Abstract
Introduction and hypothesis
Post-void residual urine (PVR) is a key variable in the assessment of the emptying function of the lower urinary tract and is often used as an outcome measure after treatment. Increased PVR can lead to further investigation and treatment, or cancellation of planned incontinence surgery. In a prospective study, we aimed to assess the repeatability of the finding of PVR ≥ 100 ml in urogynaecologic patients.
Methods
Of 396 women with urogynaecologic complaints visiting our outpatient clinic, 297 had PVR measured after a micturition in full privacy preceded by normal desire to void. Women with PVR ≥ 100 ml were offered a second and eventually a third PVR measurement after a subsequent micturition. A Verathon Bladder Scanner BV 9400 was used to measure PVR immediately after micturition.
Results
The prevalence of PVR ≥ 100 was 14%, which declined to 1.3% on repeated measurements. Voided volumes did not vary between voids.
Conclusions
One PVR measurement ≥ 100 ml is unreliable and needs repetition to confirm consistency.
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Conflicts of interest
Marie-Louise Saaby: investigator for Astellas and had travel expenses covered. Gunnar Lose: consultant and/or investigator for Contura, Pfizer, Astellas. This study was investigator driven. There was no external funding.
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Saaby, ML., Lose, G. Repeatability of post-void residual urine ≥ 100 ml in urogynaecologic patients. Int Urogynecol J 23, 207–209 (2012). https://doi.org/10.1007/s00192-011-1614-x
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DOI: https://doi.org/10.1007/s00192-011-1614-x