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Enuresis and urethral instability.

L Penders, J de Leval, R Petit

    European Urology
    |January 1, 1984
    PubMed
    Summary
    This summary is machine-generated.

    This study found that urethral instability can trigger bladder contractions, causing enuresis (bedwetting). Phenylpropanolamine effectively treated bedwetting in most patients by stabilizing the vesicosphincteric unit.

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    Area of Science:

    • Urology
    • Pediatric Urology
    • Neuro-urology

    Background:

    • Refractory enuresis (bedwetting) poses a significant challenge in pediatric urology.
    • The interplay between urethral and bladder function in enuresis remains incompletely understood.

    Purpose of the Study:

    • To investigate the functional relationship between urethral and bladder dynamics in patients with refractory enuresis.
    • To explore the role of urethral instability as a potential trigger for detrusor overactivity and enuresis.
    • To evaluate the efficacy of phenylpropanolamine in managing enuresis by stabilizing the vesicosphincteric unit.

    Main Methods:

    • Simultaneous urethrocystometry was performed on 31 patients diagnosed with refractory enuresis.
    • Patients were categorized based on urethral and bladder instability findings.

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  • A subset of patients received phenylpropanolamine (25-50 mg) at bedtime to assess treatment response.

    • Main Results:

    • Urethral instability was identified in 14 patients, combined urethral and bladder instability in 11, and isolated uninhibited bladder in 3.
    • Urethral instability is proposed as a trigger mechanism for detrusor contractions, explaining stable bladder enuresis.
    • Phenylpropanolamine administration resulted in successful cessation of bedwetting in 11 out of 16 treated patients.

    Conclusions:

    • Urethral instability plays a critical role in the pathophysiology of refractory enuresis.
    • Targeting urethral and bladder stabilization with medications like phenylpropanolamine shows promise in treating enuresis.
    • Further research into the vesicosphincteric unit's function is warranted for improved enuresis management.