Stop-flow measurement of detrusor contractility in bladder outflow obstruction.
Detrusor contractility was evaluated by measuring the increase in isometric pressure during a stop test in 25 men with benign prostatic hyperplasia. Before transurethral prostatic resection (TUR), a low pressure increase (delta P det iso) was associated with a large volume of residual urine. After TUR both the speed and the amplitude of isometric detrusor contractions during the stop test increased. A pre-operative low detrusor pressure increase was correlated with a great improvement in flow rate after TUR. The value of the stop-flow test was limited, however, since improvement in other urodynamic parameters could not be predicted.
Kinn
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AC
Department of Urology, Karolinska Hospital, Stockholm, Sweden.
D000368:Aged; D000369:Aged, 80 and over; D006801:Humans; D008297:Male; D008875:Middle Aged; D009119:Muscle Contraction; D011184:Postoperative Period; D011312:Pressure; D011468:Prostatectomy; D011470:Prostatic Hyperplasia / Q000150:complications / Q000601:surgery; D001743:Urinary Bladder / Q000503:physiopathology*; D001748:Urinary Bladder Neck Obstruction / Q000209:etiology / Q000503:physiopathology* / Q000601:surgery