Objective: This study aims to compare the effects of vaginal estrogen and hyaluronic acid on vulvovaginal atrophy.
Patients and methods: This randomized controlled study included a total of 300 patients, with 150 patients in each group (Group E and Group H). The VHI score was determined based on a pre-treatment evaluation conducted by a gynecologist. After one month of receiving vaginal estrogen in Group E and vaginal hyaluronic acid in Group H, the patients were re-evaluated by their physicians.
Results: A statistically significant difference was found between the pre- and post-treatment VHI scores in Group E and Group H (p = 0.000; p = 0.000). No statistical difference was found between Group E and Group H in terms of treatment efficacy (p = 0.712). The pre- and post-treatment complaints of dryness, itching, dyspareunia, burning, and dysuria were found to be statistically significant in Group E and Group H (p = 0.000; p = 0.000; p = 0.000; p = 0.000; p = 0.000 in Group E, respectively) (p = 0.000; p = 0.000; p = 0.000; p = 0.000; p = 0.000 in Group H, respectively). No statistical difference was observed regarding dyspareunia, dysuria, and burning complaints (p = 0.632; p = 0.106; p = 0.128, respectively). However, hyaluronic acid was found to be significantly more effective for itching complaints (p = 0.002), while estrogen was found to be significantly more effective for dryness complaints (p = 0.012).
Conclusions: Hyaluronic acid and estrogen were equally effective in vaginal treatment. Hyaluronic acid may be preferred for patients in whom hormonal therapy is contraindicated or for those who prefer non-hormonal therapy.