Vaginal dilators for prevention of dyspareunia after prolapse surgery: a randomized controlled trial

Abstract

Objective: To compare rates of de novo dyspareunia in women with and without vaginal dilator use after posterior colporrhaphy.

Methods: This randomized controlled trial included sexually active patients with prolapse and no bothersome baseline dyspareunia undergoing posterior colporrhaphy. Patients were randomized to daily vaginal dilator use from postoperative weeks 4 through 8 or to no dilator use. Pelvic organ prolapse quantification examination and vaginal caliber were measured at baseline, 8 weeks, and 6 months postoperatively. Sexual function was evaluated at baseline, 3 months, and 6 months postoperatively using the Pelvic Organ Prolapse/Urinary Incontinence Sexual Function Questionnaire-12. Participants completed a Patient Global Impression of Improvement at 3 months and 6 months postoperatively.

Results: Sixty patients were randomized: 30 in the dilator group and 30 in the control group. There were no differences in baseline characteristics and postoperative vaginal caliber between groups. At 3 months, 9.5% of patients reported de novo dyspareunia in the dilator group compared with 19.2% of control patients (P=.44). At 6 months, 12.5% of patients in the dilator group reported de novo dyspareunia compared with 3.8% of control patients (P=.34). There was a 13% loss-to-follow-up rate, and therefore we did not meet appropriate power to detect a difference. There were no differences in overall sexual function or Patient Global Impression of Improvement scores between groups at 3 months and 6 months.

Conclusion: There were no significant differences in de novo dyspareunia rates, overall postoperative sexual function scores, or global improvement scores between those using vaginal dilators compared with control patients.

Trial registration: ClinicalTrials.gov NCT01299363.