Intrarenal reflux
نویسنده
چکیده
A 5-year-old girl was admitted with fever and diurnal enuresis. In her medical history, she had numerous recurrent urinary tract infections; however, she was not evaluated with radiological methods. Urinalysis revealed pyuria and the urine culture grew >100 000 Escherichia coli. Urinary ultrasonography showed that the left kidney was smaller than the right kidney, with a longitudinal kidney diameter 60 mm and 75 mm, respectively. DMSA renal scintigraphy also revealed contraction of the whole left kidney, while the right kidney was normal. There was reduced function on the left kidney, contributing to total renal function of only 17%. Voiding cystourethrogram performed 4 weeks after infection revealed left grade 4 vesicoureteral reflux with intrarenal reflux (IRR) and right grade 3 vesicoureteral reflux without IRR (Figure 1).
منابع مشابه
Intrarenal reflux and the scarred kidney.
Rolleston, G. L., Maling, T. M. J., and Hodson, C. J. (1974). Archives of Disease in Childhood, 49, 531. Intrarenal reflux and the scarred kidney. The incidence and significance of intrarenal reflux (pyelotubular backflow) occurring during micturating cystourethrography has been studied in 386 examinations on patients with vesicoureteric reflux. This phenomenon has not been observed in patients...
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We compared newly developed radionuclide cystography with conventional contrast voiding cystography (VCG) with regard to their diagnostic usefulness of intrarenal reflux (IRR) in children. Based on the imaging findings, we assessed the role of IRR in the pathogenesis of reflux nephropathy (RN). Among the ureters which revealed IRR diagnosed by radionuclide cystography, 38.9% (7 out of 18 ureter...
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BACKGROUND The BK virus typically colonizes the lower urinary tract and is the causative agent in BK virus nephropathy (BKVN), which can progress to allograft dysfunction and graft loss. Urinary reflux in kidney allografts is induced by vesicoureteral reflux or disturbances in intrarenal reflux (IRR), believed to be associated with BKVN. This study was designed to elucidate the relationship bet...
متن کاملThe Clinical Significance of Intrarenal Reflux in Voiding Cystourethrography (VCUG)
PURPOSE Intrarenal reflux (IRR) occurs in 3-10% of cases of total reflux and can lead to renal injury, which may eventually result in renal scarring. In this study, we evaluated the clinical importance of IRR detected by voiding cystourethrography and evaluated the relationship between IRR and renal scarring. MATERIALS AND METHODS From January 2002 to May 2008, 50 patients who were diagnosed ...
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