Biomaterial Database

[Infravesical obstruction]. 1993

P Depireux, and J de Leval

Service d'Urologie; Centre Hospitalier Universitaire de Liège, Belgique.

Infravesical obstruction presents clinically in the form of dysuria. Urodynamic studies play an important role to distinguish between a disorder of detrusor contractility and a functional or organic obstruction. The value of uroflowmetry, static and voiding urethral pressure profiles, cystometry and electromyography is discussed. The instantaneous voiding profile appears to be the most useful test: it allows calculation of urethral resistance, which is the ratio between bladder voiding pressure and the square of flow. Bladder neck obstruction is present in more than 80% of cases with a value greater than 0.5. Obstacles are more easily identified clinically in women, but the same tests can be applied with a poorer reliability for urethral resistance.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D001748	Urinary Bladder Neck Obstruction	Blocked urine flow through the bladder neck, the narrow internal urethral opening at the base of the URINARY BLADDER. Narrowing or strictures of the URETHRA can be congenital or acquired. It is often observed in males with enlarged PROSTATE glands.	Bladder Neck Obstruction,Bladder Outlet Obstruction
D004576	Electromyography	Recording of the changes in electric potential of muscle by means of surface or needle electrodes.	Electromyogram,Surface Electromyography,Electromyograms,Electromyographies,Electromyographies, Surface,Electromyography, Surface,Surface Electromyographies
D005260	Female		Females
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D014555	Urination Disorders	Abnormalities in the process of URINE voiding, including bladder control, frequency of URINATION, as well as the volume and composition of URINE.	Disorder, Urination,Disorders, Urination,Urination Disorder
D014563	Urodynamics	The mechanical laws of fluid dynamics as they apply to urine transport.	Urodynamic
D015203	Reproducibility of Results	The statistical reproducibility of measurements (often in a clinical context), including the testing of instrumentation or techniques to obtain reproducible results. The concept includes reproducibility of physiological measurements, which may be used to develop rules to assess probability or prognosis, or response to a stimulus; reproducibility of occurrence of a condition; and reproducibility of experimental results.	Reliability and Validity,Reliability of Result,Reproducibility Of Result,Reproducibility of Finding,Validity of Result,Validity of Results,Face Validity,Reliability (Epidemiology),Reliability of Results,Reproducibility of Findings,Test-Retest Reliability,Validity (Epidemiology),Finding Reproducibilities,Finding Reproducibility,Of Result, Reproducibility,Of Results, Reproducibility,Reliabilities, Test-Retest,Reliability, Test-Retest,Result Reliabilities,Result Reliability,Result Validities,Result Validity,Result, Reproducibility Of,Results, Reproducibility Of,Test Retest Reliability,Validity and Reliability,Validity, Face