Provisional study to quantify and compare parameters of urine leakage in stress and instability incontinence

Apart from measuring the total volume of urine leaked over prescribed periods of time, the characteristics of urine losses have been ignored. In this provisional study, conducted on 217 female patients, parameters such as the number and volume of the individual losses contributing to the total have been measured and related to the simultaneous pressure changes recorded during natural-filling urodynamic investigations. Each episode of incontinence can thus be attributed unequivocally to stress or to detrusor instability. This enables the quantified parameters of urine losses of both groups to be compared. The results indicate that interesting differences exist between the two types of incontinence, the recognition of which might be valuable for diagnostic purposes and for the design, development and suggested usage of incontinence aids.