March 3, 2026Open Access

Impact of Weight Based Versus Diary Based Filling Rate on the Accuracy of Invasive Urodynamics in Patients With Refractory Voiding Symptoms

Key Points

The BW/4 method aligns better with physiological filling rates, enhancing accuracy in invasive urodynamics.
The 10% MVV method allows faster filling and reduces the duration of urodynamic studies without compromising quality.
Both methods provide reliable estimates of maximum cystometric capacity (MCC) and do not significantly alter the parameters measured.
Further exploration in more diverse populations is warranted, as current findings may not apply to all subsets of patients.

Abstract

Both the BW/4 and 10% MVV formulas provide reliable estimates of MCC and do not significantly alter the urodynamic parameters. While the BW/4 method better aligns with the physiological filling rates, the 10% MVV method can result in faster filling and shorter duration of the urodynamic study, without adversely affecting its quality. These findings, however, may not apply to patients with storage LUTS, and studies in more diverse populations are warranted.

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Cite This Study

Yadav et al. (Wed,) studied this question.

synapsesocial.com/papers/69a75d15c6e9836116a268b9 https://doi.org/https://doi.org/10.1002/nau.70218

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