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Updated: Apr 20, 2026

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Published on: January 7, 2019
[Urodynamic profile of voiding disorders persisting after treatment of posterior urethral valve]
L Riah1, K Belhaj1, F Lmidmani1
1Service de médecine physique et de réadaptation fonctionnelle, CHU Ibn Rochd, Casablanca, Maroc.
Insights
Posterior urethral valves (PUV) can lead to persistent urinary issues and end-stage renal disease in boys. Urodynamic testing is crucial for managing ongoing voiding symptoms after initial treatment.
Area of Science:
- Pediatric Urology
- Nephrology
- Urodynamics
Context:
- Posterior urethral valves (PUV) represent the primary cause of bladder outlet obstruction in infants.
- PUV significantly impacts both renal and bladder function from an early age.
Purpose:
- To evaluate the long-term urinary disorders and renal function in boys treated for PUV.
- To assess the utility of urodynamic studies in persistent voiding dysfunction post-PUV treatment.
Summary:
- A retrospective study analyzed 35 boys with urinary issues post-PUV treatment, with a mean age of 7.56 years.
- Common issues included recurrent UTIs, urinary leakage, urinary tract dilation, and 18 cases of end-stage renal disease (8 needing transplantation).
- Urodynamic findings revealed voiding dysfunction in 14, bladder hyperactivity in 20, and hypotonic bladders in 9 children.
Impact:
- Urodynamic evaluations are essential for persistent voiding symptoms following valve ablation, even with favorable radiological outcomes.
- This study highlights the significant long-term morbidity associated with PUV, emphasizing the need for comprehensive follow-up and management.
Purpose:
Posterior urethral valves (PUV) are the most common cause of bladder outlet obstruction in infancy that impairs renal and bladder function.
Material And Methods:
We realize a retrospective study and examined 35 boys with urinary disorders post-treatment of PUV, seen at the urodynamic consultation.
Results:
The mean age: 7.56 years, urinary problems are dominated by recurrent urinary tract infections and urinary leakage, morphological assessment is marked by the constant expansion of the urinary tract and bladder, 18 children have end-stage renal disease of which 8 are candidates for transplantation. About urodynamic, the uroflowmetry with measure of post-void urine residue: dysuria with significant residual urine in 14 children; for cystometry, 20 children with bladder hyperactivity, 9 bladders are hypotonic hypoactive with high capacity, 6 explorations are normal.
Conclusion:
Urodynamic explorations are all interest when voiding symptoms persist after endoscopic section valves and despite a good radiological result.
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