2021 Update on female sexual health

The approach to diagnosis and treatment of female sexual function continues to be a challenge for women’s health professionals. The search for a female “little blue pill” remains elusive as researchers struggle to understand the mechanisms that underlie the complex aspects of female sexual health. This Update will review the recent literature on the use of fractional CO2 laser for treatment of female sexual dysfunction and vulvovaginal symptoms. Bottom line: While the quality of the studies is poor overall, fractional CO2 laser treatment seems to temporarily improve symptoms of genitourinary syndrome of menopause (GSM). The duration of response, cost, and the overall long-term impact on sexual health remain in question.

A retrospective look at CO2 laser and postmenopausal GSM

Filippini M, Luvero D, Salvatore S, et al. Efficacy of fractional CO2 laser treatment in postmenopausal women with genitourinary syndrome: a multicenter study. Menopause. 2019;27:43-49. doi: 10.1097/GME. 0000000000001428.

Researchers conducted a retrospective, multicenter study of postmenopausal women with at least one symptom of GSM, including itching, burning, dyspareunia with penetration, and dryness.

Study details

A total of 171 of the 645 women (26.5%) were oncology patients. Women were excluded from analysis if they used any form of topical therapy within 15 days; had prolapse stage 2 or greater; or had any infection, abscess, or anatomical deformity precluding treatment with the laser.

Patients underwent gynecologic examination and were given a questionnaire to assess vulvovaginal symptoms. Exams occurred monthly during treatment (average, 6.5 months), at 6- and 12-months posttreatment, and then annually. No topical therapy was advised during or after treatment.

Patients received either 3 or 4 fractional CO2 laser treatments to the vulva and/or vagina depending on symptom location and type. Higher power settings of the same laser were used to treat vaginal symptoms (40W; 1,000 microseconds) versus vulvar symptoms (25W; 500 microseconds). Treatment sessions were 5 to 6 minutes. The study authors used a visual analog rating scale (VAS) for “atrophy and related symptoms,” tested vaginal pH, and completed the Vaginal Health Index Score. VAS scores were obtained from the patients prior to the initial laser intervention and 1 month after the final treatment.

Results

There were statistically significant improvements in dryness, vaginal orifice pain, dyspareunia, itching, and burning for both the 3-treatment and 4-treatment cohorts. The delta of improvement was then compared for the 2 subgroups; curiously, there was greater improvement of symptoms such as dryness (65% vs 61%), itching (78% vs 72%), burning (72% vs 67%), and vaginal orifice pain (67% vs 60%) in the group that received 3 cycles than in the group that received 4 cycles.

With regard to vaginal pH improvement, the 4-cycle group performed better than the 3-cycle group (1% improvement in the 4-cycle group vs 6% in the 3-cycle group). Although vaginal pH reduction was somewhat better in the group that received 4 treatments, and the pre versus posttreatment percentages were statistically significantly different, the clinical significance of a pH difference between 5.72 and 5.53 is questionable, especially since there was a greater difference in baseline pH between the two cohorts (6.08 in the 4-cycle group vs 5.59 in the 3-cycle group).

There were no reported adverse events related to the fractional laser treatments, and 6% of the patients underwent additional laser treatments during the followup timeframe of 8 to 20 months.

Continue to: Randomized data on CO2 laser vs Kegels for sexual dysfunction...