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Archivos argentinos de pediatría

Print version ISSN 0325-0075On-line version ISSN 1668-3501


TOMBESI, María M; ALCONCHER, Laura F; LUCARELLI, Lucas  and  CICCIOLI, Agustina. Algorithms imaging tests comparison following the first febrile urinary tract infection in children. Arch. argent. pediatr. [online]. 2017, vol.115, n.4, pp.370-373. ISSN 0325-0075.

Objectives. To compare the diagnostic sensitivity, costs and radiation doses of imaging tests algorithms developed by the Argentine Society of Pediatrics in 2003 and 2015, against British and American guidelines after the first febrile urinary tract infection (UTI). Population and Methods. Inclusion criteria: children < 2 years old with their first febrile UTI and normal ultrasound, voiding cystourethrography and dimercaptosuccinic acid scintigraphy, according to the algorithm established by the Argentine Society of Pediatrics in 2003, treated between 2003 and 2010. The comparisons between algorithms were carried out through retrospective simulation. Results. Eighty (80) patients met the inclusion criteria; 51 (63%) had vesicoureteral reflux (VUR); 6% of the cases were severe. Renal scarring was observed in 6 patients (7.5%). Cost: ARS 404,000. Radiation: 160 millisieverts. With the Argentine Society of Pediatrics' algorithm developed in 2015, the diagnosis of 4 VURs and 2 cases of renal scarring would have been missed. The cost of this omission would have been ARS 301,800 and 124 millisieverts of radiation. British and American guidelines would have missed the diagnosis of all VURs and all cases of renal scarring, with a related cost of ARS 23,000 and ARS 40,000, respectively and 0 radiation. Conclusion. Intensive protocols are highly sensitive to VUR and renal scarring, but they imply high costs and doses of radiation, and result in questionable benefits.

Keywords : Urinary tract infections; Algorithms; Diagnostic imaging; Vesicoureteral reflux; Renal scarring.

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