Predictive Value of^99m Tc‐DTPA Renography Studies under Conditions of Maximal Diuresis for the Functional Outcome of Reconstructive Surgery in Children with Obstructive Uropathy

Abstract

Renographic studies under standardised conditions of maximal diuresis provoked by infusion of hypotonic saline and frusemide were made on 51 patients with 54 dilated upper urinary tract systems in order to distinguish obstructed from non-obstructed systems. Of the 23 systems judged on clinical and radiological grounds to be obstructed only 12 were in fact obstructed following infusion of hypotonic saline and frusemide. In 10 of these systems (10 patients) an Anderson-Hynes pyeloplasty was carried out. All systems showed improved renal function after operation and the renographic pattern became non-obstructed.

Diuretic‐induced Urinary Flow Rates at Varying Clearances and their Relevance to the Performance and Interpretation of Diuresis Renography

“…In four of the 14 patients referred to above, sub-optimal washout was converted to normal by this modification. Similar conversion of equivocal to normal curves was reported by Sukhai et al (1986) using an intravenous infusion to achieve maximal diuresis. Conversion of curves in the opposite direction, from equivocal to obstructed, has been reported by English et al (1987).…”

Neubewertung der Diureseradionuklidnephrographie bei Ureterabgangsstenosen

“…Erst damit können die Nieren auf die nachfolgende Furosemidgabe auch mit einer adäquaten Harnflußerhöhung reagieren [21,22]. Hydratisierung zu erreichen ist.…”

Treatment of the Primary Functional Obstructive Megaureter in Childhood

“…Sometimes the diagnosis was suspected by ultrasound examination and confirmed with intravenous urography. In all patients a renal scan was performed, mostly under conditions of maximal diuresis (8). Pressure-flow studies were not performed.…”