Five-year surgical outcomes of transvaginal apical approaches in women with advanced pelvic organ prolapse.

Abstract

In women with advanced prolapse, differences in vaginal apex anchoring sites may impact surgical outcomes over time. The primary aim was to compare 5-year surgical outcomes of uterosacral ligament suspension (ULS) versus sacrospinous ligament fixation (SSLF) in women with advanced (stage III-IV) prolapse. A secondary analysis was conducted in a subset of women with advanced prolapse from a multicenter randomized trial comparing ULS versus SSLF and its extended follow-up, using publicly accessible de-identified datasets. The primary outcome was time to failure, defined as any one of (1) apical descent > 1/3 into the vaginal canal or anterior/posterior compartment beyond the hymen, (2) bothersome vaginal bulge symptoms, or (3) re-treatment. Secondary outcomes include symptom severity measured by the Pelvic Organ Prolapse Distress Inventory (POPDI) and adverse events. Of 285 women, 90/147 (61.2%) in ULS and 88/138 (63.8%) in SSLF had advanced prolapse. Baseline characteristics did not differ between groups except for median-vaginal deliveries (3.0 [2.0, 5.0] versus 3.0 [2.0, 4.0], p < 0.01). The median time to failure was 1.7years ULS versus 2.0years SSLF (p = 0.42). Surgical failure increased over time in both groups with no intergroup difference; by year 5, the estimated failure rate was 67.7% ULS versus 71.5% SSLF (adjusted difference -3.8; 95%CI [-21.9, 14.2]). No differences were noted in individual failure components (p > 0.05). POPDI scores improved over 5years without intergroup difference (ULS -68.0 ± 61.1 versus SSLF -69.9 ± 60.3, adjusted difference -0.1 [-20.0, 19.9]). No difference in adverse events were observed (p > 0.05). In women with advanced prolapse, surgical failure, symptom severity, and adverse events did not differ between ULS and SSLF over 5years.