The role of intrinsic sphincteric deficiency diagnosis in the era of midurethral sling.

The midurethral sling has gained popularity and is the most commonly used treatment of women with stress urinary incontinence (SUI). Whether intrinsic sphincteric deficiency (ISD) still should be used in the preoperative evaluation of patients with SUI and whether it should be considered as a predictor of success in patients undergoing a midurethral sling procedure and as a guide in the choice of surgical approach (retropubic vs transobturator) remain controversial. This article reviews and discusses the definitions of ISD and the latest research into the role of ISD determination in the era of the midurethral sling.