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Related Experiment Videos

Aspects concerning posterior urethral valves.

M D Melekos1, H W Asbach, S Giannoulis

  • 1Department of Urology, Patras University School of Medicine, Rio-Patras, Greece.

International Urology and Nephrology
|January 1, 1989
PubMed
Summary
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Posterior urethral valves (PUV) in boys often present with reflux and upper tract dilation. Primary valve ablation effectively treated most cases, with urinary diversion reserved for persistent issues.

Area of Science:

  • Pediatric Urology
  • Pediatric Surgery
  • Medical Diagnostics

Background:

  • Posterior urethral valves (PUV) are a common congenital anomaly in male infants.
  • PUV can lead to significant urinary tract complications, including vesicoureteral reflux and upper tract dilation.
  • Clinical presentation varies with age, from neonatal urinary retention to voiding dysfunction in older children.

Purpose of the Study:

  • To evaluate the clinical presentation, diagnostic findings, and treatment outcomes for boys with posterior urethral valves.
  • To assess the efficacy of primary valve ablation as a management strategy.
  • To identify factors influencing the need for secondary interventions like urinary diversion.

Main Methods:

  • Retrospective review of 26 boys diagnosed with posterior urethral valves.

Related Experiment Videos

  • Analysis of presenting symptoms, radiological findings (vesicoureteral reflux, upper tract dilation), and treatment modalities.
  • Evaluation of treatment success based on clinical and radiological improvement.

    • Main Results:

    • At diagnosis, 69% of boys had vesicoureteral reflux and 92% had upper tract dilation.
    • Neonates commonly presented with urine retention and failure to thrive; older children with voiding dysfunction and infections.
    • Primary valve ablation was performed in 24 boys, with 62.5% achieving adequate resolution without further intervention.

    Conclusions:

    • Posterior urethral valves are associated with high rates of vesicoureteral reflux and upper tract dilation at diagnosis.
    • Primary valve ablation is a highly effective initial treatment for most boys with PUV.
    • Urinary diversion remains a necessary option for refractory cases requiring further management.