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Related Experiment Videos

Simple standing incremental cystometry as a screening method for detrusor instability.

P K Sand1, L T Brubaker, T Novak

  • 1Department of Obstetrics and Gynecology, Rush Medical College, Chicago, Illinois.

Obstetrics and Gynecology
|March 1, 1991
PubMed
Summary
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Standing retrograde incremental water cystometry is a simple, reproducible, and sensitive method for diagnosing detrusor instability in women. Performing the test twice improves accuracy, offering a valuable alternative to complex urodynamics.

Area of Science:

  • Urology
  • Gynecology
  • Diagnostic Medicine

Background:

  • Urinary incontinence is a common condition affecting women.
  • Accurate diagnosis of detrusor instability is crucial for effective treatment.
  • Multichannel urodynamics, while effective, may not always be accessible.

Purpose of the Study:

  • To evaluate the reproducibility, sensitivity, specificity, and predictive values of standing incremental retrograde water cystometry.
  • To assess the diagnostic accuracy of this simple cystometry method for detrusor instability.
  • To determine if this method is a viable alternative to multichannel urodynamics.

Main Methods:

  • One hundred neurologically normal women with urinary incontinence underwent two standing incremental retrograde water cystometrograms on separate days.

Related Experiment Videos

  • Urethrocystometry was also performed.
  • Data were analyzed for reproducibility, sensitivity, specificity, and predictive values.

    • Main Results:

    • Standing incremental retrograde water cystometry demonstrated good reproducibility (84% similar results).
    • Sensitivities for detecting detrusor instability were high (84.3% and 90.2% on first and second tests).
    • Combined tests achieved 92.3% sensitivity and 86.7% negative predictive value for detrusor instability, found in 64% of patients.

    Conclusions:

    • Standing incremental retrograde water cystometry is a simple, inexpensive, reproducible, and sensitive diagnostic tool.
    • Performing the test on two occasions enhances diagnostic accuracy for detrusor instability.
    • This method offers a reliable alternative when multichannel urodynamics are unavailable in high-prevalence populations.