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Revista Cubana de Pediatría

versão On-line ISSN 1561-3119

Resumo

DIAZ ALVAREZ, Manuel et al. Significant leukocyturia as an indicator of probable urinary tract infection without positive culture. Rev Cubana Pediatr [online]. 2021, vol.93, suppl.1  Epub 01-Dez-2021. ISSN 1561-3119.

Introduction:

The presence of leukocyturia guides towards the probability of urinary tract infection in children.

Objective:

Determine whether significant leukocyturia is a marker of urinary tract infection even without positive urine culture.

Methods:

Descriptive and retrospective study in patients discharged from the Neonatology and Nephrology Services of "Juan Manuel Márquez" University Pediatric Hospital, from January 2018 to December 2019, which included 124 children of 2 years of age; one group with confirmed urinary tract infection (clinical, leukocyturia of more than 10 000 leukocytes/ml and with positive urine cultures) and another group of suspected ones (clinical, with significant leukocyturia of more than 100 000 leukocytes/ml, but without positive urine culture). Clinical, laboratory and radioimaging variables were compared.

Results:

Escherichia coli was isolated in 78.6% of the children. Fever was a common clinical finding. The reactant acute phase with the greatest variation was the erythrocyte sedimentation rate (71.0 %), there were ultrasound alterations (79.8 %) and voiding urethrocystography (50.0 %). There were no statistically significant differences when comparing clinical, laboratory and radioimaging variables between the group of patients with urine tract infection confirmed by positive urine culture and the group suspected by the clinic findings, with significant leukocyturia of more than 100 000 leukocytes/ml, but without positive urine culture.

Conclusions:

In children with clinical manifestations of infection, with the presence of significant leukocyturia (more than 100 000 leukocytes/ml), even if they do not have a positive urine culture result, they should be provided with the medical care established for a patient with urinary tract infection.

Palavras-chave : Urinary tract infection; significant leukocyturia; urine culture; vesico-ureteral reflux; fever; newborn; baby.

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