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Uroflowmetry in neurologically normal children with voiding disorders
Insights
Spontaneous uroflowmetry is not effective for screening detrusor/sphincter dyssynergia in children with voiding issues. This method failed to identify children with this condition, even with complete diagnostic evaluations.
Area of Science:
- Pediatric Urology
- Urodynamics
- Voiding Dysfunction
Background:
- Functional infravesical obstruction, specifically detrusor/sphincter dyssynergia (DSD), can cause voiding disorders in children.
- Early identification of DSD is crucial for appropriate management and preventing complications.
- Spontaneous uroflowmetry is a non-invasive test sometimes used for initial screening.
Purpose of the Study:
- To evaluate the diagnostic utility of spontaneous uroflowmetry in screening for DSD in neurologically normal children.
- To determine if uroflowmetry parameters can effectively identify children with DSD.
Main Methods:
- A prospective study included 39 children with urinary tract infections and/or enuresis without neurological deficits.
- Participants underwent comprehensive urodynamic assessments, including spontaneous uroflowmetry, cystometry-EMG, and pressure-flow-EMG.
- Other investigations included intravenous urography, voiding cystography, and cystoscopy.
Main Results:
- Detrusor/sphincter dyssynergia was diagnosed in 22% of the studied children.
- Neither the uroflowmetry curve pattern nor individual flow variables could reliably identify children with DSD.
- The diagnostic yield of spontaneous uroflowmetry for DSD was found to be inefficient.
Conclusions:
- Spontaneous uroflowmetry is not an efficient screening tool for detrusor/sphincter dyssynergia in neurologically normal children with voiding disorders.
- Further urodynamic studies are necessary for accurate diagnosis of DSD in this population.
- The absence of anatomical bladder outlet obstruction does not preclude the need for more advanced testing if DSD is suspected.
Abstract:
A prospective study was undertaken to delineate the role of spontaneous uroflowmetry as screening procedure for functional infravesical obstruction (detrusor/sphincter dyssynergia). More than 70% of thirty-nine children referred for urinary tract infections and/or enuresis in the absence of neurological deficits underwent a complete diagnostic program including intravenous urography, voiding cystography and cystoscopy as well as spontaneous uroflowmetry, cystometry-emg and pressure-flow-emg study. The incidence of dyssynergia was 22%. However, neither the flow curve pattern nor single flow variables were able to identify children with dyssynergia. Consequently uroflowmetry seems inefficient in the screening for dyssynergia in neurological normal children with voiding disorders in the absence of anatomical bladder outlet obstruction.