Libor Lunacek1,2, Marcel Gärtner3, Jan Krhut4,5, David Mika1,2, Radek Sykora1,2, Peter Zvara6,7,8. 1. Department of Urology, University Hospital, 17. listopadu 1790, 708 52, Ostrava, Poruba, Czech Republic. 2. Department of Surgical Studies, Ostrava University, Ostrava, Czech Republic. 3. Department of Obstetrics and Gynecology, University Hospital, Ostrava, Czech Republic. 4. Department of Urology, University Hospital, 17. listopadu 1790, 708 52, Ostrava, Poruba, Czech Republic. jan.krhut@fno.cz. 5. Department of Surgical Studies, Ostrava University, Ostrava, Czech Republic. jan.krhut@fno.cz. 6. Department of Surgery, University of Southern Denmark, Odense, Denmark. 7. Department of Urology, University of Southern Denmark, Odense, Denmark. 8. Biomedical Laboratory, University of Southern Denmark, Odense, Denmark.
Abstract
INTRODUCTION AND HYPOTHESIS: The objective was to evaluate the intra-individual variability of uroflowmetry (UFM) in healthy control subjects and women suffering from stress, urge, and mixed urinary incontinence. METHODS: A total of 35 healthy controls (group A) and 105 women suffering from urinary incontinence were enrolled in the study. Thirty-five women suffered from stress urinary incontinence (group B), 35 women suffered from mixed urinary incontinence (group C), and 35 women with overactive bladder both dry and wet (group D). All participants were asked to perform UFM measurement three times. The following parameters were analyzed: voided volume (VV), peak flow (Qmax), average flow (Qave), volume-corrected peak flow cQmax (cQmax = Qmax/2√ VV), volume-corrected average flow (cQave = Qave/2√ VV), and postvoid residual volume (PVR). Statistical analysis was performed using the analysis of variance on repeated measurements. Relative error was calculated using variation coefficients reported as a percentage of the average. All descriptive characteristics were reported as means ± standard deviation (SD). p values ≤0.05 were considered statistically significant. RESULTS: No statistically significant intra-individual difference in any of the recorded parameters was identified among the three UFM recordings in groups A, C, and D. The intra-individual variability of the following parameters reached statistical significance in patients suffering from stress urinary incontinence (group B): Qmax (p = 0.0016), Qave (p = 0.0005), and cQave (p = 0.0389). A significant difference was only observed in comparison between the first and second consecutive recordings. CONCLUSIONS: This study provides evidence supporting the high yield and good intra-individual reproducibility of UFM.
INTRODUCTION AND HYPOTHESIS: The objective was to evaluate the intra-individual variability of uroflowmetry (UFM) in healthy control subjects and women suffering from stress, urge, and mixed urinary incontinence. METHODS: A total of 35 healthy controls (group A) and 105 women suffering from urinary incontinence were enrolled in the study. Thirty-five women suffered from stress urinary incontinence (group B), 35 women suffered from mixed urinary incontinence (group C), and 35 women with overactive bladder both dry and wet (group D). All participants were asked to perform UFM measurement three times. The following parameters were analyzed: voided volume (VV), peak flow (Qmax), average flow (Qave), volume-corrected peak flow cQmax (cQmax = Qmax/2√ VV), volume-corrected average flow (cQave = Qave/2√ VV), and postvoid residual volume (PVR). Statistical analysis was performed using the analysis of variance on repeated measurements. Relative error was calculated using variation coefficients reported as a percentage of the average. All descriptive characteristics were reported as means ± standard deviation (SD). p values ≤0.05 were considered statistically significant. RESULTS: No statistically significant intra-individual difference in any of the recorded parameters was identified among the three UFM recordings in groups A, C, and D. The intra-individual variability of the following parameters reached statistical significance in patients suffering from stress urinary incontinence (group B): Qmax (p = 0.0016), Qave (p = 0.0005), and cQave (p = 0.0389). A significant difference was only observed in comparison between the first and second consecutive recordings. CONCLUSIONS: This study provides evidence supporting the high yield and good intra-individual reproducibility of UFM.
Authors: Werner Schäfer; Paul Abrams; Limin Liao; Anders Mattiasson; Francesco Pesce; Anders Spangberg; Arthur M Sterling; Norman R Zinner; Philip van Kerrebroeck Journal: Neurourol Urodyn Date: 2002 Impact factor: 2.696
Authors: Dong-Gi Lee; Jonathan Gerber; Vinaya Bhatia; Nicolette Janzen; Paul F Austin; Chester J Koh; Sang Hoon Song Journal: Int Neurourol J Date: 2021-12-31 Impact factor: 2.835