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Related Experiment Videos

Bladder function in infants.

Ulla Sillén1

  • 1Pediatric Uro-Nephrological Centre, The Queen Silvia Children's Hospital, Göteborg, Sweden.

Scandinavian Journal of Urology and Nephrology. Supplementum
|November 17, 2004
PubMed
Summary

Normal urodynamic findings in infants include small bladder capacity and high voiding pressures, especially in males. Detrusor overactivity is uncommon in early infancy, with patterns shifting towards older children by the end of infancy.

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Area of Science:

  • Pediatric Urology
  • Neonatal Physiology
  • Urodynamics

Background:

  • Urodynamic assessment is crucial for evaluating lower urinary tract function.
  • Establishing normative data for neonates and infants is essential for accurate diagnosis.
  • Previous studies have limited data on early infant urodynamics.

Purpose of the Study:

  • To define normal urodynamic parameters in neonates and infants.
  • To characterize the evolution of urodynamic findings during early development.
  • To differentiate typical findings from potential pathologies.

Main Methods:

  • Systematic review of existing literature on infant urodynamics.
  • Analysis of urodynamic parameters including bladder capacity, voiding pressures, and detrusor activity.
  • Comparison of findings across different age groups within infancy.

Main Results:

  • Neonates and infants typically present with small bladder capacity and high voiding pressures.
  • High voiding pressures are more pronounced in male infants.
  • Dyscoordination during voiding is common; detrusor overactivity during filling is rare.
  • Urodynamic patterns approach those of older children by the end of infancy.

Conclusions:

  • High voiding pressure levels and intermittent pelvic floor activity during voiding are considered normal in early infancy.
  • Detrusor overactivity during bladder filling is uncommon in this age group.
  • Urodynamic findings in infancy show a developmental trajectory towards older pediatric norms.

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