A systematic review on vaginal laser therapy for treating stress urinary incontinence: Do we have enough evidence?

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.

Stress Urinary Incontinence: An Unsolved Clinical Challenge

Stress urinary incontinence is still a frequent problem for women and men, which leads to pronounced impairment of the quality of life and withdrawal from the social environment. Modern diagnostics and therapy improved the situation for individuals affected. But there are still limits, including the correct diagnosis of incontinence and its pathophysiology, as well as the therapeutic algorithms. In most cases, patients are treated with a first-line regimen of drugs, possibly in combination with specific exercises and electrophysiological stimulation. When conservative options are exhausted, minimally invasive surgical therapies are indicated. However, standard surgeries, especially the application of implants, do not pursue any causal therapy. Non-absorbable meshes and ligaments have fallen into disrepute due to complications. In numerous countries, classic techniques such as colposuspension have been revived to avoid implants. Except for tapes in the treatment of stress urinary incontinence in women, the literature on randomized controlled studies is insufficient. This review provides an update on pharmacological and surgical treatment options for stress urinary incontinence; it highlights limitations and formulates wishes for the future from a clinical perspective.

Efficacy of termoablative fractional CO2 laser (Monnalisa Touch) in stress urinary incontinence

PURPOSE

Usually, in stress urinary incontinence (SUI), nonsurgical therapy such as pelvic floor muscle training (PFMT) and lifestyle changes are proposed before surgical treatment. Laser therapy has recently been recommended for the treatment of SUI, helping to reconstruct the collagen that supports the vagina and the pelvic floor. The aim of the study was to evaluate the efficacy of SUI treatment with a CO₂ intravaginal laser in patients waiting for anti-incontinence surgery (TVT-O).

METHODS

This is a prospective, case-control study. Fifty-two patients have been included in our study and we divided them into two groups: atrophy and no atrophy. We also adopted a control group retrospectively identified from our database of patients undergoing PFMT. The subjective estimation of SUI symptoms before and after treatment was evaluated using the Visual Analog Scale before and after 1, 6, and 12 months of treatment. The objective evaluation with the urodynamic study with the stress test and a 3-day voiding diary to count the number of episodes of incontinence, before and after treatment.

RESULTS

The intravaginal CO₂ laser improved all the parameters considered for SUI in both groups. Its results were more relevant in the atrophy group, in comparison to the no atrophy group, even if they were both statistically significant. There were no statistically significant differences for all the parameters evaluated for SUI between laser treatment and PFMT in the control group.

CONCLUSION

The CO₂ laser is well-tolerated, minimally invasive, safe, and showing efficacy for SUI. More studies are needed to consider it as first-instance therapy, like PFMT, or at least, as a bridge therapy to surgery.

Vaginal Laser Therapy for Stress Urinary Incontinence: A Systematic Review of Prospective Randomized Clinical Trials

The most common type of urinary incontinence in women is stress urinary incontinence (SUI) which negatively impacts several aspects of life. The newly introduced vaginal laser therapy is being considered for treating SUI. This systematic review aimed to evaluate the efficacy of vaginal laser therapy for stress urinary incontinence in menopausal women. We searched the following databases: MEDLINE (via PubMed), EMBASE, Cochrane Library databases, Web of Science, clinical trial registry platforms, and Google Scholar, using the MeSH terms and keywords [Urinary Incontinence, Stress] and [(lasers) OR laser]. In our systematic review, prospective randomized clinical studies on women diagnosed with SUI as per the International Continence Society's diagnostic criteria were included. The Cochrane Risk-of-Bias assessment tool for randomized clinical trials was used to evaluate the quality of studies. A total of 256 relevant records in literature databases and registers and 25 in additional searches were found. Following a review of the titles, abstracts, and full texts, four studies involving 431 patients were included. Three studies used CO2-lasers, and one used Erbium: YAG-laser. The results of all four studies revealed the short-term improvement of SUI following both the Erbium: YAG-laser and CO2-laser therapy. SUI treatment with CO2-laser and Erbium: YAG-laser therapy is a quick, intuitive, well-tolerated procedure that successfully improves incontinence-related symptoms. The long-term impact of such interventions has not been well established as most trials focused on the short-term effects.

A cost-effectiveness analysis of vaginal carbon dioxide laser therapy compared with standard medical therapies for genitourinary syndrome of menopause-associated dyspareunia

BACKGROUND

Topical vaginal estrogen therapy is considered the gold standard treatment for genitourinary syndrome of menopause-associated dyspareunia, but early investigations of energy-based devices show promise for patients with contraindications or those who are refractory to vaginal estrogen cream therapy. Although evaluating safety, efficacy, and long-term outcomes for novel technologies is critically important when new technologies become available to treat unmet healthcare needs, evaluation of the costs of these new technologies compared with existing therapies is also critically important but often understudied.

OBJECTIVE

We sought to perform a cost-effectiveness analysis of 3 therapies for genitourinary syndrome of menopause, including vaginal estrogen therapy, oral ospemifene therapy, and vaginal CO₂ laser therapy and determine if vaginal laser therapy is a cost-effective treatment strategy for dyspareunia associated with genitourinary syndrome of menopause.

STUDY DESIGN

An institutional review board-exempt cost-effectiveness analysis was performed by constructing a decision tree using decision analysis software (TreeAge Pro; TreeAge Software, Inc, Williamstown, MA) using integrated empirical data from the published literature. Tornado plots and 1-way and 2-way sensitivity analyses were performed to assess how changes in the model's input parameters altered the overall outcome of the cost-effectiveness analysis model.

RESULTS

All 3 treatment methods were found to be cost-effective below the willingness-to-pay threshold of $50,000.00 per quality-adjusted life year for moderate dyspareunia. The incremental cost-effectiveness ratio for vaginal CO2 laser therapy was $16,372.01 and the incremental cost-effectiveness ratio for ospemifene therapy was $5711.14. Although all 3 treatment strategies were on the efficient frontier, vaginal CO₂ laser therapy was the optimal treatment strategy with the highest effectiveness. In a 1-way sensitivity analysis of treatment adherence, vaginal CO₂ laser therapy was no longer cost-effective when the adherence fell below 38.8%. Vaginal estrogen cream and ospemifene therapies remained cost-effective treatment strategies at all ranges of adherence. When varying the adherence to 100% for all strategies, oral ospemifene therapy was "dominated" by both vaginal CO₂ laser therapy and vaginal estrogen cream therapy. In a 2-way sensitivity analysis of vaginal CO₂ laser therapy adherence and vaginal CO₂ laser therapy cost, vaginal CO₂ laser therapy still remained the optimal treatment strategy at 200% of its current cost ($5554.00) when the adherence was >55%. When the cost fell to 20% of its current cost ($555.40), it was the optimal treatment strategy at all adherence values above 29%.

CONCLUSION

This study showed that vaginal fractional CO₂ laser therapy is a cost-effective treatment strategy for dyspareunia associated with GSM, as are both vaginal estrogen and oral ospemifene therapies. In our model, vaginal CO₂ laser therapy is the optimal cost-effective treatment strategy, and insurance coverage should be considered for this treatment option if it is proven to be safe and effective in FDA trials.

The first major complication due to laser treatment for stress urinary incontinence: a short report

AIM

Stress urinary incontinence (SUI) is a common benign disease causing a markedly negative impact on quality of life. Vaginal laser is a minimally invasive treatment and no major complications of this technique have been published to date. The purpose of the article is to present the first major adverse event related to this treatment.

MATERIALS AND METHODS

We present the case of a 48-year-old woman with an important complication after vaginal laser for SUI.

RESULTS

The patient presented a transverse vaginal septum and shortening of vaginal length after two sessions of vaginal erbium:yttrium aluminum garnet laser treatment. She required two surgical interventions, local injections, and pelvic floor physiotherapy, although currently the patient has not experienced complete resolution of symptoms.

DISCUSSION AND CONCLUSIONS

Vaginal laser use can lead to serious adverse events. Selection of patients and treatment must be carried out with caution.

Vaginal energy-based devices: characterization of adverse events based on the last decade of MAUDE safety reports

OBJECTIVES

Energy-based devices have gained momentum as minimally invasive procedures to treat both medical and cosmetic pelvic floor disorders including genitourinary syndrome of menopause, vaginal laxity, stress urinary incontinence, dyspareunia, and vulvar disorders such as lichen diseases and vestibulitis. However, the FDA recently issued a statement cautioning patients and providers that the safety and efficacy of energy-based devices for the treatment of vaginal symptoms has not been well established. Additionally, the FDA sent letters to the manufactures of energy-based devices with notifications that they could be violating the marketing standards of the FDA. The existing data on side effects is insufficient and limited to observational studies. We sought to characterize the safety events of vaginal energy-based devices by analysis of surveillance data from the FDA Manufacturer and User Facility Device Experience (MAUDE) database and specifically look at those events that occurred prior to the July 30, 2018 warning.

METHODS

The MAUDE database was queried between September 30, 2013 and October 31, 2019 for all vaginal energy-based devices. The incidence of safety events was reported for these devices and the most common complaints were described and characterized. Event reporting was analyzed before and after July 30, 2018.

RESULTS

Forty-two unique and relevant medical device reports (MDRs) were retrieved. The Mona Lisa Touch had the highest number of MDRs (40.5%) followed by ThermiVa (16.7%) and Viveve (14.2%). Each medical device report was associated with a single patient experience and within the 42 medical device reports, there were 85 complaints. A majority of the MDR complaints (52.9%) were also indications for energy-based devices procedures, which include vaginal pain, dyspareunia, lichen sclerosis, and urinary frequency. Two-thirds of the complaints (68.2%) were related to pain, but serious adverse events such as third-degree burns (3.5%) were rare. Most of the reportable events occurred before July 30, 2018 (83.3%), but most were reported after July 30, 2018 (78.6%).

CONCLUSIONS

MAUDE-reported data suggests that the majority of patient complaints after vaginal energy-based device treatment include vaginal pain, bladder pain, and urinary symptoms. This study suggests that the majority of complaints are not severe, and some may be related to progression of the disease. The few severe adverse events reported in the MAUDE database may have contributed to the FDA warning regarding energy-based devices. Recall bias after the FDA warning, as well as the potential for litigation, may have prompted an increase in adverse event reporting after July 30, 2018.

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.

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.

Efficacy of Fractional CO2 Laser, Promestriene, and Vaginal Lubricant in the Treatment of Urinary Symptoms in Postmenopausal Women: A Randomized Clinical Trial

BACKGROUND AND OBJECTIVES

Evaluating the efficacy of the fractional CO₂ laser, promestriene, and vaginal lubricant to treat urinary symptoms in women with genitourinary syndrome of menopause.

STUDY DESIGN/MATERIALS AND METHODS

We conducted a randomized clinical trial with 72 postmenopausal women aged 50 years or older. The participants were randomized to one intervention each in three treatment groups fractional CO₂ laser, promestriene, and vaginal lubricant. Urinary symptoms were assessed prior to treatment and 2 weeks after treatment completion using validated questionnaires, the International Consultation on Incontinence Questionnaire (ICIQ-UI SF), and the International Consultation on Incontinence Questionnaire Overactive Bladder (ICIQ-OAB).

RESULTS

There was a significant reduction in the total ICIQ-UI SF score in the intragroup comparison (baseline vs. week 14) of the CO₂ laser group (P = 0.004). This group also showed a statistically significant reduction in nocturia (1.33 ± 0.87 vs. 1.00 ± 0.76, respectively; P = 0.031). In the intergroup comparison after treatment, nocturia in the lubricant group had worsened compared with that of the other two groups (P = 0.002). Regarding the total ICIQ-OAB score, the results of the CO₂ laser group were superior to those of the lubricant group in the intergroup comparison (7.76 ± 3.36, P = 0.020; analysis of variance P = 0.038).

CONCLUSION

The results were significantly different between the intravaginal fractional CO₂ laser and topical estrogen groups for treating urinary symptoms related to the genitourinary syndrome of menopause. Further controlled and randomized studies are needed. Lasers Surg. Med. © 2020 Wiley Periodicals, Inc.

Quality and Reliability of Publicly Accessible Information on Laser Treatments for Urinary Incontinence: What Is Available to Our Patients?

STUDY OBJECTIVE

To determine the quality and reliability of the top 20 internet search results for laser treatment of stress urinary incontinence (SUI).

DESIGN

Review of 20 websites.

SETTING

N/A.

PATIENTS

None.

INTERVENTIONS

An internet search with the most popular search engine, Google, was undertaken to identify the top 20 websites for laser treatment of SUI. The DISCERN instrument, Journal of the American Medical Association (JAMA) benchmarks, and Health on the Net Foundation Code of Conduct certification, which are standardized, validated tools for the analysis of website quality, credibility, and transparency, were used independently by 7 healthcare workers. The readability of the information was assessed by a single reviewer using the Flesch-Kincaid Grade Level and Automated Readability Index. The intraclass correlation coefficient was calculated to document the reliability among website assessors.

MEASUREMENTS AND MAIN RESULTS

Of the 20 websites reviewed, 15 were created by private clinics, 2 by online newspaper or newsletter sites, and 3 by laser medical device manufacturers. None of the websites met all of the JAMA criteria: 1 had attained authorship, 1 had clear attribution, none had adequate disclosure, and 2 achieved currency. None of the websites took part in the Health on the Net Foundation Code of Conduct certification program. The mean DISCERN score (to determine the quality of websites) was 40 (out of 80), with the lowest average scores within the DISCERN tool primarily associated with clarity around sources of information, website bias, posting dates, risks of treatment, and shared treatment decision-making. The intraclass correlation coefficient was calculated for the DISCERN tool (0.72; 95% confidence interval, 0.48-0.87) and JAMA benchmarks (0.85; 95% confidence interval, 0.73-0.93). The mean Flesch-Kincaid Grade Level was 13.2 (±3.1) and the Automated Readability Index scores ranged from 7.6 to 22.8 (mean 13.5 ± 3.5).

CONCLUSION

There is a lack of good quality, reliable, and unbiased information available to patients on laser treatment of SUI on the most commonly searched websites. Information is presented at a reading level that is above that of the average reader, which may indicate that patients will have trouble comprehending the information.

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.