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The voiding pattern in infants with dilating reflux

U Sillén1, A L Hellström, G Holmdahl

  • 1Departments of Paediatric Surgery and Urotherapy, Sahlgren's University Hospital Ostra, Göteborg, Sweden.

BJU International
|May 8, 1999
PubMed

Insights

Infants with dilating vesico-ureteric reflux (VUR) exhibit distinct voiding patterns compared to healthy infants, indicating potential bladder dysfunction. These differences vary between boys and girls.

Area of Science:

  • Pediatric Urology
  • Nephrology
  • Infant Health

Background:

  • Vesico-ureteric reflux (VUR) is a common condition in infants.
  • Understanding voiding patterns may reveal underlying bladder dysfunction in VUR.
  • Previous studies established voiding patterns in healthy infants.

Purpose of the Study:

  • To compare the voiding patterns of infants with dilating VUR to those of healthy infants.
  • To investigate if voiding pattern differences support bladder dysfunction in VUR.
  • To identify sex-specific voiding characteristics in infants with VUR.

Main Methods:

  • A noninvasive 4-hourly voiding record was utilized.
  • Forty-one infants with dilating VUR (grades 3-5) were studied.
  • Results were compared with a cohort of healthy infants of similar age.

Main Results:

  • Boys with VUR showed more frequent, smaller, and interrupted voids than healthy boys.
  • Girls with VUR presented as infrequent voiders with higher volumes.
  • Both boys and girls with VUR had significantly increased residual urine and bladder capacity.

Conclusions:

  • The voiding pattern in infants with dilating VUR differs significantly from healthy infants.
  • Observed voiding characteristics suggest bladder dysfunction in refluxing infants.
  • Sex-specific voiding patterns in VUR align with invasive urodynamic findings.
Abstract

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