s):  
Blood Flow ◽  
Flow Velocity ◽  
Renal Blood Flow ◽  
Blood Flow Velocity ◽  
Umbilical Artery

Reduced renal blood flow in early cisplatin-induced acute renal failure in the rat

1985 ◽  
Vol 249 (4) ◽  
pp. F490-F496 ◽  
Author(s):  
J. A. Winston ◽  
R. Safirstein
Keyword(s):  
Renal Failure ◽  
Blood Flow ◽  
Acute Renal Failure ◽  
Renal Blood Flow ◽  
Plasma Flow ◽  
Volume Expansion ◽  
Filtration Rate ◽  
Renal Plasma Flow ◽  
Single Nephron ◽  
Renal Vascular

Studies were designed to determine the cause of the reduced glomerular filtration rate (GFR) in early cisplatin-induced acute renal failure. Rats were studied 72 h following a single intraperitoneal injection of cisplatin (5 mg/kg) or vehicle (0.9% NaCl). Whole kidney GFR and blood flow were lower in cisplatin-treated animals than in controls (0.30 +/- 0.06 vs. 1.17 +/- 0.06 ml X min-1 X g kidney wt-1 and 5.30 +/- 0.62 vs. 8.25 +/- 0.43 ml X min-1 X g kidney wt-1, respectively; P less than 0.001), as were superficial nephron GFR and stop-flow pressure (20.2 +/- 2.1 vs. 34.5 +/- 2.0 nl X min-1 X g kidney wt-1 and 29.0 +/- 1.9 vs. 39.8 +/- 1.3 mmHg, respectively; P less than 0.001). After volume expansion, renal plasma flow increased in control rats, whereas whole kidney and single nephron GFR did not change. In experimental animals, whole kidney filtration rate rose to 0.58 +/- 0.07 ml X min-1 X g kidney wt-1, single nephron filtration rate increased to 29.9 +/- 3.5 nl X min-1 X g kidney wt-1 (P less than 0.005), and renal plasma flow increased to 5.62 +/- 0.60 ml X min-1 X g kidney wt-1 (P less than 0.05). Intratubular hydrostatic pressure was not different in the two groups before or after volume expansion. The results of these studies show that the reduced GFR in early cisplatin-induced renal failure is due, in part, to reversible changes in renal blood flow and renal vascular resistance.

Cardiac Output, Renal Blood Flow and Hepatic Blood Flow in Rats with Glycerol-Induced Acute Renal Failure

Nephron ◽  
1989 ◽  
Vol 53 (4) ◽  
pp. 353-357 ◽  
Author(s):  
T. Kishimoto ◽  
W. Sakamoto ◽  
T. Nakatani ◽  
T. Ito ◽  
K. Iwai ◽  
...  
Keyword(s):  
Renal Failure ◽  
Blood Flow ◽  
Acute Renal Failure ◽  
Cardiac Output ◽  
Renal Blood Flow ◽  
Hepatic Blood Flow
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