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  • Title: Technetium-99m-dimercaptosuccinic acid renal scintigraphy in children with urinary tract infections.
    Author: Ajdinović B, Jauković L, Krstić Z, Dopuda M.
    Journal: Hell J Nucl Med; 2006; 9(1):27-30. PubMed ID: 16617390.
    Abstract:
    The aim of this study was to determine the incidence of abnormal dimercaptosuccinic acid-Tc-99m ((99m)Tc-DMSA) renal scintigraphy findings in children with culture proved urinary tract infection (UTI) with or without vesicoureteral reflux (VUR). (99m)Tc-DMSA renal scintigraphy was performed in 343 children with culture documented UTI (247 girls and 96 boys) aged from three months to 14 years (middle age of 4.82 years). The children studied were all those submitted for renal scintiscan to the Institute of Nuclear Medicine, Military Medical Academy, Belgrade during a five-year period (2000-2004). Micturating cystoureterography (MCU) performed in all patients before (99m)Tc-DMSA scan, revealed VUR in 213 children, while in 130 children VUR was not detected by MCU. In 15 of the 213 children the grade of VUR was I, in 88 was II, in 57 was III, in 33 was IV and 20 children had grade V of VUR. Findings of (99m)Tc-DMSA renal scintigraphy were classified as: normal, equivocal and abnormal. Statistical analysis was performed using c(2)test. In all patients abnormal findings were detected in 38% (131/343), normal in 51% (174/343) and equivocal findings in 11% (38/343). In children with UTI and VUR the incidence of abnormal findings was 53% (112/213), of normal 37% (80/213) and of equivocal findings 10% (21/213). In children with UTI without VUR the incidence of abnormal findings was 15% (19/130), of normal findings 72% (94/130), and of equivocal findings 13% (17/130). The incidence of abnormal findings was significantly higher in children with UTI and VUR than in those with UTI without VUR (P<0.001). In children with VUR grades I, II, III, IV and V abnormal findings were 33%, 32%, 60%, 79% and 95% respectively. The incidence of abnormal findings was higher in children with VUR grades IV and V, than in grade I and II (P<0.001). Our results suggest that (99m)Tc-DMSA renal scintigraphy in children can discriminate between grade I-II and IV-V of VUR and also that in children with UTI and VUR abnormal findings in the scintiscan were more than three times higher than in children with UTI alone.
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