ABSTRACT
OBJECTIVE: To determine whether the presence of abnormal results in DMSA renal scintigraphy indicates pyelonephritis. METHODS: We performed the washout test in 17 children with urinary tract infection, as a criterion standard, to locate the infection site. All the children underwent DMSA renal scintigraphy in the acute phase of the disease. The results were analyzed by the chi-square test or Fisher test. RESULTS: DMSA renal scintigraphy revealed changes in all five cases of pyelonephritis, suggesting acute kidney involvement. On the other hand, only one child with cystitis (total = 12 cases) had abnormal results in renal scintigraphy. Sensitivity and specificity were 100% and 92%, respectively. CONCLUSION: DMSA renal scintigraphy is a sensitive method for the diagnosis of pyelonephritis in children.
ABSTRACT
OBJECTIVE: Urinary tract infections are caused by various gram-negative bacteria. Escherichia coli is the most common causative agent in all groups of patients. Staphylococcus saprophyticus is now recognized as a common cause of urinary tract infection in adolescents and young adult women. METHODS: Review of literature and clinical experience with urinary tract infections in adolescents at the Pediatric Nephrology Department of Hospital Santa Casa de São Paulo. RESULTS: Lower urinary tract infection, hematuria and dysuria were the most frequent symptoms observed in infections caused by Staphylococcus saprophyticus. Some asymptomatic cases were observed. The infection may be associated with adverse effects of maternal and fetal health during pregnancy. CONCLUSIONS: This article reviews the diagnosis, etiology, treatment, and complications associated with urinary tract infections in adolescents.
