The evidence behind the use of LASER for genitourinary syndrome of menopause, vulvovaginal atrophy, urinary incontinence and lichen sclerosus: A state-of-the-art review

Lasers in Gynecology

The first published reports on the use of laser for cervical pathology date back to 1973. Technical advancements in flexible and rigid laser fibers revolutionized video laser laparoscopy in the 1990s. Fractionated lasers have been used to treat vulvovaginal symptoms associated with genitourinary syndrome of menopause, lichen sclerosus, and urinary incontinence. Review of available data suggests that fractionated lasers can improve both subjective and objective signs of vaginal atrophy and lichen sclerosus, but the evidence is weak because most of the trials are underpowered, are at risk for bias, and lack long-term follow-up. There is no strong evidence to support fractionated laser therapy for urinary incontinence or low-level laser therapy for chronic pelvic pain. Although short-term, single-arm trials suggest benefit of fractionated laser therapy for genitourinary syndrome of menopause, lichen sclerosus, and urinary incontinence, additional adequately powered, prospective, randomized, and longer-term comparative trials are needed before lasers can be recommended for these specific conditions. The purpose of this Clinical Expert Series is to review basic laser biophysics and the mechanism of action for modern fractionated lasers as relevant to the gynecologist. We also summarize safety and effectiveness data for lasers used for some of the most commonly studied gynecologic conditions: the vulvovaginal atrophy component of genitourinary syndrome of menopause, lichen sclerosus, and urinary incontinence.

Should I stay for local hormone therapy or should I go for radiofrequency to treat vulvovaginal atrophy? A patient preference trial

OBJECTIVE

To compare patient satisfaction rate in postmenopausal women who chose dynamic quadripolar radiofrequency or topical estrogens as their preferred treatment for genitourinary syndrome of menopause.

METHODS

Patients were divided into two groups according to their preference: one was treated with estrogen therapy (ET) and the other with dynamic quadripolar radiofrequency treatment (RF). All patients included fulfilled a series of validated questionnaires, at baseline and at the 6-mo follow-up, in order to evaluate the discomfort degree associated with the presence of vulvovaginal atrophy and the impact of the reported symptoms on QoL and sexuality.

RESULTS

After propensity score matching, the proportion of women considering themselves satisfied with their genital health conditions was extremely small at study entry (5.2% of the RF group and 6.9% of the ET group), while at a 6-mo follow-up, it increased to 46.7% and 46.6%, respectively. No statistically significant between-group differences were found regarding mean numerical rating scale scores for dryness and dyspareunia at follow-up (5.6 ± 2.6 vs 5.3 ± 2.3, P = 0.5; and 2.9 ± 2.5 vs 3.0 ± 2.7, P = 0.46). At 6-mo follow-up, we observed no statistically significant differences between the two groups regarding the other items evaluated. RF treatment was overall well tolerated.

CONCLUSION

The use of quadripolar radiofrequency devices seems effective, but it is not associated with better clinical outcomes compared with topical hormone treatment, which is a substantially cheaper and more convenient treatment for genitourinary syndrome of menopause. Therefore, we suggest limiting the use of dynamic quadripolar radiofrequency selectively when topical estrogens are not effective, not tolerated, or contraindicated.

Beyond the discomfort: understanding and managing sexual pain in women, a comprehensive case-based discussion

INTRODUCTION

Sexual pain has a profound impact on individuals, regardless of their sexual orientation or gender identity, and affects women more often than men. It adversely affects both sexual function and interpersonal relationships. Despite its prevalence, sexual pain in women often remains unaddressed and untreated. Various underlying causes contribute to sexual pain, sometimes involving multiple factors. We explore treatment options and offer clinical insights into the evaluation and management of 4 common conditions which cause sexual pain in women. In this article, we use the term "women" to indicate cisgender women.

OBJECTIVES

Our aim is to highlight the most common clinical scenarios of sexual pain and provide comprehensive discussions on each, to improve patient care and outcomes in the management of sexual pain.

METHODS

We conducted a comprehensive review of literature and clinical cases to explore the various causes and management strategies for sexual pain in women. We systematically searched databases such as PubMed, Google Scholar, and relevant medical journals. We included peer-reviewed articles, case studies, and clinical trials published between 2000 and 2023. Additionally, we analyzed real-life cases from our clinical practice at our academic institution.

RESULTS

Our review identified various factors contributing to sexual pain in women, ranging from hormonal imbalances to neuroproliferative and inflammatory conditions affecting the genitourinary system. Each case should be approached individually to offer optimal management strategies accordingly.

CONCLUSION

The management of sexual pain in women requires a comprehensive approach that addresses the multifactorial nature of the condition. Patient education and counseling play a crucial role in the management of sexual pain, empowering individuals to advocate for their own health and well-being. The collaboration between healthcare providers and patients can improve our understanding and management of this complex condition.

Safety and Efficacy of Erbium: Yttrium-Aluminum-Garnet Laser Treatment in Chinese Women with Mild-to-Moderate Stress Urinary Incontinence

Background: This study aims to evaluate the safety and efficacy of erbium:yttrium-aluminum-garnet (Er:YAG) laser treatment in female patients with mild-to-moderate stress urinary incontinence (SUI). Methods: From July 2018 to June 2020, 72 female patients with mild-to-moderate SUI were enrolled in this study. A baseline assessment was conducted, which included a 1-hour pad test, the validated International Consultation on Incontinence Questionnaire-Urinary Incontinence Short Form (ICIQ-UI-SF), postvoid residual (PVR) testing, pelvic organ prolapse quantification (POP-Q) testing, and a cough stress test. All patients underwent four sessions of Er:YAG laser treatment using a smooth mode. A reassessment was performed 6 months after treatment to evaluate the safety and efficacy of the Er:YAG laser. Results: All patients completed four clinic visits, with a 1-month interval, and were followed up for a minimum of 6 months. No severe adverse reactions were observed during the treatment process. The 1-hour pad test revealed a significant reduction in urinary leakage from baseline (6.30 ± 1.06 g) to the 6-month follow-up (2.70 ± 0.96 g, p < 0.001), with 34 of 72 (47.22%) patients achieving negative results. The ICIQ-UI-SF score significantly decreased from baseline to 6 months (10.82 ± 1.38 to 2.96 ± 0.52, p < 0.001). PVR experimental results showed a significant decrease in residual urine volume after treatment (103.72 ± 8.61 mL to 43.86 ± 4.92 mL, p < 0.001). At the 6-month follow-up, hematoxylin and eosin staining results demonstrated that Er:YAG laser treatment significantly facilitated an increase in the thickness of squamous epithelial cells. The efficacy of Er:YAG laser treatment for SUI was 77.78% (56/72). Conclusions: Several objective and subjective assessments confirmed the safety and efficacy of vaginal smooth mode Er:YAG laser treatment for mild-to-moderate SUI during the 6-month follow-up period. Nonablative Er:YAG laser in the smooth mode is a viable treatment option for SUI patients.

Nd:YAG/Er:YAG dual laser compared with topical steroid to treat vulvar lichen sclerosus: A randomised controlled trial

OBJECTIVE

To evaluate the efficacy and safety of a novel non-ablative Nd:YAG/Er:YAG dual laser treatment for vulvar lichen sclerosus (LS) in comparison with the recommended first-line therapy with topical steroid.

DESIGN

A randomised investigator-initiated active-controlled trial.

SETTING

Single tertiary referral centre.

POPULATION

Women with vulvar LS.

METHODS

Randomisation (2:1) to Nd:YAG/Er:YAG laser therapy or topical clobetasol proprionate therapy. Four laser treatments at 0, 1, 2 and 4 months or decreasing doses of steroid for 6 months.

MAIN OUTCOME MEASURES

The primary outcome was the change in objective validated clinical LS score in the laser arm between baseline and 6 months. Secondary outcomes were laser tolerability/safety, symptom scores and patient satisfaction.

RESULTS

Sixty-six women were included, 44 in the laser group and 22 in the steroid group. The total LS score decreased by -2.34 ± 1.20 (95% CI -2.71 to -1.98) in women treated with laser compared with a decrease of -0.95 ± 0.90 (95% CI -1.35 to -0.56) in those receiving steroid applications (p < 0.001). Laser treatment was safe and well tolerated. Subjective severity scores (on visual analogue scale) and vulvovaginal symptoms questionnaire scores improved similarly for the laser and steroid arms without significant differences between the two treatments. Patient satisfaction was higher in the laser arm than in the steroid arm (p = 0.035).

CONCLUSIONS

Non-ablative dual Nd:YAG/Er:YAG laser therapy was safe and significantly improved clinical outcome and subjective symptoms at the 6-month follow up. This suggests that laser may be a promising alternative to corticosteroid therapy. However, the authors caution regular follow ups because of the premalignant nature of the disease.

Laser and Pelvic Floor Muscle Training for Urinary Incontinence: A Randomized Clinical Trial

IMPORTANCE

Pelvic floor muscle training (PFMT) is considered the first option as a conservative treatment for female stress urinary incontinence (SUI). However, there is still debate whether energy-based devices are effective for treating SUI.

OBJECTIVE

The objective of this study was to assess whether PFMT and fractional CO2 laser therapy may improve symptoms in women with SUI.

STUDY DESIGN

A parallel, randomized, nonblinded, noninferiority trial included 94 of 144 women 18 years or older with SUI randomized into 2 groups. The CO2 laser group (n = 47) received 3 vaginal applications at monthly intervals. The PFMT group (n = 47) underwent 2 weekly sessions. Primary outcome was the mean difference of International Consultation on Incontinence Questionnaire-Urinary Incontinence Short-Form (ICIQ-UI-SF) total scores between groups after 3 and 6 months. Main secondary outcomes were questionnaires for assessment of pelvic floor symptoms (Pelvic Floor Impact Questionnaire-Short Form 7 [PFIQ-7]), sexual function (Female Sexual Function Index [FSFI]), and improvement after treatment (Patient Global Impression of Improvement [PGI-I]).

RESULTS

A reduction in the ICIQ-UI-SF total score, PFIQ total score, and the Urinary Impact Questionnaire score was perceived between baseline and 3-6 months in both groups. CO2 laser did not reach the noninferiority margin when compared with PFMT in both follow-up periods and analyses. Pelvic floor muscle training has improved the FSFI desire domain between baseline and 3-6 months, whereas CO2 laser improved the FSFI orgasm, pain, and total score after 3 months and FSFI orgasm and total score after 6 months. PGI-I assessment has shown an improvement in both groups.

CONCLUSION

Fractional CO2 laser therapy was noninferior to PFMT after 3-6 months of treatment. Both groups presented a reduction in the ICIQ-UI-SF scores, and both methods could be considered for women with SUI.

Current Treatment of Stress Urinary Incontinence by Bulking Agents and Laser Therapy-An Update

Stress urinary incontinence (SUI) affects around 20% of women. In addition to the established suburethral sling insertion, two less invasive approaches are of interest today: urethral bulking agents and vaginal laser therapy. This review discusses articles through December 2023 identified by a PubMed literature search using the keywords "incontinence" and "bulking" or "laser". Although the two approaches are less effective than sling insertions, there are specific conditions in which one or the other technique is more advantageous. Injecting bulking agents into the urethra only takes some minutes and works without general anesthesia. The method is particularly suited for elderly, frail, or obese patients with multiple comorbidities, but is also applicable for all patients and in combination with other therapies. Generally, the safety profile is good but differs between bulking materials. Two laser types-the Erbium:YAG laser with SMOOTH-mode and the fractional ablative CO2 laser-deliver heat into the tissue to induce tissue tightening and regeneration. Intravaginal laser therapy improves mild to moderate SUI, while studies describe how intraurethral laser therapy is also beneficial for severe SUI. Young women between childbirths, as well as postmenopausal women, may benefit from laser therapy. The method is safe, can be performed on an outpatient basis, and does not require any artificial material.

The Concept behind the Suitability of Menstrual Blood-Derived Stem Cells for the Management of Vaginal Atrophy among BRCA Mutation Carriers after RRSO

Risk-reducing bilateral salpingo-oophorectomy (RRSO) is recommended for breast cancer gene 1 (BRCA1) and 2 (BRCA2) mutation carriers. A major consequence of RRSO is surgical menopause associated with severe menopausal symptoms, mostly genitourinary complaints. Due to the inherent breast cancer risk, estrogen-based therapies are generally avoided in these patients. So far, the non-hormonal approaches available are not efficient to successfully treat the disabling vaginal atrophy-related symptoms. In regenerative medicine, mesenchymal stem cells (MSC) are the most frequently used cell type due to their remarkable and regenerative characteristics. Therapies based on MSC have revealed positive outcomes regarding symptoms and signs associated with vaginal atrophy by promoting angiogenesis, vaginal restoration, and the proliferation of vaginal mucosa cells. Menstrual blood-derived stem cells (MenSC) are a novel source of MSC, with promising therapeutic potential directly linked to their high proliferative rates; low immunogenicity; non-invasive, easy, and periodic acquisition; and almost no associated ethical issues. In this review, we update the current knowledge and research regarding the potential value of previously preserved MenSC in the therapy of vaginal atrophy among BRCA mutation carriers subjected to RRSO.

Maintaining vulvar, vaginal and perineal health: Clinical considerations

Knowledge of female genital anatomy and physiology is often inadequate or incorrect among women. Precise patient-physician conversations can be inhibited by a reluctance or inability to speak accurately about the vulva and vagina, with the terms often being used interchangeably. There is a paucity of scientific evidence and clinical guidelines to support women and physicians in ensuring best practices in feminine hygiene. In this review, the unmet needs in the field are highlighted. Evidence is provided for the complex array of physiological and pathological systems, mechanisms and behaviours that either protect or, if inappropriate, predispose the vulva and vagina to infections, irritation or other conditions. The need for attention to perineal health is recommended, given the interdependence of perineal and vulvar microbiota and the risk of colonic pathogens reaching the vulva and the vagina. Differences in feminine hygiene practices can vary widely across the world and among varying age groups, and suboptimal habits (such as vaginal douching or the use of certain cleansers) can be associated with increased risks of vulvar and vaginal conditions. Critical areas for discussion when advising women on their intimate health include: advice surrounding aesthetic vulvar cosmetic trends (such as depilation and genital cosmetic surgery), bowel health and habits, and protection against sexually transmitted infections. Routine, once-daily (maximum twice-daily) washing of the vulva with a pH-balanced, mild cleanser is optimal, ideally soon after bowel voiding, when feasible. Due to the finely balanced ecosystems of the vulva, the vagina and the perineal area, a scientific and clinical perspective is essential when determining the most appropriate vulvar cleansers based on their components. Correct intimate care may contribute to improved genital and sexual health and overall well-being. An increased awareness of correct practices will empower women to be the advocates of their own intimate health.

Vaginal CO2 laser therapy for genitourinary syndrome in breast cancer survivors-VagLaser study protocol: a randomized blinded, placebo-controlled trial

BACKGROUND

Vaginal CO2 laser therapy is a new treatment option for genitourinary syndrome of menopause. Its potential is particularly interesting in breast cancer survivors, where existing treatment options often are insufficient as hormonal treatment is problematic in these women. The objective of this study is to investigate the effectiveness of vaginal laser treatment for alleviation of genitourinary syndrome of menopause in breast cancer survivors treated with adjuvant endocrine therapy. The secondary objective is to explore the importance of repeated vaginal laser treatment and the long-term effects in this patient population.

METHODS

VagLaser consist of three sub-studies; a dose response study, a randomized, participant blinded, placebo-controlled study and a follow-up study. All studies include breast cancer survivors in adjuvant endocrine therapy, and are conducted at the Department of Obstetrics and Gynecology, Randers Regional Hospital, Denmark. The first participant was recruited on 16th of February 2023. Primary outcome is vaginal dryness. Secondary subjective outcomes are vaginal pain, itching, soreness, urinary symptoms and sexual function. Secondary objective outcomes are change in vaginal histology (punch biopsy), change in vaginal and urine microbiota, and change in vaginal pH.

DISCUSSION

More randomized controlled trials, with longer follow-up to explore the optimal treatment regimen and the number of repeat vaginal laser treatments for alleviation the symptoms of genitourinary syndrome of menopause in breast cancer survivors treated with endocrine adjuvant therapy, are needed. This study will be the first to investigate change in vaginal and urine microbiota during vaginal laser therapy in breast cancer survivors.

TRIAL REGISTRATION

ClinicalTrials.gov: NCT06007027 (registered 22 August, 2023).

PROTOCOL VERSION

Version 1, Date 13.11.2023.

Modern approach to the management of genitourinary syndrome in women with gynecological malignancies

BACKGROUND

The term genitourinary syndrome of menopause was first used in 2014 by the North American Menopause Society and the International Society for the Study of Women's Sexual Health to describe conditions previously known as atrophic vaginitis, urogenital atrophy, or vulvovaginal atrophy. It is a complex, chronic, progressive condition characterized by a wide range of signs and symptoms affecting sexual function and the tissues of the urinary and genital tracts. The main cause of genitourinary syndrome of menopause is estrogen deficiency caused by ovarian removal or dysfunction. The most bothersome symptoms are vaginal dryness, decreased vaginal lubrication, and pain during penetration and intercourse. They all have a negative impact on the quality of life.

CONCLUSIONS

The main goal of treatment is to relieve the symptoms. Treatment modalities are pharmacological or non-pharmacological. The first-line treatment for mild to moderate symptoms is the use of personal lubricants and moisturizers, but the gold standard is estrogen replacement therapy. Hormone therapy may not be an option for women with hormone-dependent cancer.

Genitourinary Syndrome of Menopause in Breast Cancer Survivors: Current Perspectives on the Role of Laser Therapy

Genitourinary syndrome of menopause (GSM) is a frequent consequence of iatrogenic menopause or anti-estrogenic adjuvant therapies in breast cancer survivors (BCSs). GSM may profoundly affect sexual health and quality of life, and a multidimensional unique model of care is needed to address the burden of this chronic heterogeneous condition. Severe symptoms may be insufficiently managed with non-hormonal traditional treatments, such as moisturizers and lubricants, recommended as the first-line approach by current guidelines, because concerns exist around the use of vaginal estrogens, particularly in women on aromatase inhibitors (AIs). Vaginal laser therapy has emerged as a promising alternative in women with GSM who are not suitable or do not respond to hormonal management, or are not willing to use pharmacological strategies. We aim to systematically review current evidence about vaginal laser efficacy and safety in BCSs and to highlight gaps in the literature. We analyzed results from 20 studies, including over 700 BCSs treated with either CO2 or erbium laser, with quite heterogeneous primary outcomes and duration of follow up (4 weeks-24 months). Although evidence for laser efficacy in BCSs comes mostly from single-arm prospective studies, with only one randomized double-blind sham-controlled trial for CO2 laser and one randomized comparative trial of erbium laser and hyaluronic acid, available data are reassuring in the short term and indicate effectiveness of both CO2 and erbium lasers on the most common GSM symptoms. However, further studies are mandatory to establish long-term efficacy and safety in menopausal women, including BCSs.

Nd:YAG/Er:YAG dual laser vs. topical steroid to treat vulvar lichen sclerosus: study protocol of a randomized controlled trial

PURPOSE

Vulvar lichen sclerosus (LS) is a chronic debilitating inflammatory skin disease. Today, the gold standard is a life-long topical steroid treatment. Alternative options are highly desired. We present a study protocol of a prospective, randomized, active-controlled, investigator-initiated clinical trial comparing a novel non-invasive dual Nd:YAG/Er:YAG laser therapy with the gold standard for the management of LS.

METHODS

We recruited 66 patients, 44 in the laser arm and 22 in the steroid arm. Patients with a physician-administered clinical LS score ≥ 4 were included. Participants received either four laser treatments 1-2 months apart, or 6 months of topical steroid application. Follow-ups were planned at 6, 12, and 24 months. The primary outcome looks at the efficacy of the laser treatment at the 6-month follow-up. Secondary outcomes look at comparisons between baseline and follow-ups within the laser or the steroid arm, and comparisons between laser vs. steroid arm. Objective (LS score, histopathology, photo documentation) and subjective (Vulvovaginal Symptoms Questionnaire, symptom VAS score, patient satisfaction) measurements, tolerability, and adverse events are evaluated.

CONCLUSION

The findings of this trial have the potential to offer a novel treatment option for LS. The standardized Nd:YAG/Er:YAG laser settings and the treatment regime are presented in this paper.

CLINICAL TRIAL IDENTIFICATION NUMBER

NCT03926299.

Effect evaluation and influencing factor analysis of vaginal carbon dioxide laser in the treatment of stress urinary incontinence

To evaluate the clinical efficacy of carbon dioxide laser in the treatment of female stress urinary incontinence and analyze the influencing factors. A total of 46 patients with stress urinary incontinence treated in the Affiliated Hospital of Nantong University from March 2021 to August 2022 were included through strict inclusion criteria and exclusion criteria. All patients were treated with transvaginal carbon dioxide laser therapy, and Patient Global Impression of Change (PGI-C) was used to evaluate patients' subjective satisfaction after treatment. The efficacy was evaluated by patient's subjective assessment of leakage, IngelmanSundberg scale, 1-h urine pad test, and international consultation on incontinence questionnaire short form (ICI-Q-SF) before and after treatment, and the adverse reactions after treatment were recorded. The treatment effect was divided into "significant effect group" and "no significant effect group" by subjective satisfaction and post-treatment-related scale evaluation. After laser treatment, patients' subjective symptom improved, the volume of 1-h urine pad test was reduced, and the ICI-Q-SF score was decreased, and the differences were statistically significant (P < 0.05). There was no significant difference in IngelmanSundberg scale before and after treatment (P = 1.00). Multivariate logistic regression analysis showed that pad test volume was significantly correlated with treatment effect (P = 0.007). Transvaginal carbon dioxide laser is a safe and effective method for the treatment of mild to moderate stress urinary incontinence in females. The less severe the urinary leakage, the better the treatment effect.

Sexual function after energy-based treatments of women with urinary incontinence. A systematic review and meta-analysis

INTRODUCTION AND HYPOTHESIS

Urinary incontinence (UI) affects approximately 50% of adult women worldwide and is associated with declining sexual function (SF). Energy-based devices emerged as a minimally invasive alternative treatment. Nevertheless, their effect on sexuality is uncertain. We hypothesize that the UI energy treatment can lead to sexual function improvement.

METHODS

A search was performed in PubMed, Cochrane Library, Web of Science, Embase, and Scopus for randomized clinical trials (RCTs) and nonrandomized studies of intervention, which treated incontinent women using energy, with UI and sexual function (SF) as outcomes. Severe comorbidities, pelvic organ prolapse (POP)> grade 2, and use of medication to treat UI or that affects SF were excluded. Quality assessment and meta-analysis were performed.

RESULTS

From 322 articles, 11 RCTs were included for qualitative analysis. UI symptoms improved in all studies. Regarding SF, RCT with premenopausal women showed improvement in SF in the Er:Yag group (Pelvic Organ Prolapse/Urinary Incontinence Sexual Questionnaire-12 and Female Sexual Function Index). A prospective study showed improvement in SF independent of the grade of SUI. RF showed benefits for SF but was not superior to pelvic floor muscle training. One nonrandomized study of intervention with a High-Intensity Focused Electromagnetic Field showed significant improvement of SF in the Golombok Rust Inventory of Sexual Satisfaction total score, a decline in pain and dissatisfaction domains. Meta-analysis with 4 RCTs and 2 nonrandomized studies found no difference between groups (0.26 (95% CI -0.67 to 1.20, and -0.74 (95% CI -3.78 to 2.30) respectively).

CONCLUSIONS

This meta-analysis did not confirm that energy equipment improved the SF of women with UI.