Voiding urosonography and voiding cystourethrography in primary vesicoureteral reflux associated with mild prenatal hydronephrosis: a comparative study.
Pediatr Radiol
; 50(9): 1271-1276, 2020 08.
Article
em En
| MEDLINE
| ID: mdl-32638052
ABSTRACT
BACKGROUND:
Contrast-enhanced harmonic voiding urosonography has been introduced as a sensitive, radiation-free imaging method for the diagnosis of vesicoureteric reflux.OBJECTIVE:
To evaluate the occurrence/severity of vesicoureteric reflux in infants with mild prenatal hydronephrosis comparing voiding cystourethrography and voiding urosonography. MATERIALS ANDMETHODS:
Sixty infants with prenatal hydronephrosis were studied (anteriοposterior pelvic diameter 5-9 mm on ultrasound [US] at gestational weeks 21-30). Postnatal US was performed within the first month of life, as well as voiding cystourethrography and contrast-enhanced voiding urosonography at 1.5-2.5 months at the same session.RESULTS:
Vesicoureteric reflux was diagnosed on at least one modality in 19/60 (32%) infants, and more often on contrast-enhanced voiding urosonography (18/60, 30%) than on voiding cystourethrography (8/60, 13%), P=0.046. Among girls, reflux was more often seen on contrast-enhanced voiding urosonography (6/16, 38%) than on voiding cystourethrography (1/16, 6%), P=0.03. Vesicoureteric reflux missed by voiding cystourethrography was more severe (Grades I, II and III in one, nine and four kidney-ureter-units, respectively), compared with a single case missed by contrast-enhanced voiding urosonography (Grade I in one kidney-ureter-unit).CONCLUSION:
In the absence of a reference standard, our results imply that voiding cystourethrography might underdiagnose reflux, and/or contrast-enhanced voiding urosonography may overdiagnose reflux.Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Refluxo Vesicoureteral
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Ultrassonografia
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Hidronefrose
Tipo de estudo:
Diagnostic_studies
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Risk_factors_studies
Limite:
Female
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Humans
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Male
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Newborn
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Pregnancy
Idioma:
En
Revista:
Pediatr Radiol
Ano de publicação:
2020
Tipo de documento:
Article
País de afiliação:
Grécia