Correlates of diuretic renography in experimental hydronephrosis
We studied the correlations between diuretic renographs and kidney function in experimental hydronephrosis in rabbits. Features of furosemide-stimulated /sup 99m/Tc-diethylenetriamine-pentaacetic acid renographs were compared to the growth rate, thirst test and endogenous creatinine clearance rate in a chronic solitary-kidney animal model. Intravenous pyelograms, done four weeks after laparotomy, left nephrectomy, bladder resection and constriction of the right pyeloureteric junction, showed signs of obstruction in all the 12 animals of the experimental group. An absent tracer washout after intravenous furosemide, found in five animals, was associated with retarded growth, isosthenuria and an abnormal creatinine clearance. In all of the other seven animals, a distinct tracer washout after intravenous furosemide was accompanied with a normal growth rate and creatinine clearance. However, no one of these seven animals had a normal ability to retain water and concentrate urine in the thirst test. We conclude that, in this experimental model, a furosemide-induced tracer washout from the kidney pelvis cannot be taken as a proof of the absence of any upper urinary tract obstruction.
- Research Organization:
- Turku Univ. Central Hospital (Finland)
- OSTI ID:
- 6463638
- Journal Information:
- J. Urol.; (United States), Vol. 141:2
- Country of Publication:
- United States
- Language:
- English
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ISOMERIC NUCLEI
NEPHRECTOMY
ORGANOMETALLIC COMPOUNDS
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TECHNETIUM 99
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550601* - Medicine- Unsealed Radionuclides in Diagnostics