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  • Title: "Stasis"--a test for vesico-ureteric orifice competence in children with reflux.
    Author: Pollet JE, Sharp PF, Smith FW.
    Journal: Pediatr Radiol; 1980 Jul; 9(4):213-5. PubMed ID: 7402745.
    Abstract:
    Intravenous radionuclide cystography (IVRNC) with one injection on 99m-Tc-DTPA measures renal function and detects vesico-renal reflux [1, 2, 3]. This paper describes a possible means of detecting incompetent ureteric orifices during IVRNC examinations. In some patients a hold-up of material in the renal areas (stasis) was observed which suddenly cleared at micturition. A prospective study of 58 patients who had IVRNC and cystoscopy within 28 days of each other revealed that 76.3% had anatomically abnormal ureteric orifices on the same side as the stasis. This contrasted with only 12.8% of abnormal uretic orifices found in patients not showing stasis (p less than 0.005). As incompetent ureteric orifices are recognised as the major aetiological factor in vesico-renal reflux [4, 5, 6] this additional information gained at IVRNC could be of clinical use and perhaps avoid some cystoscopies.
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