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Abnormal voiding parameters in children with severe idiopathic constipation.

K L Y Chung1, N S Y Chao, C S W Liu

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Children with constipation often have abnormal voiding parameters, including issues with voided volume and post-void residual urine. A dilated rectum is linked to these abnormal voiding parameters in pediatric patients.

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Area of Science:

  • Pediatric Gastroenterology
  • Urology
  • Diagnostic Imaging

Background:

  • Idiopathic constipation in children is a common condition.
  • Abnormal voiding parameters may be associated with idiopathic constipation.
  • Understanding these associations is crucial for effective diagnosis and treatment.

Purpose of the Study:

  • To investigate voiding parameters in children diagnosed with constipation.
  • To determine the prevalence of abnormal voiding parameters in this population.
  • To explore the relationship between rectal diameter and voiding parameters.

Main Methods:

  • Seventeen children (aged 5-17) with refractory constipation were recruited.
  • Rectal diameter was measured via transpubic ultrasonography.
  • Uroflowmetry and bladder ultrasonography assessed maximal flow rate, voided volume, and post-void residual urine.

Main Results:

  • Over half (52.9%) of the children exhibited abnormal voiding parameters.
  • Abnormalities were noted in voided volume and/or post-void residual urine.
  • A dilated rectum was significantly associated with abnormal voiding parameters (p=0.015).

Conclusions:

  • Abnormal voiding parameters, specifically concerning voided volume and post-void residual urine, are common in constipated children.
  • Rectal dilation is a significant finding associated with these abnormal voiding parameters.
  • These findings highlight the importance of evaluating voiding function in pediatric constipation.