Efficacy of Erbium:YAG laser treatment compared to topical estriol treatment for symptoms of genitourinary syndrome of menopause

Adrian Gaspar, Hugo Brandi, Valentin Gomez, Daniel Luque, Adrian Gaspar, Hugo Brandi, Valentin Gomez, Daniel Luque

Abstract

Objectives: The objective of this prospective comparative cohort study was to establish the effectiveness and safety of Erbium:YAG (Er:YAG) laser treatment for genitourinary syndrome of menopause and to compare it with an established topical estriol treatment.

Methods: Fifty patients with genitourinary syndrome of menopause were divided into two groups. The estriol group received a treatment of 0.5 mg estriol ovules for 8 weeks and the laser group was first treated for 2 weeks with 0.5 mg estriol ovules 3 times per week to hydrate the mucosa and then received three sessions with 2,940 nm Er:YAG laser in non-ablative mode. Biopsies were taken before and at 1, 3, 6, and 12 months post-treatment. Maturation index, maturation value and pH where recorded up to 12-months post-treatment, while the VAS analysis of symptoms was recorded up to 18 months post-treatment.

Results: Statistically significant (P < 0.05), reduction of all assessed symptoms was observed in the laser group at all follow-ups up to 18 months post-treatment. Significant improvement in maturation value and a decrease of pH in the laser group was detected up to 12 months after treatment. The improvement in all endpoints was more pronounced and longer lasting in the laser group. Histological examination showed changes in the tropism of the vaginal mucosa and also angiogenesis, congestion, and restructuring of the lamina propria in the laser group. Side effects were minimal and of transient nature in both groups, affecting 4% of patients in the laser group and 12% of patients in the estriol group.

Conclusions: Our results show that Er:YAG laser treatment successfully relieves symptoms of genitourinary syndrome of menopause and that the results are more pronounced and longer lasting compared to topical estriol treatment. Lasers Surg. Med. 49:160-168, 2017. © 2016 The Authors. Lasers in Surgery and Medicine Published by Wiley Periodicals, Inc.

Keywords: Erbium:YAG laser; genitourinary syndrome of menopause; topical estriol; vaginal atrophy.

© 2016 The Authors. Lasers in Surgery and Medicine Published by Wiley Periodicals, Inc.

Figures

Figure 1
Figure 1
Assessment of the following symptoms of GSM: (a) dyspareunia, (b) irritation, (c) dryness, (d) chronic leukorrhea—on a 0–3 VAS scale in the laser group and in the estriol group before the treatment and after 1, 3, 6,12, and 18 months. *Indicates level of statistically significant improvement—***P < 0.001; **P < 0.01; *P < 0.05; x denotes statistically significant worsening ‐xx ‐ P < 0.01; x ‐ P <0.05.
Figure 2
Figure 2
(a) Maturation value before and at 1, 3, 6, and 12 months post treatment, and (b) pH before and at 3 and 12 months follow‐up. *Indicates level of statistical significance—***P < 0.001; **P < 0.01; *P < 0.05.
Figure 3
Figure 3
Histological examination (hematoxylin‐eosin staining) of the vaginal mucosa of patients with GSM symptoms before and after Er:YAG laser treatment. Panel I shows images before treatment (a) and 1 month after laser treatment (b). New vessel formation can be observed (2). Panel II shows images before treatment (c) and 3, 6, and 12 months after laser treatment (df, respectively). Increased cellularity and neo‐angiogenesis can be observed (2) after Er:YAG laser treatment, increase in papillomatosis (1), basal cells hyperplasia, and a complete restorative reaction at the level of the lamina propria. Panel III shows images at 6 months after laser treatment, displaying increased angiogenesis (g) and restorative reaction at the level of the extracellular matrix (h and i). Photomicrographs at 4× (ag) and 10× (h and i) magnification are presented.

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Source: PubMed

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