[Urinary flow in children: correlation with age, body height and body surface area]

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J L Amaro1, J C Trindade Filho, L A Vercesi

  • 1Departamento de Urologia, Faculdade de Medicina, UNESP, Botucatu, São Paulo, Brasil.

Journal D'Urologie
|January 1, 1996
PubMed

Insights

This study establishes normal peak flow rate (Qmax) values for boys aged 6-14 years. Findings show Qmax increases with age and correlates with voided volume and height, aiding lower urinary tract obstruction diagnosis.

Area of Science:

  • Pediatric Urology
  • Diagnostic Imaging
  • Urodynamics

Context:

  • Interpreting peak flow rate (Qmax) for lower urinary tract obstruction in children is challenging due to limited uroflowmetry data.
  • This study addresses the need for normative Qmax values in pediatric populations.

Purpose:

  • To establish age-specific reference ranges for peak flow rate (Qmax) and voided volume (Vol) in boys.
  • To investigate the correlation between Qmax, voided volume, height, and age in pediatric subjects.

Summary:

  • 167 boys aged 6-14 years were analyzed for weight, height, body surface area, Qmax, and Vol.
  • Significant correlations were found between Qmax and Vol (ages 8-14), and Qmax and height (ages 6-7 and 12-14).
  • Results indicate Qmax increases with age and correlates positively with voided volume.

Impact:

  • Provides essential normative data for pediatric uroflowmetry, improving the diagnosis of lower urinary tract obstruction.
  • Enhances clinical interpretation of Qmax measurements in boys.
  • Contributes to a better understanding of bladder function and development in children.

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