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Urodynamic findings in postprostatectomy incontinence

J C Winters1, R A Appell, R R Rackley

  • 1Department of Urology, Louisiana State University, New Orleans, USA.

Neurourology and Urodynamics
|October 17, 1998
PubMed
Summary
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Post-prostatectomy incontinence is most often due to sphincteric incompetence, though bladder dysfunction can coexist. Urodynamic studies are crucial for identifying the precise cause of incontinence in each patient.

Area of Science:

  • Urology
  • Gastroenterology

Background:

  • Post-prostatectomy incontinence significantly impacts patient quality of life.
  • Variability exists in reported contributions of bladder dysfunction to post-prostatectomy incontinence.

Purpose of the Study:

  • To retrospectively review videourodynamic findings in patients with post-prostatectomy incontinence.
  • To determine the contributions of bladder and sphincteric causes to incontinence after prostatectomy.

Main Methods:

  • Ninety-two patients underwent multichannel videourodynamic testing at least 1 year post-prostatectomy.
  • Valsalva leak point pressures (VLPP), bladder compliance, capacity, and detrusor instability (DI) were assessed.
  • Patients were categorized based on prior radical prostatectomy (RP) or transurethral resection of the prostate (TURP).

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Main Results:

  • Sphincteric incompetence was the predominant finding (92%), with VLPP obtained in most patients.
  • Detrusor instability (DI) was present in 37% of patients, but was the sole cause of incontinence in only 3.3%.
  • TURP patients showed a statistically significant higher incidence of DI compared to RP patients (P=0.019).

Conclusions:

  • Sphincteric incompetence is the most common cause of post-prostatectomy incontinence.
  • Bladder dysfunction (DI) can coexist with or be an isolated cause of incontinence.
  • Urodynamic studies are essential for accurate diagnosis and tailored treatment of post-prostatectomy incontinence.