The pressure (P,)-cross-sectional area (CA) relationship in the resting urethra was examined in 30 females with genuine stress incontinence (GSI). Measurements were performed at the bladder neck, in the high-pressure zone, and in the distal part of the urethra. From the two variables urethral elasta
Mechanical properties of the urethra in healthy female volunteers: Static measurements in the resting urethra
β Scribed by Gunnar Lose
- Publisher
- John Wiley and Sons
- Year
- 1989
- Tongue
- English
- Weight
- 541 KB
- Volume
- 8
- Category
- Article
- ISSN
- 0733-2467
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β¦ Synopsis
A pressurekross-sectional area probe was used for measurement of related values of pressure (Pura) and cross-sectional area (CA) at static circumstances in the resting urethra in 30 healthy female$. Measurements were performed at the bladder neck, in the high-pressure zone and distally in the urethra. From the two variables urethral elastance and hysteresis were calculated.
The mean urethral elastance (i.e., dP,,,/dCA) was found to be of the order of 1 cm H20/rnm2 all along the urethra. No correlation could be established between the elastance and age or parity. The mean hysteresis was of the order of 20-25 crn H20 along the urethra. Urethral hysteresis appeared to be a time-dependent phenomenon.
π SIMILAR VOLUMES
The dynamic urethral pressure response to a simulated urine ingression was studied at the bladder neck, in the high pressure zone. and in the distal urethra in 10 healthy female volunteers. The pressure response was characterised by a steep pressure increase simulataneous with the urethral dilation,