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Related Experiment Videos

Frequency-volume charts: a tool to evaluate bladder sensation.

Stefan De Wachter1, Jean-Jacques Wyndaele

  • 1Department of Urology, University of Antwerpen, Wilrijk, Belgium.

Neurourology and Urodynamics
|November 5, 2003
PubMed
Summary

Frequency-volume charts offer a non-invasive method to assess bladder sensation during daily life. This approach aligns with cystometric findings, providing a valuable tool for understanding bladder perception.

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Area of Science:

  • Urology
  • Physiology
  • Medical Devices

Background:

  • Traditional bladder sensation evaluation involves invasive cystometry and artificial stimulation.
  • Non-invasive methods are needed to study bladder sensation in natural daily life settings.

Purpose of the Study:

  • To investigate the utility of frequency-volume charts as a non-invasive tool for assessing bladder sensation.
  • To compare sensory data from frequency-volume charts with conventional cystometric bladder filling.

Main Methods:

  • Fifteen healthy female students completed frequency-volume charts at home, rating bladder fullness perception at each void.
  • Participants measured voided volumes after voluntarily postponing micturition.
  • Bladder sensation was also assessed during standard cystometry.

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Main Results:

  • Frequency-volume charts revealed that 65% of voids occurred without a desire to void, and only 9.5% with a strong desire.
  • Urgent desire was reported only after voluntarily postponing urination.
  • Higher perceived fullness correlated with significantly larger voided volumes, comparable to cystometry findings.

Conclusions:

  • Frequency-volume charts, by scoring fullness perception, can effectively evaluate daily bladder sensation.
  • Voiding typically occurs without a strong urge in daily life.
  • The data suggest frequency-volume charts are a viable non-invasive initial tool for bladder sensation studies.