Clinical trial NCT04184752: Prevalence of Detrusor Underactivity and Bladder Outlet Obstruction in Female Without Cystocele
Official title: Urodynamically Age-specific Prevalence of Detrusor Underactivity and Bladder Outlet Obstruction in Female Voiding Dysfunction Without Cystocele
Study type: OBSERVATIONAL
Overall status: COMPLETED
Conditions: Voiding Disorders
Keywords: Bladder outlet obstruction
Detrusor underactivity
Voiding dysfunction
Lead sponsor: National Taiwan University Hospital
Sponsor class: OTHER
First posted: 2019-12-04
Enrollment: 602
Sex: FEMALE
Minimum age (years): 20
Maximum age (years): 85
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Observational model: CASE_ONLY
Time perspective: RETROSPECTIVE
Sampling method: NON_PROBABILITY_SAMPLE
Study population: All women with symptoms of voiding dysfunction and without cystocele who visited the urogynecological department of a medical center for urodynamic evaluation were reviewed.

Brief summary: Women with symptoms of voiding dysfunction may be associated with detrusor underactivity (DU) or bladder outlet obstruction (BOO). The treatment strategies are different between DU and BOO. In general, urodynamic/videourodynamic studies are important for differential diagnosis. However, urodynamic/videourodynamic studies are invasive. The investigators are interested in whether there were specific symptoms or measurements that can be used for initial differential diagnosis between DU and BOO. Thus, the aim of this study was to elucidate the prevalence of DU and BOO in each age group and elucidate the clinical and urodynamic differences between the DU, BOO and non-DU/BOO groups.

Detailed description: Between April 1996 and September 2018, all women with symptoms of voiding dysfunction who visited the urogynecological department of a medical center for urodynamic evaluation were reviewed. Those women who have no complete data of maximum flow rate (Qmax), voided volume, post-void residual volume (PVR) and detrusor pressure at a maximum flow rate (PdetQmax) were excluded from this study. Besides, women with cystocele were also excluded. The DU was defined when the PdetQmax was less than 20 cmH2O, the Qmax was less than 15 mL/s, and the bladder voiding efficiency (BVE) was less than 90 %. The BOO was defined when the PdetQmax was not less than 40 cmH2O, and the Qmax was less than 12 mL/s. BVE = voided volume / (voided volume+ PVR) x 100%. Those women without DU or BOO were allocated to the non-DU/BOO group.

STATA software was used for statistical analysis. ANOVA test with Bonferroni correction or chi-square test was used for statistical analysis as appropriate. Linear regression analysis with age adjustment was used to assess the adjusted effect of variables. P \< 0.05 was considered as statistical significant.

Eligibility criteria: Inclusion Criteria:

* Women with symptoms of voiding dysfunction.

Exclusion Criteria:

* Cystocele
* Those women who have no complete data of maximum flow rate (Qmax), voided volume, post void residual volume (PVR) and detrusor pressure at maximum flow rate (PdetQmax) were excluded from this study.

Primary outcomes:
measure: Number of Participants with Detrusor underactivity or Bladder outlet obstruction
timeFrame: Between April 1996 and September 2018
Secondary outcomes:
Other outcomes:
Locations:
city: Taipei
country: Taiwan
facility: National Taiwan University Hospital
Study officials:
affiliation: National Taiwan University Hospital
name: Ho-Hsiung Lin, PhD
role: PRINCIPAL_INVESTIGATOR
References:
citation: Haylen BT, de Ridder D, Freeman RM, Swift SE, Berghmans B, Lee J, Monga A, Petri E, Rizk DE, Sand PK, Schaer GN. An International Urogynecological Association (IUGA)/International Continence Society (ICS) joint report on the terminology for female pelvic floor dysfunction. Int Urogynecol J. 2010 Jan;21(1):5-26. doi: 10.1007/s00192-009-0976-9. Epub 2009 Nov 25.
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