Related Experiment Video
Updated: Feb 25, 2026

Real-Time Void Spot Assay
Published on: February 10, 2023
Videourodynamic Studies of Women with Voiding Dysfunction.
Sheng-Mou Hsiao1,2,3, Ho-Hsiung Lin1,3, Hann-Chorng Kuo4
1Department of Obstetrics and Gynecology, Far Eastern Memorial Hospital, Banqiao, New Taipei, Taiwan.
This study analyzed videourodynamic findings in women with voiding dysfunction. Key metrics like voiding detrusor pressure and Abrams-Griffiths number help differentiate bladder outlet obstruction subtypes for better management.
Area of Science:
- Urology
- Female Pelvic Medicine
- Diagnostic Imaging
Background:
- Voiding dysfunction significantly impacts women's quality of life.
- Accurate diagnosis of bladder outlet obstruction (BOO) and its subtypes is crucial for effective treatment.
- Videourodynamics offers detailed insights into lower urinary tract function.
Purpose of the Study:
- To present videourodynamic findings in women experiencing voiding dysfunction.
- To identify diagnostic criteria for differentiating various causes of BOO and bladder dysfunction.
- To establish optimal cutoff values for key urodynamic parameters.
Main Methods:
- Retrospective analysis of videourodynamic studies from 1914 women.
- Classification of diagnoses into bladder outlet obstruction (BOO), bladder dysfunction, and normal tracings.
- Receiver operating characteristic (ROC) analysis to determine optimal cutoff values for differentiating conditions.
Main Results:
- Bladder dysfunction (54.8%) and BOO (42.3%) were the most common diagnoses.
- Optimal cutoff values were identified: voiding detrusor pressure (30 cmH2O) for BOO vs. others (ROC 0.78), Abrams-Griffiths number (30) for anatomic vs. functional BOO (ROC 0.66), post-void residual (200 mL) for bladder neck dysfunction (ROC 0.69), and Pdet.Qmax (30 cmH2O) for dysfunctional voiding vs. sphincter relaxation issues (ROC 0.93).
Conclusions:
- Videourodynamic parameters provide valuable information for diagnosing voiding dysfunction in women.
- Established cutoff values can guide the initial management of female BOO.
- Further research can refine these diagnostic criteria for improved patient outcomes.
Related Concept Videos
Urodynamic Studies: Uroflowmetry
Imaging Studies VI: Voiding Cystourethrography and Cystography
Anatomy of the Genitourinary System II: Bladder and Urethra
Urinary Bladder
In males, the bladder is situated in front of the rectum, while in females, it is positioned anterior to the vagina and uterus. The bladder floor contains an inverted triangular area called the trigone, defined by the two ureteric...
Imaging Studies V: Intravenous Urography and Retrograde Pyelography
Imaging Studies I: Kidney, Ureter, and Bladder Studies

