Botulinum toxin for vaginismus treatment

Cosmetic gynecology-An emerging field for the dermatologist

INTRODUCTION

Cosmetic gynecology is an expanding field with a steep rise in awareness and demand for procedures to enhance the aesthetic appearance of female genitalia.

AIM

This article aims to provide an overview of aesthetic gynecology for a practicing dermatologist.

METHODS

A study conducted in India showed a rising trend in the demand of aesthetic vaginal procedures from 3.9% in 2012 to 28.97% in 2015.

CONCLUSION

Several aesthetic modalities such as peels, platelet rich plasma, and energy-based devices and surgical modalities have been in use, though serious evidence for efficacy of many of these procedures is lacking.

Comparative Study of 150 vs. 200 Units of Botulinum Toxin as Treatment for Vaginismus

OBJECTIVE

 To comparatively evaluate the outcome of treatment with 150 versus 200 units (U) of botulinum toxin in achieving pain-free intercourse and relieving muscle contraction in order to allow gynecological examination.

METHODS

 In this comparative prospective observational study, 99 patients with vaginismus were treated with botulinum toxin injections from September 2016 to August 2021. Diagnosis and grading of vaginismus severity were assessed using a Female Sexual Function Index (FSFI) questionnaire. Under local or general anesthesia, botulinum toxin diluted with preservative-free saline (150 U and 200 U) was injected into, above, and below the right and left bulbospongiosus muscle and the lateral submucosal areas of the introitus and perineal body using an insulin syringe. Patients were recalled after 2 weeks, and the postoperative outcome was recorded using a similar preoperative questionnaire.

RESULTS

 Overall, the mean age of patients was 30.2 years. The baseline and clinical characteristics were comparable between the 2 groups (p > 0.05). Significant improvements were seen in the pain and anxiety scores of finger penetration, dilator use, intercourse, and cotton swab in individual groups. The intergroup comparisons between 150 U and 200 U of Botox were not statistically significant (p > 0.05).

CONCLUSION

 Low-dose Botox (150 U) is equally effective as high dose Botox injections (200 U) in vaginismus patients. Therefore, Botox-150 U can be used to treat vaginismus as an alternative to high doses of the same substance.

Use of Botulinum Toxin (Botox®) in Cases of Refractory Pelvic Floor Muscle Dysfunction

INTRODUCTION

Pelvic floor muscle (PFM) dysfunction is a sexual pain disorder characterized by involuntary spasm of pelvic floor muscles (PFMs) around the vagina that interferes with intercourse or any kind of vaginal penetration, making it impossible or extremely painful. Recently, researchers have shown increased interest in botulinum toxin (BoNTA) as an alternative option for refractory cases of PFM dysfunction, especially those that fail first-line treatments. Questions have been raised about the efficacy of BoNTA for the treatment of PFM dysfunction.

OBJECTIVES

To provide an updated and comprehensive review on the role of BoNTA in the management of refractory PFM dysfunction.

METHODS

We reviewed the literature using a systematic search strategy via PubMed and Google Scholar databases, to identify articles investigating the use of BoNTA in PFM dysfunction. We included studies that explored its indications, mechanism of action, injection dosing and technique, success rate, side effects, and contraindications.

RESULTS

We identified 20 relevant articles. Of these, 12 were original studies: 7 clinical trials, 1 retrospective cohort study and 4 case reports or case series. Doses of BoNTA that were used in these studies ranged between 20 and 500 units. The most commonly injected sites were levator ani muscles. Success rates varied between 62 and 100 %. Most studies showed no recurrence within 1 year after treatment. The majority of these studies used BoNTA after conventional first-line treatments have failed.

CONCLUSION

PFM dysfunction is a debilitating condition that adversely affects quality of life. There is promising evidence to support the use of BoNTA in cases of refractory PFM dysfunction. Further randomized controlled trials are warranted to standardize the use of BoNTA as a treatment option for these cases. Gari R, Alyafi M, Gadi RU, et al. Use of Botulinum Toxin (Botox) in Cases of Refractory Pelvic Floor Muscle Dysfunction. Sex Med Rev 2021;XX:XXX-XXX.

Materials Selection for the Injection into Vaginal Wall for Treatment of Vaginal Atrophy

Vaginal atrophy caused by the aging process and perineal trauma has a negative impact on women. A new vaginal atrophy treatment is injection of materials into the vaginal wall, including platelet-rich plasma (PRP), autogenous fat graft (AFG), hyaluronic acid (HA), botulinum toxin (BTX), and collagen, but to date their efficacy has not been reviewed. Vaginal wall injection is available only for mild cases of vaginal atrophy or as an adjunct to vaginal surgery. PRP is used mainly to restore vaginal function, and multiple injections are needed to achieve good results in vaginal atrophy. HA, AFG, and collagen are used mainly to augment the vaginal wall. BTX injection can inhibit vaginal muscle spasm and reduce pain during sexual intercourse in patients with vaginismus. Injection of most of these materials into vaginal wall is effective and relatively safe. Vascular embolisms are the most serious complication of vaginal injection and should be prevented. In addition, there has been no randomized double-blind placebo-controlled trial or discussion of methods to avoid serious complications resulting from vaginal injection. Therefore, further studies of the injection of materials into the vaginal wall to treat vaginal atrophy are required, and the procedures should be standardized to benefit more patients.Level of Evidence IV This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .

Comparing the effectiveness of functional electrical stimulation via sexual cognitive/behavioral therapy of pelvic floor muscles versus local injection of botulinum toxin on the sexual functioning of patients with primary vaginismus: a randomized clinical trial

INTRODUCTION AND HYPOTHESIS

Most patients suffering from vaginismus feel sinful, anxious, and incompetent, with reduced self-confidence. This study was aimed at comparing the effectiveness of the physiotherapy of pelvic floor muscles as a standard treatment and local injection of botulinum toxin on the sexual functioning of patients with primary vaginismus.

METHODS

In this randomized clinical trial (RCT), the study population included women with primary vaginismus referred to the Sexual Health and Gynecologic Clinics of Imam Khomeini Hospital during 2013-2014. They were diagnosed according to DSM-5 criteria and underwent treatments with botulinum injection (intervention group) and physiotherapy as the current treatment (control group). The participants' primary and secondary outcomes were measured based on successful intercourse and sexual functioning of each group.

RESULTS

The results indicated that the overall standard physiotherapy, along with other measurements, such as functional electrical stimulation and desensitization, could effectively improve the patients' Female Sexual Function Index compared with botulinum treatment. At the end of the study, it was found that 20 and 26 patients out of the 30 and 28 patients in the intervention and control groups managed to have successful intercourse respectively (P = 0.014). Also, sexual dysfunction frequencies were seen to be decreased by 26.6% and 50% in the mentioned groups respectively (p = 0.008 and p < 0.001).

CONCLUSIONS

Considering the higher efficacy of physiotherapy procedures compared with those of the desensitization and electrical stimulation techniques, this therapeutic method should be considered the first-line treatment of vaginismus (IRCT2016061828486N1).

An Interdisciplinary Approach to Endometriosis-associated Persistent Pelvic Pain

Endometriosis-associated pelvic pain is a common and often challenging problem. For certain patients, pain persists or recurs despite adequate medical or surgical therapy targeted to endometriosis. In this patient population, there is often the presence of coexisting pain conditions such as irritable bowel syndrome, painful bladder syndrome and myofascial pain as well central sensitisation. An interdisciplinary approach where both peripheral pain triggers and central sensitization are addressed is likely to lead to improved pain and quality of life. The approach to the evaluation and treatment of the patients with persistent/chronic pelvic pain and endometriosis is outlined in this article.