MEASUREMENT OF TOTAL URETHRAL COMPLIANCE IN FEMALES WITH STRESS-INCONTINENCE (REPRINTED FROM PROCEEDINGS OF THE 14TH ANNUAL INTERNATIONAL-CONFERENCE OF THE IEEE-ENGINEERING-IN-MEDICINE-AND-BIOLOGY-SOCIETY, OCTOBER 29 TO NOVEMBER 1, 1992, PARIS, FRANCE, VOLUME 14, PG 1502-1503, 1992)

Urodynamic evaluation of stress incontinence has failed to result in c onsistent diagnostic parameters. Using retrospective female bladder pr essure and urine flow data, we evaluated two parameters based on a con ductance formula. This formula was derived from fitting a classical fl uid dynamic equation to published data of voiding cystourethography. T he Area Equivalent Factor-female at maximal flow represents maximal ur ethral opening and this value further divided by the pressure is the t otal urethral compliance. A stress incontinent group had a strong tren d toward greater maximal urethral opening and total urethral complianc e than a continent group. These parameters may, therefore, have potent ial in the evaluation and understanding of stress urinary incontinence .