title: Non-invasive diagnosis of bladder instability using the Bladder Instability Discriminant Index (BIDI).
abstract: The purpose of this study was to validate prospectively the BIDI index in the non-invasive diagnosis of bladder instability, as a procedure for clinical evaluation in primary health care of women. 217 patients were studied; 82 with stress incontinence, 39 with urge incontinence and 96 with both symptoms. All patients were studied by specialist physicians, who conducted a clinical evaluation, questionnaire, gynecological and urological examination, stress test, urodynamic assessment and a 7 day frequency/volume study, recording each intake and micturition; data that were used to calculate the BIDI index. The results obtained through the application of the BIDI were compared with the corresponding urodynamic diagnoses, achieving 88% sensitivity and 83% specificity. The use of the BIDI index is suggested as a non-invasive clinical diagnostic method, of low cost and simple performance. It is recommended for treatment control and for taking diagnostic and therapeutic decisions in medical centres lacking proper urodynamic equipment.
authors.affiliation: San Martin School Hospital, Medicine School, University of Buenos Aires.
authors.forename: O
authors.initials: O
authors.lastname: Contreras Ortiz
authors.forename: R J
authors.initials: RJ
authors.lastname: Lombardo
authors.forename: A
authors.initials: A
authors.lastname: Pellicari
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D016002:Discriminant Analysis; D005260:Female; D006801:Humans; D008487:Medical History Taking; D008875:Middle Aged; D014549:Urinary Incontinence / Q000175:diagnosis* / Q000503:physiopathology; D014550:Urinary Incontinence, Stress / Q000175:diagnosis* / Q000503:physiopathology; D014563:Urodynamics / Q000502:physiology*