title: The clinical significance of bladder speed.
abstract: By calculation of a notional maximum possible flow rate (Qm) from the pressure-flow parameters of clinical urodynamic studies, a variable is obtained which relates to the speed of shortening of the muscle fibres and hence to detrusor contractility. Bladder outlet obstruction causes a reduction in detrusor contractility. After the satisfactory relief of outflow obstruction, the clinical results are related to the degree of recovery of detrusor contractility.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009119:Muscle Contraction; D011468:Prostatectomy; D011470:Prostatic Hyperplasia / Q000150:complications / Q000601:surgery; D012016:Reference Values; D012737:Sex Factors; D013997:Time Factors; D001743:Urinary Bladder / Q000502:physiology / Q000503:physiopathology*; D001748:Urinary Bladder Neck Obstruction / Q000209:etiology / Q000503:physiopathology / Q000601:surgery; D014563:Urodynamics