Comprehensive assessment of lower urinary tract function
- Flow cystometry
- Urethral pressure profilometry
When is urodynamic testing performed?
- Diagnosis of urinary incontinence – testing enables proper qualification for procedure
- Diagnosis of extraordinary daytime urinary frequency, urinary urgency, and urinary retention – required to obtain drug reimbursement from NFZ (National Health Fund)
- Persistent urinary incontinence after surgical treatment, including mid-urethral tape procedures (TOT, TVT, mini-sling), or after the removal of the reproductive organs (uterus) in women
- Prior to removal of adenoma of the prostate in men
How to prepare for testing:
1) The evening before the test, or the morning of the test, stool should be passed (glycerine suppositories may be used).
2) The patient must come to the test with a full bladder.
3) The patient should provide information about their history of procedures and current medication.
It is recommended to take a chemical antimicrobial agent or antibiotic to prevent infection of the urinary tract.
Test duration: 40-60 min.
Uroflowmetry – measurement of the rate of urine flow during voluntary voiding
- Measurement of the volume of urine passed
- Maximum and average urine flow rate
- Voiding duration
- After voiding – assessment of residual urine volume
Flow cystometry – simultaneous registration of intravesical and intra-abdominal pressure
FS/FD (first sensation/desire to void) approx. 150ml
NS/ND (normal sensation/desire to void) approx. 280ml
SD (strong desire to void) approx. 340ml
MBC (maximum bladder capacity) 350-500ml
VLPP (Valsalva leak point pressure)
>90 cm H2O type II SUI
<60 cm H2O type III SUI
60< VLPP >90 – combination type II and III SUI
Urethral pressure profilometry – measurement of pressure within the urethra at successive points along its length
- Provides information on the urethral sphincter function, including MUCP (Maximum Urethral Closure Pressure)
urethral pressure profilometry results