[Contribution of the ambulatory urodynamic monitoring to the study of micturition disorders].

An outpatient urodynamic study allows simultaneous recording of bladder, urethral and abdominal pressures over a long duration with physiological bladder filling and under outpatient conditions. One hundred and eighteen outpatient urodynamic recordings were performed in patients presenting with disturbances of micturition such as urinary incontinence or dysuria. In the group of incontinent patients, the outpatient urodynamic recording was superior to the standard urodynamic assessment for the diagnosis of unstable bladder (p < 0.001). In the group of dysuric patients, the outpatient urodynamic recording allowed a precise evaluation of the detrusor activity and a simplified assessment of micturition. Its use combined with a urecholine test allows analysis of the onset, duration and intensity of action of the drug in comparison with a standard test.