Related Experiment Video
Updated: Jun 19, 2026

Ultrasonography of the Adult Male Urinary Tract for Urinary Functional Testing
Published on: August 14, 2019
Correlation between uroflowmetry parameters and treatment outcome in children with dysfunctional voiding
Zivkovic Vesna1, Lazovic Milica, Vlajkovic Marina
1Clinic of Physical Medicine, Rehabilitation and Prosthetics, Clinical Centre Nis, Bul. Zorana Djindjica 48, 18 000 Nis, Serbia. gilez63@gmail.com
Insights
Improved uroflowmetry (urinary flow measurement) parameters and curve patterns correlate with successful treatment outcomes in children with dysfunctional voiding, leading to better urinary continence and fewer infections.
Area of Science:
- Pediatric Urology
- Urodynamics
- Child Health
Background:
- Dysfunctional voiding is a common cause of lower urinary tract symptoms in children.
- Objective urodynamic parameters can help assess treatment efficacy.
Purpose of the Study:
- To correlate subjective clinical outcomes with objective uroflowmetry parameters and curve patterns in children with dysfunctional voiding.
- To evaluate the effectiveness of urotherapy and pelvic floor exercises.
Main Methods:
- 75 children with dysfunctional voiding were randomized into standard urotherapy with pelvic floor exercises or conservative treatment.
- Uroflowmetry, pelvic floor electromyography, and post-void residual (PVR) urine ultrasound were performed before and after a 12-month treatment period.
- Urodynamic findings were compared between 'cured' and 'unchanged' clinical outcome groups.
Main Results:
- Children with cured urinary incontinence and nocturnal enuresis showed significantly increased voided volume, average and peak flow rates, and decreased PVR urine compared to the 'unchanged' group.
- A significant decrease in PVR urine was observed in children with cured urinary tract infections (UTIs).
- A bell-shaped uroflowmetry curve pattern was more frequent in children with cured urinary incontinence and UTIs.
Conclusions:
- Improvements in clinical symptoms of dysfunctional voiding correlate with enhanced uroflowmetry parameters and curve patterns.
- Optimizing the voiding phase is crucial for achieving urinary continence and resolving UTIs in children.
Purpose:
To investigate the correlation between subjective (clinical) treatment outcome and objective uroflowmetry parameters and curve pattern in children with dysfunctional voiding.
Method:
Seventy-five children were randomly allocated to two urotherapy programs. Group A was submitted to standard urotherapy and pelvic floor exercises while group B received conservative treatment. Constipation and recurrent urinary tract infections (UTIs) were treated in both groups. Selected children from both groups received pharmacotherapy (anticholinergics or desmopressin). Uroflowmetry with electromyography of the pelvic floor and ultrasound post-void residual (PVR) urine volumes were obtained before and at the end of the 12-month treatment period. Uroflowmetry findings were stratified into two categories based on clinical treatment outcome: 'cured' and 'unchanged'. Uroflowmetry findings were compared between categories at the beginning and the end of the investigation.
Results:
Voided volume, average and peak flow rates were significantly increased while PVR urine was decreased in children with cured urinary incontinence and nocturnal enuresis compared with 'unchanged' category. Significant decrease of PVR urine was noted in children with cured UTIs. The frequency of a bell-shaped curve was significantly higher compared to other curve patterns in children with cured urinary incontinence and UTIs.
Conclusion:
Post-treatment improvement in clinical symptoms correlated with improvement in uroflowmetry parameters and curve pattern. Correction of voiding phase is necessary for urinary continence achievement and resolution of UTIs.
Related Concept Videos
Urodynamic Studies: Uroflowmetry
Imaging Studies VI: Voiding Cystourethrography and Cystography
Imaging Studies V: Intravenous Urography and Retrograde Pyelography
The Micturition Reflex
The process begins with bladder filling, where the bladder wall stretches as urine accumulates. This stretching activates the urine storage reflex, mediated by the sacral spinal segments and the pontine storage center. Efferent sympathetic impulses stimulate the detrusor muscle to relax and the internal urethral sphincter to contract, facilitating urine...
Imaging Studies I: Kidney, Ureter, and Bladder Studies
Urinary Tract Calculi II: Pathophysiology and Clinical Manifestations
