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Updated: May 24, 2026

Optimizing Mouse Urodynamic Techniques for Improved Accuracy

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Neurogenic lower urinary tract dysfunction--do we need same session repeat urodynamic investigations?

Carlos H Suzuki Bellucci¹, Jens Wöllner, Flavia Gregorini

¹Neuro-Urology, Spinal Cord Injury Center and Research, University of Zürich, Balgrist University Hospital, Zürich, Switzerland.

The Journal of Urology

|February 21, 2012

Summary

Repeat urodynamic investigations for neurogenic lower urinary tract dysfunction show excellent repeatability for detrusor overactivity but poor agreement for other parameters. Clinical decisions should not rely on a single urodynamic test due to potential variability.

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Detrusor Underactivity Model in Rats by Conus Medullaris Transection

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Published on: August 28, 2020

Area of Science:

Urology
Neuroscience
Medical Diagnostics

Background:

Neurogenic lower urinary tract dysfunction (NLUTD) affects bladder control in patients with neurological conditions.
Accurate urodynamic investigations are crucial for managing NLUTD.
The necessity of repeat urodynamic studies within the same session for NLUTD patients remains unclear.

Purpose of the Study:

To evaluate the repeatability of same-session repeat urodynamic investigations in patients with NLUTD.
To determine if repeat urodynamic measurements provide consistent results for clinical decision-making.

Main Methods:

Prospective study of 226 NLUTD patients undergoing same-session repeat urodynamic investigations.
Inclusion of consecutive filling cystometry for all patients and pressure-flow studies for voiding patients.
Assessment of repeatability using Bland-Altman limits of agreement and kappa (κ) statistic.

Main Results:

Detrusor overactivity demonstrated excellent repeatability (κ=0.87).
Other urodynamic parameters showed wide limits of agreement, indicating poor repeatability.
Significant variability was observed in measurements beyond detrusor overactivity.

Conclusions:

Same-session repeat urodynamic investigations show high reliability for detrusor overactivity in NLUTD.
Other urodynamic parameters lack sufficient agreement for reliable repeat measurements.
Clinical decisions for NLUTD management should consider the potential for variability in urodynamic findings and may require repeat testing over time.