Clinical trial NCT06783699: Comparison Between Positive and Negative sUPP
Official title: Comparisons of Urodynamic and Clinical Findings Between Those Positive and Negative sUPP in Women With Urodynamic Stress Incontinence
Study type: OBSERVATIONAL
Overall status: COMPLETED
Conditions: Urodynamic Stress Incontinence
Keywords: Urodynamic stress incontinence
Lead sponsor: National Taiwan University Hospital
Sponsor class: OTHER
First posted: 2025-01-20
Enrollment: 481
Sex: FEMALE
Minimum age (years): 20
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Observational model: COHORT
Time perspective: RETROSPECTIVE
Sampling method: NON_PROBABILITY_SAMPLE
Study population: Women aged more than 20-year-old with lower urinary tract symptoms underwent urodynamic study and were diagnosed with urodynamic stress incontinence.

Brief summary: Urodynamic stress incontinence is a prevalent condition among women, characterized by involuntary urine leakage during activities that increase intra-abdominal pressure, such as coughing, sneezing, or physical exertion. Stress urethral pressure profile measurement is an important diagnostic tool used during urodynamic studies to assess urethral function. In some women with urodynamic stress incontinence, involuntary urine leakage occurs during this measurement, yet the clinical and urodynamic significance of this leakage remains unclear. This study aims to elucidate the differences in clinical and urodynamic findings between women with urodynamic stress incontinence who experience involuntary urine leakage during stress urethral pressure profile measurement and those who do not. Between July 2009 and December 2023, a total of 481 women with urodynamic stress incontinence were included and divided into positive and negative sUPP groups. The medical records, including urodynamic study, 3-day bladder dairy and questionnaires regarding lower urinary tract symptoms were reviewed.

Detailed description: Hypothesis / aims of study Involuntary urine leakage has been observed during stress urethral pressure measurement in women with urodynamic stress incontinence (USI). However, to our knowledge, its clinical significance and urodynamic association remained undetermined. Therefore, the objective of this study is to elucidate the above differences between those with versus without involuntary urine leakage during the measurement of stress urethral pressure in women with USI.

Study design, materials and methods Between July 2009 and December 2023, medical records, including urodynamic data, bladder dairy data and questionnaires, including patient perception of bladder condition (PPBC), urgency severity scale (USS), overactive bladder symptom score (OABSS), urogenital distress inventory (UDI-6), incontinence impact questionnaire (IIQ-7), and King's Health Questionnaire (KHQ), of all women with USI were reviewed to see if there was any involuntary leakage of urine during stress urethral pressure measurement.

STATA software was used for statistical analysis. The Wilcoxon rank sum test or the Chi-square test were used for statistical analysis, as appropriate. A p \< 0.05 was considered statistically significant. Linear regression analysis was also performed with an adjustment of overactive bladder syndrome (OAB) to elucidate the real clinical and urodynamic associations about the leak during stress urethral pressure measurement.

Eligibility criteria: Inclusion Criteria:

* \>20 y/o
* Women with lower urinary tract symptoms
* Received urodynamic stress incontinence and was diagnosed with urodynamic stress incontinence

Exclusion Criteria:

* Women who are pregnant
* With chronic pelvic inflammatory disease

Primary outcomes:
measure: Urinary incontinence in bladder diary
timeFrame: Between July 2009 and December 2023
Secondary outcomes:
measure: Pad weight
timeFrame: Between July 2009 and December 2023
Other outcomes:
Locations:
city: Taipei
country: Taiwan
facility: National Taiwan University Hospital
Study officials:
affiliation: National Taiwan University Hospital
name: Ho-Hsiung Lin, M.D. Ph.D
role: PRINCIPAL_INVESTIGATOR
References:
citation: Wu PC, Hsiao SM, Lin HH. Prevalence and predictors of nocturnal polyuria in females with overactive bladder syndrome. World J Urol. 2022 Feb;40(2):519-527. doi: 10.1007/s00345-021-03865-5. Epub 2021 Nov 11.
citation: Hsiao SM, Wu PC, Chang TC, Chen CH, Lin HH. Urodynamic and Bladder Diary Factors Predict Overactive Bladder-wet in Women: A Comparison With Overactive Bladder-dry. Int Neurourol J. 2019 Mar;23(1):69-74. doi: 10.5213/inj.1836212.106. Epub 2019 Mar 31.
citation: Hsiao SM, Hsiao CF, Chen CH, Chang TC, Wu WY, Lin HH. Evaluation of bladder diary parameters based on correlation with the volume at strong desire to void in filling cystometry. PLoS One. 2013 Jul 29;8(7):e69946. doi: 10.1371/journal.pone.0069946. Print 2013.
citation: Rosier PFWM, Schaefer W, Lose G, Goldman HB, Guralnick M, Eustice S, Dickinson T, Hashim H. International Continence Society Good Urodynamic Practices and Terms 2016: Urodynamics, uroflowmetry, cystometry, and pressure-flow study. Neurourol Urodyn. 2017 Jun;36(5):1243-1260. doi: 10.1002/nau.23124. Epub 2016 Dec 5.
citation: Haylen BT, de Ridder D, Freeman RM, Swift SE, Berghmans B, Lee J, Monga A, Petri E, Rizk DE, Sand PK, Schaer GN; International Urogynecological Association; International Continence Society. An International Urogynecological Association (IUGA)/International Continence Society (ICS) joint report on the terminology for female pelvic floor dysfunction. Neurourol Urodyn. 2010;29(1):4-20. doi: 10.1002/nau.20798.