Use of free uroflowmetry vs pressure-flow studies in the diagnosis of overactive bladder syndrome in females

The decrease in the urethral lumen due to the presence of a transurethral catheter in patients with OAB, in contrast to women with SUI and MUI, was not found to influence FI calculated using free uroflowmetry or PFS. FI may serve as an important objective diagnostic tool for OAB, but only when calculated from free uroflowmetry parameters when assessing patients with LUTS.