[Management of vulvovaginal atrophy: Physical therapies. Postmenopausal women management: CNGOF and GEMVi clinical practice guidelines]

[Photobiomodulation and vulvovaginal disorders after anticancer treatments]

Anticancer treatments induce vulvovaginal complications that alter the quality of life and sexuality of patients. New technologies, such as photobiomodulation, could address this problem, for which few effective therapeutic solutions exist. The objective of this study was to describe the characteristics of patients seeking treatment and to observe the effects of photobiomodulation. This is a prospective cohort of patients treated for cancer, in failure of first-line medical treatment, managed at the University Hospital of Nîmes. The history, symptoms and impact of the disorders on their quality of life were collected. At follow-up, improvement was assessed using the PGI-I and FSFI questionnaires. Twenty-eight patients were treated. They were all menopausal, half of them after anticancer treatments [chemotherapy (78%), radiotherapy (36%), hormone therapy (36%)]. The main symptom reported was vaginal dryness (72%). Seventy-one percent of patients (n=20) felt that their daily life was affected≥8/10. All patients had sexual dysfunction. Twenty-two patients received at least 6 sessions of photobiomodulation. Seventy-two percent (n=18) of patients felt better or much better after treatment (PGI-I≤2). The median improvement estimated by the patients was 65% (Q1=50%; Q3=72.5%). There was also a significant clinical improvement. No serious adverse events were reported. Due to the small number of patients in a heterogeneous population with no control group, we cannot extrapolate our results. However, the objective was to assess the status of these pathologies and the contribution of photobiomodulation in patients who have failed first-line treatment; and these results are encouraging.

Vaginal collagen I and III changes after carbon dioxide laser application in postmenopausal women with the genitourinary syndrome: a pilot study

OBJECTIVE

The aim of the study was to evaluate the clinical response and collagen remodeling in the vaginal wall after three sessions of carbon dioxide (CO₂) laser application.

METHODS

Fourteen postmenopausal women with vulvovaginal atrophy, aged 45-65 years and sexually active, were evaluated with clinical questionnaires, gynecological examinations and histological techniques before and after 20 weeks of treatment (ClinicalTrials.gov NCT03939078). Treatment consisted of 3-monthly sessions of the CO₂ laser. Clinical questionnaires included the Vaginal Health Index, the Female Sexual Function Index and the International Consultation on Incontinence Questionnaires Short Form. Biopsies were taken from the lateral vaginal wall at week 0 (left wall) and week 20 (right wall). Tissue samples were stained with hematoxylin and eosin, Periodic Acid-Schiff, Picrosirius Red Stain and Orcein dyes. Immunohistochemical study was used to quantify collagens I and III in the samples.

RESULTS

The mean age was 54.4 ± 4.5 years, and the average time of amenorrhea was 7.6 ± 5.1 years. The Female Sexual Function Index and the Vaginal Health Index Score values increased while the International Consultation on Incontinence Questionnaire Short Form score decreased after the programmed treatment. There was no significant change in vaginal pH. Histological studies showed increases in the total and superficial epithelial cell layers, and type III collagen fibers (from 10.86 ± 7.66 to 16.87 ± 3.96, p < 0.05), and immunohistochemical studies confirmed the significant increase in collagen III.

CONCLUSION

Histological findings revealed epithelial atrophy reversal and collagen remodeling of the vaginal wall. Immunohistochemical analysis showed an increase in collagen type III fibers.