E-PACT: EXTENSION TRIAL OF PERMANENT VERSUS DELAYED-ABSORBABLE MONOFILAMENT SUTURE FOR VAGINAL GRAFT ATTACHMENT DURING MINIMALLYINVASIVE TOTAL HYSTERECTOMYAND SACROCOLPOPEXY

ABSTRACT

Introduction: We previously reported a 6.1% rate of mesh/permanent suture exposure at 1 year after minimally-invasive total hysterectomy and sacrocolpopexy (TLH + SCP) with a light-weight polypropylene mesh. Vaginal mesh exposures may increase over time. Objective: The goal of this extension study was to evaluate total and incident mesh/permanent suture exposure rates at least 2 years after surgery. Our secondary aims were to evaluate surgical success and late adverse events. Methods: This extension study included women previously enrolled in the multicenter randomized trial of permanent (2-0 GoreTex) vs delayed-absorbable (2-0 PDS) suture with Upsylon™ mesh during TLH + SCP for > stage II prolapse (POP), for follow-up at least 24 months after surgery. Due to COVID-19, women were given the option of an in-person (symptoms + exam) or telephone visit (symptoms only). The primary outcome was total and incident permanent suture or mesh exposure, or symptoms suggestive of mesh exposure in women without a pelvic examination (vaginal bleeding, bothersome discharge, partner feeling mesh). Women who did not enter the extension trial but were confirmed to have mesh exposure at 1 year were carried forward as a mesh exposure. Secondary outcomes were 1) Surgical success, which was defined as no subjective bulge on PFDI questionnaire, no prolapse beyond the hymen, and no POP retreatment and 2) Adverse events, which were classified according to Dindo grading scale. Results: 182/200 previously randomized participants were eligible for inclusion, of which 106 (58%) women (78 in-person and 28 via questionnaire only) agreed to the extension study. Demographic characteristics are presented in Table 1. At a mean of 3.9 years post-surgery, the rate of mesh/suture exposure was 7.7% (14/182) 5 in-person,1 in the questionnaire only group and 8 cases carried forward from 1-year follow-up. Only 2 were incident cases reported after 1-year follow-up. There were 2 cases of suture exposure in the original cohort at 1 year, and 0 suture exposures in the current group, for a carry forward rate of 1.1% (2/182). There was no significant difference in mean age or follow-up time for women with and without an exam. None reported vaginal bleeding/discharge, dyspareunia, or penile dyspareunia. Mesh/suture exposures were managed as follows 4 (66.7%) vaginal estrogen, 2 (33.3%) office trimming and 1 (16.7%) vaginal mesh excision surgery. For women without a study visit, there was one reported mesh exposure which was treated with office removal. Surgical success was 93/ 106 (87.7%) 13/94 (13.8%) failed by bulge symptoms, 2/78 (2.6%) by prolapse beyond hymen, 1/85 (1.2%) by retreatment with pessary, and 0 retreatment with surgery. There were 34 (32%) subjects who reported an adverse event. The most common were vaginal atrophy (16), pelvic or vaginal pain (7), dyspareunia (5), UTI (3), vaginal bleeding (3), and vaginal discharge (3). There were no serious adverse events. Conclusions: The rate of incident mesh exposure between 1 and 3.9 years postsurgery was low, success rates remained high, and there were no delayed serious adverse events after TLH + SCP with lightweight polypropylene mesh (Table Presented).