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Revista Cubana de Pediatría
versão On-line ISSN 1561-3119
Resumo
DIAZ ALVAREZ, Manuel Federico e ACOSTA BATISTA, Bárbara. Follow-up of Neonatal Urinary Tract Dilatation Diagnosed in the Evaluation of Urinary Tract Infection. Rev Cubana Pediatr [online]. 2023, vol.95 Epub 01-Mar-2023. ISSN 1561-3119.
OBjective:
To show the characteristics and follow-up of urinary tract dilatation in neonates with urinary tract infection.
Methods:
Observational, descriptive study performed from 1992 to 2019, in neonates admitted with urinary tract infection. All underwent renal ultrasound and voiding urethrocystography. The clinical and radioimaging features of presentation were analyzed in the follow-up of urinary tract dilatation,
Results:
403 patients were studied. The median follow-up was 13 months. Renal ultrasound was positive for urinary tract dilatation in 148 (36.7%). Mild degrees of dilatation (5-10 mm) predominated over moderate and severe degrees. In 38 cases (9.4%) urinary tract dilatation was associated with vesico-ureteral reflux. The most common condition was transient dilatation with a median disappearance of dilatation 5 months. There was significant statistical association of the disappearance of urinary tract dilatation with the degree of dilatation and between those cases qualified as transient with the other carriers of some urinary tract anomaly who also had disappearance of dilatation at some point in their evolution.
Conclusions:
About one third of neonates with urinary tract infection had dilatation of the urinary tract on renal ultrasound, predominantly of mild degree, probably expression of an underlying anomaly. Resolution of dilatation frequently occurs in those cases not associated with urinary tract anomaly, usually within the first year of life.
Palavras-chave : urinary tract dilatation; hydronephrosis; ureteral-vesico-ureteral reflux; urinary tract infection; urinary tract anomalies; newborn.