Pain Characteristics, Fear-avoidance Variables, and Pelvic Floor Function as Predictors of Treatment Response to Physical Therapy in Women With Provoked Vestibulodynia

Internet-based treatment for provoked vulvodynia: factors associated with treatment outcomes

INTRODUCTION

Previous research has indicated that internet-based Acceptance and Commitment Therapy (ACT) can reduce pain during intercourse and increase pain acceptance in individuals with provoked vulvodynia, but the factors associated with treatment outcomes remain unknown.

AIM

This study aimed to investigate factors associated with changes in pain acceptance following an internet treatment based on ACT.

METHODS

This exploratory study used data from the EMBLA study, a multicenter randomized controlled trial that investigated the effects of internet-based ACT for provoked vulvodynia. The examined factors included sociodemographics, medical history, pain and sexual behavior, and psychosocial characteristics. Linear regression analysis was employed to assess the association of these factors with pain acceptance, including interaction effects. Results were adjusted for multiple testing using Bonferroni correction.

OUTCOMES

The outcome measure was pain acceptance assessed on the scale Chronic Pain Questionnaire-Revised, which comprises two sub-scales: activity engagement and pain willingness.

RESULTS

Before adjustment, greater improvement in overall pain acceptance and the subscale activity engagement was seen participants in the intervention group who had a history of physical violence or sexual assault. Increased time spent on the treatment platform per week was also associated with greater improvement in pain acceptance. Participants who reported gastrointestinal problems before the internet-based treatment showed better treatment outcomes in activity engagement. Previous contact with a psychologist or counselor was associated with less improvement in activity engagement. The intervention was less effective on the subscale pain willingness with increased age and for those reporting urinary problems. No associations remained statistically significant after adjustment for multiple testing.

CLINICAL IMPLICATIONS

Previous exposure to violence and sexual assault, concomitant gastrointestinal or urinary problems, and adherence to treatment should be further investigated in larger studies on factors associated with treatment outcomes after internet treatment based on ACT, especially regarding pain.

STRENGTHS AND LIMITATIONS

This was a novel and exploratory study and provides information for researchers in future investigations of how individual characteristics may influence treatment outcomes. A range of variables were explored in the models, underscoring the importance of future studies to strengthen the findings. One limitation concerns the sample size, which was fairly small considering the nature of the study.

CONCLUSION

After correcting for multiple testing, no factors were found to be statistically associated with changes in pain acceptance after the treatment.

Individualized multidisciplinary therapy for vulvodynia

OBJECTIVE

The main objective of this review was to develop strategies for individualizing multidisciplinary therapy for vulvodynia.

METHODS

We conducted two literature searches; the first one focused on clinical trials assessing vulvodynia treatments published after the recommendations of the expert committee of the Fourth International Consultation on Sexual Medicine. The second search targeted studies identifying predictive factors and mediators of vulvodynia treatments, published from the earliest date to October 2022.

RESULTS

Based on data from 55 relevant studies, we developed models of individualized multidisciplinary therapy targeting groups of women less responsive to multidisciplinary therapy (characterized by women with higher vulvar pain intensity, impaired sexual functioning, and vulvodynia secondary subtype) and to physical therapy, as an isolated treatment (characterized by women with increased pelvic floor muscle tone and vulvodynia primary subtype). Each individualized multidisciplinary therapy model comprises three components: psychotherapy, medical care, and physical therapy. These components provide distinct therapeutic modalities for distinct subgroups of women with vulvodynia; the women subgroups were identified according to the characteristics of women, the disease, partners, and relationships. Additionally, for women with provoked vestibulodynia who exhibit less benefits from vestibulectomy (such as those with higher levels of erotophobia, greater vulvar pain intensity, and the primary subtype) and encounter resistance to individualized multidisciplinary therapy, we suggest additional conservative treatments before performing vestibulectomy.

CONCLUSION

Our study is a pioneer in the development of models that allow the individualization of multidisciplinary therapy for vulvodynia and represents a significant advance in the clinical practice of gynecologists, physiotherapists, and psychologists.

Symptom-associated alterations in functional connectivity in primary and secondary provoked vestibulodynia

ABSTRACT

Primary provoked vestibulodynia (PVD) is marked by the onset of symptoms at first provoking vulvar contact, whereas secondary PVD refers to symptom onset after some period of painless vulvar contact. Different pathophysiological processes are believed to be involved in the development and maintenance of primary PVD and secondary PVD. The primary aim of this study was to test the hypotheses that the resting state functional connectivity of the brain and brain stem regions differs between these subtypes. Deep clinical phenotyping and resting state brain imaging were obtained in a large sample of a women with primary PVD (n = 46), those with secondary PVD (n = 68), and healthy control women (n = 94). The general linear model was used to test for differences in region-to-region resting state functional connectivity and psychosocial and symptom assessments. Direct statistical comparisons by onset type indicated that women with secondary PVD have increased dorsal attention-somatomotor network connectivity, whereas women with primary PVD predominantly show increased intrinsic resting state connectivity within the brain stem and the default mode network. Furthermore, compared with women with primary PVD, those with secondary PVD reported greater incidence of early life sexual abuse, greater pain catastrophizing, greater 24-hour symptom unpleasantness, and less sexual satisfaction. The findings suggest that women with secondary PVD show greater evidence for central amplification of sensory signals, whereas women with primary PVD have alterations in brain stem circuitry responsible for the processing and modulation of ascending and descending peripheral signals.