Predictors of Mucosal and Muscle Pain in Vulvodynia: A Cross-Sectional Analysis From the National Vulvodynia Registry

Pain with orgasm in endometriosis: potential etiologic factors and clinical correlates

BACKGROUND

Pelvic pain worsened by orgasm is a poorly understood symptom in patients with endometriosis.

AIM

To assess the prevalence of pelvic pain worsened by orgasm in patients with endometriosis and explore its association with potential etiologic factors, including pelvic floor myalgia, uterine tenderness and adenomyosis, and central nervous system sensitization.

METHODS

An analysis was done of a prospective data registry based at a tertiary referral center for endometriosis. Eligible participants were patients aged 18 to 50 years who were referred between January 1, 2018, and December 31, 2019, diagnosed with endometriosis, and subsequently underwent surgery at the center. Clinical features were compared between participants reporting worsening pelvic pain with orgasm and those without worsening pain with orgasm, including patient-reported variables, physical examination findings, and anatomic phenotyping at the time of surgery. Pelvic floor myalgia and uterine tenderness were assessed by palpation on pelvic examination, adenomyosis by ultrasound, and central nervous system sensitization via the Central Sensitization Inventory (range, 0-100).

OUTCOMES

Outcomes included pelvic or lower abdominal pain in the last 3 months that worsened with orgasm (yes/no).

RESULTS

Among 358 participants with endometriosis, 14% (49/358) reported pain worsened by orgasm while 86% (309/358) did not. Pain with orgasm was significantly associated with pelvic floor myalgia (55% [27/49] vs 35% [109/309]; Cohen's h = 0.40, P = .01) and higher scores on the Central Sensitization Inventory (mean ± SD, 53.3 ± 17.0 vs 42.7 ± 18.2; Cohen's d = 0.60, P < .001) but not with uterine tenderness or adenomyosis. Other clinical features associated with pain with orgasm were poorer sexual health (higher scores: deep dyspareunia, Cohen's h = 0.60; superficial dyspareunia, Cohen's h = 0.34; and Female Sexual Distress Scale-Revised, Cohen's d = 0.68; all P < .05) and poorer mental health (higher scores: Patient Health Questionnaire-9, 12.9 ± 6.7 vs 9.1 ± 6.3, Cohen's d = 0.59, P < .001; Generalized Anxiety Disorder-7, 9.4 ± 5.6 vs 6.8 ± 5.5, Cohen's d = 0.48, P = .002). Anatomic findings at the time of surgery did not significantly differ between the groups.

CLINICAL IMPLICATIONS

Interventions targeting pelvic floor myalgia and central nervous system sensitization may help alleviate pain worsened by orgasm in patients with endometriosis.

STRENGTHS AND LIMITATIONS

A strength is that pain worsened by orgasm was differentiated from dyspareunia. However, pain with orgasm was assessed by only a binary question (yes/no). Also, the study is limited to a single center, and there were limited data on sexual function.

CONCLUSION

Pelvic pain exacerbated by orgasm in people with endometriosis may be related to concurrent pelvic floor myalgia and central sensitization.

A scoping review: the psychosocial barriers that exist for people with vulvodynia

BACKGROUND

Vulvodynia, including generalized vulvodynia and vestibulodynia, affects at least 8% to 16% of people with a vulva and may have a negative impact on one's quality of life, psychological health, interpersonal relationships, and individual behaviors.

AIM

The aim of this scoping review is to synthesize and analyze the emerging literature of vulvodynia research while determining what psychosocial barriers exist for people with vulvodynia.

METHODS

A rigorous literature search was completed in 6 databases: PubMed, CINAHL, Embase, Web of Science, APA PsycInfo, and Academic Search Premier. Key terms and subject headings, including Medical Subject Headings, were used to systematically search these databases. Two reviewers were utilized to assess the reference list and reduce bias.

OUTCOMES

A total of 671 articles were discovered during the search, which was narrowed down to 73 that included at least 1 psychosocial barrier that patients experience in the United States and Canada.

RESULTS

The findings of the literature search revealed the various psychosocial barriers that patients commonly face: pain, anxiety, depression, catastrophization, fear, lack of self-efficacy, low desire and arousal, negative body image, stigma, distress, posttraumatic stress disorder, child maltreatment and abuse, mistrust, invalidation and isolation, low levels of self-compassion, negative partner support, low relationship satisfaction, lack of physical affection, emotional regulation, and avoidance and lack of approach goals. In addition to psychosocial barriers, structural determinants and environmental barriers-such as delayed diagnosis, low health literacy, cost, transportation, and racial disparities-adversely affected individuals with vulvodynia.

CLINICAL IMPLICATIONS

This review should serve as a guide for researchers, medical providers, and program developers to understand all the barriers that patients may face.

STRENGTHS AND LIMITATIONS

This review comprehensively highlights existing psychological barriers while promoting structural and environmental barriers that people with vulvodynia face. More research and greater emphasis on the underlying physical conditions that contribute to vulvodynia are needed to effectively educate providers and patients on vulvar pain conditions.

CONCLUSIONS

This scoping review highlights the numerous barriers faced by patients with vulvodynia and serves to improve education for patients and providers to achieve earlier diagnoses and better patient outcomes.

Vaginal Microbiome Is Associated With Vulvodynia, Vulvar Pain Syndrome: A Case-Control Study

INTRODUCTION

Vulvodynia, vulvar pain syndrome, is defined as vulvar pain of at least a 3-month duration without a clear identifiable cause, which may have associated factor and the etiology and treatment of this challenging disease is still unclear. Dyspareunia is a relevant symptom of patients with vulvodynia. Vaginal microbiome has known an important role in local immune-inflammatory responses and it may be important pathogenic mechanism in vulvodynia.

AIM

The objective of this study was to investigate the association of vaginal microbiome and vulvodynia.

METHODS

We analyzed the microbial compositions of the vestibule and vagina among women with clinically diagnosed vulvodynia (n = 22) and age-matched healthy controls (n = 22) without vulvodynia. The compositions of bacterial microbiomes were compared by pyrosequencing of the 16S rRNA.

MAIN OUTCOME MEASURE

Vaginal microbiome alpha and beta diversity were assessed using the Shannon diversity index and Heat map. Linear discriminant analysis effect size was used to find out marker for vulvodynia.

RESULTS

There were no significant differences in the age, duration of marriage, history of gynecologic surgery, parity, and menopause status between cases and controls. A total of 1,661,934 high-quality pyrosequencing reads was obtained to evaluate bacterial diversity, and 50,246 unique sequences represented all phylotypes. The type and mean number of the genera were not different between cases and controls. However, the most predominant phyla of bacteria were significantly different between cases and controls. 3 phyla (Firmicutes, Actinobacteria, and Tenericutes) and 11 genera including Gardnerella, Ureaplasma, Achromobacter, Mycoplasma, and Bifidobacteria were significantly more prevalent in cases than in controls (P < .05). Linear discriminant analysis effect size analysis suggest the Bifidobacterium, Mycoplasma, and Fenollaria species can be potential markers for vulvodynia.

CONCLUSION

Our results suggest the differences in vaginal microbiome can be associated with the vulvodynia. Park SY, Lee ES, Lee SR, et al. Vaginal Microbiome Is Associated With Vulvodynia, Vulvar Pain Syndrome: A Case-Control Study. Sex Med 2021;9:100314.