Efficacy of the new adjustable I-stop-mini sling system in women with stress urinary incontinence and intrinsic sphincter deficiency: A retrospective cohort study.

Abstract

We aimed to evaluate the efficacy, surgical outcomes, and adverse events of the adjustable midurethral sling I-stop-mini in women with intrinsic sphincter deficiency (ISD)-type stress urinary incontinence. We compared this new sling system with the Obtryx transobturator midurethral sling system. This retrospective cohort study was conducted at a single center from June 2017 to December 2020. A total of 141 women who underwent placement of an I-stop-mini or Obtryx and were followed up for at least 1year were enrolled. ISD was defined as a Valsalva leak point pressure of ≤60 cmH2 O or a maximal urethral closure pressure of ≤20 cmH2 O. Student t test was used to compare continuous variables, and chi-square test was used to compare the distribution of categorical data. In terms of objective success, I-stop-mini and Obtryx showed no significant differences in the postoperative 1-month, 6-month, and 12-month. The two devices showed similar effectiveness regardless of the ISD definition. The I-stop-mini group had a significantly shorter operative time, whereas the adverse event rates were similar. The subjective cure rate, objective success, and adverse event rate did not differ in the two devices. I-stop-mini had a significantly shorter operative time.