Rationale and design for fractional microablative CO2 laser versus photothermal non-ablative erbium:YAG laser for the management of genitourinary syndrome of menopause: a non-inferiority, single-blind randomized controlled trial

Laser treatment for genitourinary syndrome of menopause: Scientific Impact Paper No. 72 (July 2022): Scientific Impact Paper No. 72 (July 2022)

Genitourinary syndrome of menopause (GSM) is the term used to describe the group of symptoms including vaginal pain, vaginal dryness, itching, pain during sexual intercourse and fragile vaginal tissues as well as urinary symptoms including urinary frequency, urgency, incontinence, blood in the urine (haematuria) and recurrent urinary tract infections that occur due to a lack of the hormone estrogen. These symptoms can have a significant negative impact on psychosexual issues, sexual function and quality of life in postmenopausal women. Traditionally women have been treated with vaginal lubricants, vaginal moisturisers or low-dose vaginal estrogens. Lasers have been used in the cosmetic industry for collagen remodelling and repair of the skin. Therefore, it has been suggested that laser therapy may be used on the vagina as an alternative treatment for GSM. A review of all the published studies assessing the safety and efficacy of laser therapy for GSM have shown promising beneficial results. The majority of studies to date have been small, short-term, observational studies. However, there are randomised controlled trials underway. Laser treatment may be beneficial for the symptoms of GSM but until more robust evidence is available it should not be adopted into widespread practice, and should be used as part of a research study only.

Non-oestrogenic modalities to reverse urogenital aging

Urogenital aging is a common process affecting all women in the post-menopausal period of their life, and it is substantially due to oestrogen deprivation after ovarian function cessation. These changes can lead to a progressive, chronic, and complex association of symptoms identified as the genitourinary syndrome of menopause, which has a significant impact on quality of life. Genitourinary syndrome and urogenital aging do not resolve spontaneously and usually recur when treatment is stopped. Therefore, appropriate long-term management is of paramount importance, and local oestrogen is the most effective treatment to reverse urogenital aging and to improve symptoms of genitourinary syndrome as replacement therapy. In some women, topical oestrogen may be inconvenient, it may not achieve complete response, or it may be contra-indicated. Several non-hormonal therapies have been investigated, but few treatments have been reported as potentially able to reverse the urogenital aging process similarly to exogenous oestrogens. Laser seems the most promising, although further studies to define its safety and efficacy are mandatory. Vitamin D and E, and phytotherapy have returned conflicting results and require further confirmation. Lifestyle modifications, physiotherapy, and electrical stimulation represent inexpensive and applicable treatments that might slow urogenital aging. Among the hormonal non-oestrogenic therapies, the use of vaginal oxytocin and dehydroepiandrosterone have been found to be effective compared to placebo, as well as the use of oral ospemifene, which partially relieves vulvovaginal atrophy.

Lasers in the era of evidence-based medicine

Transvaginal laser therapies are being increasingly used for a variety of indications, particularly genitourinary syndrome of the menopause and stress urinary incontinence. This article reviews the current data pertaining to the place of these devices in current clinical practice. Whilst there has been a rapid increase in the number of publications over the last few years, many of the studies are of small numbers, short duration, and poor quality and are device-sponsored. The evidence suggests that vaginal laser therapy with either the erbium-doped yttrium aluminum garnet laser (FotonaSmooth^®) or the CO₂ laser (MonaLisa Touch^®) is an effective intervention for the relief of symptoms of vulvovaginal atrophy in symptomatic women. The benefits of three laser treatments appear to last for at least 12 months and the procedure is generally well tolerated, with transient minor discomfort being the most common adverse event. Whilst the vaginal laser certainly has the potential to be an alternative treatment to vaginal estrogens for those groups of women, such as breast cancer patients, who cannot take them, there are still many unanswered questions about the role of vaginal laser therapy in clinical practice, particularly in relation to standard conservative management. The place of vaginal laser therapy in other conditions such as stress urinary incontinence is less clear. The outcomes from several ongoing randomized trials should help to answer some of these questions. In the meantime, the use of vaginal laser devices should be confined to clinical trials.

Microablative fractional radiofrequency for the genitourinary syndrome of menopause: protocol of randomised controlled trial

INTRODUCTION

Menopause is a physiological and progressive phenomenon secondary to decreased ovarian follicular reserve. These changes have consequences: vaginal dryness, dyspareunia, discomfort, burning and irritation, vulvovaginal pruritus, dysuria and increased frequency of genitourinary infections. The therapy more suitable for vaginal symptoms in postmenopause yet is the use of a topical hormone. However, the prescription of topical oestrogens should also be avoided in women with a history of breast cancer, oestrogen-sensitive tumours and thromboembolism, emphasising the necessity of alternative treatments. Recently, physical methods, such as laser and radiofrequency (RF), in their non-ablative, ablative and microablative forms have been used in the vaginal mucosa to promote neocolagenesis and neoelastogenesis. This randomised study aims to compare the efficiency of microablative fractional RF (MAFRF) treatment with vaginal oestrogens and no treatment.

METHODS AND ANALYSES

This randomised, controlled clinical intervention trial with an open label design comparing the treatment of MAFRF with vaginal oestrogens and no treatment. Four important moments were considered to evaluate treatment results (T0, T1, T2 and T3). The primary outcome includes vulvovaginal atrophy (vaginal pain, burning, itching, dryness, dyspareunia and dysuria), and the secondary outcomes will be sexual function, vaginal health (epithelial integrity, vaginal elasticity, moisture, fluid volume and vaginal pH) and quality of life.

ETHICS AND DISSEMINATION

Due to the nature of the study, we obtained approval from the ethics committee. All participants must sign an informed consent form before randomisation. The results of this study will be published in peer-reviewed journals. The data collected will also be available in a public repository of data.

TRIAL REGISTRATION NUMBER

RBR-94DX93.

Carbon Dioxide Laser Vulvovaginal Rejuvenation: A Systematic Review

Genitourinary syndrome of menopause (GSM) causes significant symptomatic aggravation that affects the quality of life (QoL). Vulvovaginal atrophy (VVA), the hallmark of GSM, is managed with topical non-hormonal therapy, including moisturizers and lubricants, and topical estrogen application. Patients not responding/being unsatisfied with previous local estrogen therapies are candidates for a noninvasive modality. Carbon dioxide (CO2) laser therapy, especially the fractionated type (FrCO2), has drawn considerable attention over the past two decades as a non-invasive treatment for GSM. This systematic review describes the accumulated evidence from 40 FrCO2 laser studies (3466 participants) in GSM/VVA. MEDLINE, Scopus and Cochrane databases were searched through April 2021. We analyze the effects of FrCO2 laser therapy on symptoms, sexual function, and QoL of patients with GSM/VVA. As shown in this review, FrCO2 laser therapy for GSM shows good efficacy and safety. This modality has the potential to advance female sexual wellness. Patient satisfaction was high in the studies included in this systematic review. However, there is a lack of level I evidence, and more randomized sham-controlled trials are required. Furthermore, several clinical questions, such as the number of sessions required that determine cost-effectiveness, should be addressed. Also, whether FrCO2 laser therapy may exert a synergistic effect with systemic and/or local hormonal/non-hormonal treatments, energy-based devices, and other modalities to treat GMS requires further investigation. Lastly, studies are required to compare FrCO2 laser therapy with other energy-based devices such as erbium:YAG laser and radiofrequency.

Vaginal laser therapy for genitourinary syndrome of menopause - systematic review

BACKGROUND

Genitourinary syndrome of menopause (GSM) can have a great impact on the quality of life (QOL), and affects between 53.8% and 90% of postmenopausal women. The literature suggests that vaginal laser therapy could be an effective treatment for GSM symptoms, but its efficacy and safety have not been established and international societies do not endorse its use. Despite that, there has been an increase in the use of vaginal laser therapy globally over the last decade.

OBJECTIVE

The objective of this review is to evaluate the literature which assesses the efficacy and safety of the vaginal laser therapy in the treatment of GSM.

METHODS

A comprehensive literature search was conducted electronically using Embase and PubMed to retrieve studies assessing evidence for the efficacy and safety of vaginal laser therapy for GSM or vulvovaginal atrophy up to June 2021.

RESULTS

A total of 64 studies were finally included in the review. There were 10 controlled intervention studies, 7 observational cohort and cross-sectional studies and 47 before-after studies without a control group.

CONCLUSION

Vaginal laser seems to improve scores on the Visual Analogue Scale (VAS), Female Sexual Function Index (FSFI) and Vaginal Health Index (VHI) in GSM over the short term. Safety outcomes are underreported and short-term. Further well-designed clinical trials with sham-laser control groups and evaluating objective variables are needed to provide the best evidence on efficacy.

The 2020 genitourinary syndrome of menopause position statement of The North American Menopause Society

OBJECTIVE

To update and expand the 2013 position statement of The North American Menopause Society (NAMS) on the management of the genitourinary syndrome of menopause (GSM), of which symptomatic vulvovaginal atrophy (VVA) is a component.

METHODS

A Panel of acknowledged experts in the field of genitourinary health reviewed the literature to evaluate new evidence on vaginal hormone therapies as well as on other management options available or in development for GSM. A search of PubMed was conducted identifying medical literature on VVA and GSM published since the 2013 position statement on the role of pharmacologic and nonpharmacologic treatments for VVA in postmenopausal women. The Panel revised and added recommendations on the basis of current evidence. The Panel's conclusions and recommendations were reviewed and approved by the NAMS Board of Trustees.

RESULTS

Genitourinary syndrome of menopause affects approximately 27% to 84% of postmenopausal women and can significantly impair health, sexual function, and quality of life. Genitourinary syndrome of menopause is likely underdiagnosed and undertreated. In most cases, symptoms can be effectively managed. A number of over-the-counter and government-approved prescription therapies available in the United States and Canada demonstrate effectiveness, depending on the severity of symptoms. These include vaginal lubricants and moisturizers, vaginal estrogens and dehydroepiandrosterone (DHEA), systemic hormone therapy, and the estrogen agonist/antagonist ospemifene. Long-term studies on the endometrial safety of vaginal estrogen, vaginal DHEA, and ospemifene are lacking. There are insufficient placebo-controlled trials of energy-based therapies, including laser, to draw conclusions on efficacy and safety or to make treatment recommendations.

CONCLUSIONS

Clinicians can resolve many distressing genitourinary symptoms and improve sexual health and the quality of life of postmenopausal women by educating women about, diagnosing, and appropriately managing GSM. Choice of therapy depends on the severity of symptoms, the effectiveness and safety of treatments for the individual patient, and patient preference. Nonhormone therapies available without a prescription provide sufficient relief for most women with mild symptoms. Low-dose vaginal estrogens, vaginal DHEA, systemic estrogen therapy, and ospemifene are effective treatments for moderate to severe GSM. When low-dose vaginal estrogen or DHEA or ospemifene is administered, a progestogen is not indicated; however, endometrial safety has not been studied in clinical trials beyond 1 year. There are insufficient data at present to confirm the safety of vaginal estrogen or DHEA or ospemifene in women with breast cancer; management of GSM should consider the woman's needs and the recommendations of her oncologist.

[Vaginal LASER therapy for genito-urinary disorders: A systematic review and statement from the Committee for Female Urology and Pelviperineology of the French Association of Urology]

INTRODUCTION

Vaginal LASER therapy is increasingly used in the field of urogynecology, but several points remain unclear. Our goal was to produce a systematic review of available evidence and provide a critical appraisal of available data.

METHODS

A systematic review until march 2020 was conducted using PubMed/MEDLINE, Cochrane and Embase databases. All studies about vaginal LASER use in the field of urogynecology were included.

RESULTS

Forty studies have been included (8 for genitourinary syndrome of menopause, 19 for stress urinary incontinence, 3 for overactive bladder, 7 for urogenital prolapse, 3 for other indications). Data were heterogeneous, and level of evidence was weak or very weak. Few studies were comparative, and only 3 were randomized). Mild improvement of symptoms and quality of life and limited satisfaction were seen for genitourinary syndrome, stress urinary incontinence, overactive bladder and prolapse. Few adverse events were reported. However, major methodological biases were noted regarding efficacy and safety evaluation. No long-term results were available.

CONCLUSIONS

While Vaginal LASER therapy seem to provide encouraging results, the level of evidence supporting its use was weak, especially regarding long-term outcomes. Studies of better quality are warranted before any recommendation can be made. Current use should be limited to clinical research.

The Fractional CO2 Laser for the Treatment of Genitourinary Syndrome of Menopause: A Prospective Multicenter Cohort Study

Background and Objectives

Genitourinary syndrome of menopause (GSM) is a common condition affecting of most postmenopausal women, which greatly impacks the quality of life,and need to treat. This prospective multicenter cohort study aimed to compare the efficacy and safety of the fractional carbon dioxide (CO₂) laser with that of topical estrogen for vaginal treatment and relieving symptoms of genitourinary syndrome of menopause (GSM).

Study Design/Materials and Methods

This study included 162 postmenopausal patients who received vaginal laser or topical Estriol cream therapy between January 2017 and May 2019 at eight study centers in China. The degree of GSM‐related symptoms (vaginal burning, dryness, and dyspareunia) was evaluated using the Vaginal Health Index score (VHIS) and Visual Analog Scale (VAS) at baseline, 1, 3, 6, and 12 months posttreatment. The primary endpoint was the improvement in vaginal burning, dryness, and dyspareunia at 6 months after treatment. Multivariate logistic regression was used to compare the rate of improvement in the two groups.

Results

At baseline, the laser and control groups showed no significant difference in the mean age, time after menopause, and the VHIS (all P > 0.05). In the laser group, compared with baseline, significant differences were seen in the VHIS after the first or second treatment session and at 1, 3, 6, and 12 months posttreatment (P < 0.01). In the control group, compared with baseline, the VHIS showed significant differences after 1, 3, and 6 months of treatment (P < 0.05). However, there was no significant difference after 3 and 6 months of follow‐up between the two groups (P > 0.05). The VHIS scores were significantly higher after 1 month (16.63 ± 2.79 vs. 15.57 ± 2.43) and 12 months (15.72 ± 2.59 vs. 12.12 ± 4.08) of treatment in both the groups (P < 0.05). At 6 months after treatment, both groups showed improvement in vaginal burning, vaginal dryness, and dyspareunia (P > 0.05). The VAS findings at 6 months posttreatment were significantly different when compared with the pretreatment findings (P < 0.001). There were no significant adverse effects in the two groups.

Conclusions

Fractional CO₂ laser vaginal treatment could be a safe and effective option for treating symptoms of GSM, including vaginal burning, dryness, and dyspareunia. The improvement in symptoms was comparable with that seen with topical estrogen therapy and lasted for at least 6–12 months posttreatment. Lasers Surg. Med. © 2020 Wiley Periodicals LLC

Update: The Clinical Role of Vaginal Lasers for the Treatment of the Genitourinary Syndrome of Menopause

OBJECTIVE

To educate providers on the emergence of vaginal lasers for the treatment of the genitourinary syndrome of menopause (GSM) and discuss the peer-reviewed literature regarding their use.

MATERIALS AND METHODS

A search of literature databases (PubMed and Medline) was performed for publications in February 2020. Keywords included genitourinary syndrome of menopause, urinary incontinence, overactive bladder, urgency, urinary tract infections, atrophy, laser, and vaginal. We reviewed the available published literature, identifying articles, guidance, and society statements on the use vaginal laser therapies.

RESULTS

The literature regarding vaginal laser therapy in the treatment of the GSM is primarily limited to prospective case series with small numbers and short-term follow-up. Nevertheless, these studies have demonstrated reductions in genitourinary syndrome of menopause symptoms. High quality data describing the safety, benefits, and appropriate use of vaginal laser therapy is lacking.

CONCLUSION

Vaginal laser treatment for the GSM is of interest as it provides patients with a nonhormonal treatment option. Further research to better outline the indications, efficacy, safety, and applications of this technology is needed before supporting its universal use for the management of the GSM.

The Efficacy of Vaginal Laser and Other Energy-based Treatments on Genital Symptoms in Postmenopausal Women: A Systematic Review and Meta-analysis

OBJECTIVE

This systematic review examined energy-based treatments of the vagina for postmenopausal vaginal symptoms.

DATA SOURCES

We performed a systematic review from April 2017 (the end date of our previous review) to April 2020, searching Medline, Embase, and Scopus.

METHODS OF STUDY SELECTION

The inclusion criteria were all randomized studies, prospective studies with >10 cases, and retrospective studies with >20 cases published in English or French that assessed change in postmenopausal vaginal symptoms and/or sexual function in women after energy-based vaginal treatments. Meta-analyses were performed on randomized data.

TABULATION, INTEGRATION, AND RESULTS

Of the 989 results retrieved, 3 randomized studies, 16 prospective studies, and 7 retrospective studies were included in the review, representing data from 2678 participants. Pooled data from 3 randomized controlled trials show no difference between vaginal laser and topical hormonal treatments for change in vaginal symptoms (-0.14, 95% confidence interval -1.07 to 0.80) or sexual function scores (2.22, 95% confidence interval -0.56 to 5.00). Furthermore, no difference among vaginal laser, topical hormone, and lubricant was demonstrated in sexual function (p = .577). As in our previous review, non-randomized data support energy-based treatments in improving vaginal symptoms, sexual function, and clinician-reported outcomes. No severe adverse events were reported in the included studies. Significant heterogeneity of data arising from differing measures and reported outcomes continues to be an issue, with data remaining low quality, with high risk of bias, and no double-blind or placebo-controlled randomized trials yet reported, although 1 has now completed recruitment.

CONCLUSION

There are 3 randomized trials comparing energy-based systems with hormonal treatment, with no clinical difference in these 2 approaches. Although prospective data continue to show promising outcomes, without strong evidence from well-powered, double-blind placebo-controlled trials to determine the efficacy of treatment compared with placebo, the use of energy-based treatments should continue to be undertaken in research studies only, with high-quality studies essentially free from bias (International Prospective Register of Systematic Review registration number: 178346).

Lasers in gynaecology

The use of lasers to treat gynaecological and urogynaecological conditions including genitourinary syndrome of the menopause, stress urinary incontinence, vaginal prolapse and other conditions, has become increasingly popular over recent years. Following widespread concerns over the use of mesh for treating stress urinary incontinence and pelvic organ prolapse and potential adverse outcomes from the use of mesh, there has been heightened awareness and debate over the introduction and adoption of new technologies and interventions within the speciality. On July 30th 2018 the United States Food and Drug Administration (FDA) issued a warning against the use of energy based devices (EBDS) including laser to perform "vaginal rejuvenation" or vaginal cosmetic procedures. Numerous review articles and editorials have urged for greater evidence on the efficacy and safety of vaginal lasers This review outlines the evidence to date for the use of lasers in the treatment of gynaecological conditions.

Is there enough evidence to justify the use of laser and other thermal therapies in female lower urinary tract dysfunction? Report from the ICI-RS 2019

AIMS

There is increasing evidence to suggest that thermomodulation may have a role in the management of women with lower urinary tract dysfunction (LUTD) and there has been widespread adoption of laser and radiofrequency (RF) therapies within clinical practice. However, in many areas of LUTD, the data are still limited and there remains a need for further evaluation of the safety and efficacy of thermal therapy. The aim of this study proposal is to report the findings of the International Consultation on Incontinence Research Society to clarify our current knowledge regarding the evidence for thermal therapy in LUTD and to set research priorities for the future.

METHODS

Literature review based on the search terms: "laser," "radiofrequency," "genitourinary syndrome of the menopause" or "urogenital atrophy," "stress urinary incontinence (SUI)," "pelvic organ prolapse," "OAB" or "overactive bladder," and "urinary tract infection."

RESULTS

The current available evidence, though of low or very low quality, appears promising for the use of laser therapy in the management of genitourinary syndrome of the menopause, there are some data to suggest a possible role in SUI although very little evidence for urogenital prolapse. At present, the evidence supporting the use of laser in OAB and recurrent urinary tract infection is limited or lacking, while the available evidence for RF in the management of all forms of LUTD is much less robust.

CONCLUSIONS

Laser and RF are being introduced clinically as a minimally invasive, low-risk interventions for women with LUTD although at present, the evidence supporting usage is limited. Consequently, there is an urgent need to demonstrate the safety and efficacy with prospective long-term studies including sham studies and comparative studies with current standard therapy.

Treating Vaginal Laxity Using Nonablative Er:YAG Laser: A Retrospective Case Series of Patients From 2.5 Years of Clinical Practice

INTRODUCTION

Vaginal laxity drastically impairs women's quality of life, suggesting there is a need for effective noninvasive treatments.

AIM

The aim was to retrospectively assess the effectiveness and safety of a nonablative Er:YAG IntimaLase laser procedure for vaginal laxity in patients treated in our clinical practice during a 2.5-year period.

METHODS

Laser treatment for vaginal laxity was performed using an intravaginal nonablative Er:YAG laser. Effectiveness was assessed using a Patient Satisfaction Questionnaire and also by independent evaluation of before and after treatment photographs of the patients' introitus. The safety and tolerability of the procedure was monitored in all patients.

MAIN OUTCOME MEASURE

The study showed an improvement of sexual gratification and improvement of vaginal tightness, as assessed by patients. The tightness of the introitus was also improved, as assessed by independent evaluators.

RESULTS

As assessed by the Patient Satisfaction Questionnaire, we show that 92.7% of patients experienced improvement of sexual gratification after IntimaLase laser treatment. The results of the visual evaluation of the grade of laxity improvement in the introitus area, when open introitus photos were evaluated, show that 69% (n = 20/29) of patients had an improvement of laxity. Nonablative Er:YAG treatment seems to be an effective and safe treatment for vaginal laxity. As it is a noninvasive procedure, it should be considered before any vaginoplasty surgery. The study included all the patients treated in clinical practice and observed very few adverse effects. The results were comparable with other published data. Because it is a retrospective study, there is a lack of a control group.

CONCLUSION

The results have confirmed that patients suffering from vaginal laxity can be effectively treated using the nonablative Er:YAG IntimaLase procedure without adverse effects. Mitsuyuki M, Štok U, Hreljac I. Treating Vaginal Laxity Using Nonablative Er:YAG Laser: A Retrospective Case Series of Patients From 2.5 Years of Clinical Practice. Sex Med 2020;8:265-273.

Laser treatment for the management of genitourinary syndrome of menopause after breast cancer. Hope or hype?

INTRODUCTION AND HYPOTHESIS

Fractional CO₂ and vaginal erbium lasers have emerged as potential treatment options for genitourinary syndrome of menopause (GSM) in breast cancer (BC) survivors.

METHODS

We conducted a systematic review of the literature to ascertain whether available evidence supports the efficacy and safety of laser treatment for GSM in BC patients. MEDLINE, Scopus and Cochrane Library databases were systematically searched from inception until March 2019 for studies on laser treatment for GSM in BC patients.

RESULTS

We yielded six observational studies meeting the inclusion criteria. The studies were of moderate quality. Taken together, the studies suggest that laser treatment may significantly alleviate or resolve the GSM-related symptoms and improve sexual function. Furthermore, a significant increase of the vaginal health index was reported. Positive effect was maintained up to 12 months. The safety and tolerability profile is encouraging, given that no adverse effects were reported, while only few patients discontinued laser treatment, owing to reported discomfort.

CONCLUSIONS

Our findings suggest that lasers appear to be effective and practical treatment options in BC survivors suffering from GSM. Evidence concerning long-term effects is lacking. The rationale for repeated treatment remains uncertain. Randomized controlled trials that collate different frequencies, intensities and durations are warranted to ascertain a dose-response relationship and adherence.

IUGA committee opinion: laser-based vaginal devices for treatment of stress urinary incontinence, genitourinary syndrome of menopause, and vaginal laxity

This committee opinion reviews the laser-based vaginal devices for treatment of genitourinary syndrome of menopause, vaginal laxity, and stress urinary incontinence. The United States Food and Drug Administration has issued a warning for unsubstantiated advertising and use of energy-based devices. Well-designed case-control studies are required to further investigate the potential benefits, harm, and efficacy of laser therapy in the treatment of genitourinary syndrome of menopause, vaginal laxity, and stress urinary incontinence. The therapeutic advantages of nonsurgical laser-based devices in urogynecology can only be recommended after robust clinical trials have demonstrated their long-term complication profile, safety, and efficacy.