Observations on tonus increase in the upper urinary tract on intravenous urography.
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A new antiseptic contrast material, composed of sodium diatrizoate-meglumine diatrizoate and PVP-iodine solution, was prepared and tested for retrograde cystography. It was tested in vitro and in dogs, showed satisfactory radiological features and rapid wide bactericidal action without detectable side effects. Septic complications following radiological demonstration of the urinary tract may be reduced.
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One hundred and ninety-one children with a first episode of urinary tract infection (UTI) underwent intravenous pyelography (IVP) and voiding cystourethrography (VCU). Only three children (1.5%) had positive findings in the IVP that were of prognostic significance and were confined to that particular investigation alone. In contrast, 97 (50.7%) of the VCUs showed anatomical abnormalities. Vesico-ureteral reflux (VUR) of varying grades was diagnosed in 77 children (40.3%). These findings stress the importance of radiological investigation of the urinary tract after the first incidence of UTI, but suggest that IVP will give information of therapeutic and/or prognostic value in a small number of cases.
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