Biomaterial Database

Hydrodynamics of micturition in stress-incontinent women. Comparisons of pressure and flow at different micturition volumes in stress-incontinent and continent women. 1982

B Sjöberg, and C R Nyman

The urethral flow, resistance and closure pressure and bladder pressures in 19 stress-incontinent but otherwise healthy women were compared with the same parameters in 19 healthy, continent women. The micturition studies were performed at three predetermined levels of bladder filling. The urethral closure pressure, the premicturition intravesical pressure and detrusor pressure at micturition were significantly lower in the stress-incontinent women than in the continent group. The intravesical opening pressure showed no intergroup difference. The urethral and bladder pressure measurements in the incontinent women indicated musculo-elastic tissue with greater compliance and less contractility than in normal women.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D011312	Pressure	A type of stress exerted uniformly in all directions. Its measure is the force exerted per unit area. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)	Pressures
D001743	Urinary Bladder	A musculomembranous sac along the URINARY TRACT. URINE flows from the KIDNEYS into the bladder via the ureters (URETER), and is held there until URINATION.	Bladder,Bladder Detrusor Muscle,Detrusor Urinae,Bladder Detrusor Muscles,Bladder, Urinary,Detrusor Muscle, Bladder,Detrusor Muscles, Bladder
D005260	Female		Females
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328	Adult	A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available.	Adults
D014521	Urethra	A tube that transports URINE from the URINARY BLADDER to the outside of the body in both the sexes. It also has a reproductive function in the male by providing a passage for SPERM.	External Urethral Sphincter,External Urinary Sphincter,Internal Urethral Sphincter,Internal Urinary Sphincter,Internal Vesical Sphincter,Urethral Sphincters,External Urethral Sphincters,External Urinary Sphincters,Internal Urethral Sphincters,Internal Urinary Sphincters,Internal Vesical Sphincters,Sphincter, External Urethral,Sphincter, External Urinary,Sphincter, Internal Urethral,Sphincter, Internal Urinary,Sphincter, Internal Vesical,Sphincter, Urethral,Urethral Sphincter,Urethral Sphincter, External,Urethras,Urinary Sphincter, External,Urinary Sphincter, Internal,Vesical Sphincter, Internal
D014550	Urinary Incontinence, Stress	Involuntary discharge of URINE as a result of physical activities that increase abdominal pressure on the URINARY BLADDER without detrusor contraction or overdistended bladder. The subtypes are classified by the degree of leakage, descent and opening of the bladder neck and URETHRA without bladder contraction, and sphincter deficiency.	Urinary Stress Incontinence,Incontinence, Urinary Stress,Stress Incontinence, Urinary
D014554	Urination	Discharge of URINE, liquid waste processed by the KIDNEY, from the body.	Micturition