The psychological profile of women presenting to a multidisciplinary clinic for chronic pelvic pain: high levels of psychological dysfunction and implications for practice

Obstetric outcomes of nulliparous women with pelvic pain undergoing fertility treatment

RESEARCH QUESTION

Is there any association between pelvic pain and primary caesarean delivery for patients undergoing assisted reproductive technology (ART) treatment?

DESIGN

Retrospective cohort study of nulliparous patients with singleton pregnancies who underwent ART treatment and achieved a live birth between 2012 and 2020. Cases included patients diagnosed with pelvic pain. A 3:1 ratio propensity-score-matched population of patients without a history of pelvic pain was included as the control group. Comparative statistics were performed using chi-squared test and Student's t-test. A multivariate regression analysis was conducted to evaluate the association between pelvic pain and mode of delivery.

RESULTS

One hundred and seventy-four patients with pelvic pain were compared with 575 controls. Patients with pelvic pain reported a significantly longer duration of infertility compared with controls (18.98 ± 20.2 months versus 14.06 ± 14.06 months; P = 0.003). Patients with pelvic pain had a significantly higher rate of anxiety disorders (115 ± 21.9 versus 55 ± 31.6; P = 0.009) and use of anxiolytics at embryo transfer (17 ± 3.2 versus 12 ± 6.9; P = 0.03) compared with controls. In addition, patients with pelvic pain had a higher rate of primary caesarean delivery compared with controls (59.8% versus 49.0%; P = 0.01). After adjusting for multiple variables, a significant association was found between pelvic pain and increased odds of primary caesarean delivery (adjusted OR 1.48, 95% CI 1.02-2.1).

CONCLUSION

Patients with pelvic pain have significantly higher odds of primary caesarean delivery compared with patients without a history of pelvic pain. The infertility outpatient setting may be uniquely positioned to identify patients at risk for undergoing primary caesarean delivery, and could facilitate earlier intervention for pelvic floor physical therapy during the preconception and antepartum periods.

Evidence for the role of multidisciplinary team care in people with pelvic pain and endometriosis: A systematic review

BACKGROUND

Endometriosis is a chronic, inflammatory condition characterised by the presence of endometrial-like tissue outside the uterine cavity. Given the multi-system nature of the disease and the potential for significant negative impact on quality of life, there has been a long-standing recognition of the need for multidisciplinary care for people with endometriosis. However, there is paucity to the data supporting this approach, and much of the evidence is anecdotal.

AIM

This systematic review aims to describe recent evidence-based models and patient-centred perspectives of multidisciplinary care for endometriosis, to improve understanding of the role of an integrated, multidisciplinary team in effectively addressing patients' care needs.

MATERIALS AND METHODS

PubMed, Medline, Embase and Web of Science were searched for relevant articles published between 1 January 2010 to 7 July 2022.

RESULTS

Nineteen studies met the inclusion and exclusion criteria and pinpointed a multidisciplinary team consisting of gynaecologists, pain specialists, nurses, physiotherapists, psychologists, sex therapists, nutritionists, complementary medicine practitioners, and social workers to be most commonly utilised in holistically managing people with pelvic pain and endometriosis. Furthermore, patient perspectives on care highlighted the need for reliable information, respect and validation of experiences or preferences, discussion of long-term treatment plans and social and emotional supports.

CONCLUSION

The trend for multidisciplinary team care for people with endometriosis is growing. Further consumer-driven clinical studies and outcome evaluations need to be conducted to determine the effect of multidisciplinary care on improvements to quality of life for people living with endometriosis and or pelvic pain.

Endometriosis, chronic pain, anxiety, and depression: A retrospective study among 12 million women

BACKGROUND

There is a lack of information regarding the impact of the physical symptoms associated with endometriosis and chronic pain on the mental health and well-being of affected women. Thus, our study aimed to evaluate the relationship between endometriosis, chronic pain, anxiety, and depression.

OBJECTIVE

Our study aimed to evaluate the relationship between endometriosis, chronic pain, and mental health disorders among women registered in a large database until 2014.

STUDY DESIGN

This was a retrospective population-based study involving 12,904,324 hospitalized women from the Healthcare Cost and Utilization Project (HCUP) database between 2007 and 2014. We calculated the prevalence of chronic pain, endometriosis, anxiety, and depression during the study period. We used multivariate logistic regression to examine the relationship between these variables.

RESULTS

An upward pattern was noted in the prevalence of chronic pain, while an opposite trend was seen for endometriosis during the study period. After adjusting for sociodemographic characteristics and comorbidities, including depression, the highest odds ratio of experiencing anxiety appeared in the group with both chronic pain and endometriosis (OR = 2.719, 95 % CI 2.481-2.979).

LIMITATIONS

HCUP is a cross-sectional administrative database that does not link patients' records over the years. Thus, we could not establish any temporal association between endometriosis, chronic pain, anxiety, and depression.

CONCLUSION

Potential associations were identified between endometriosis, with and without chronic pain, anxiety, and depression. We recommended that clinicians provide proper medical management of endometriosis-related pain through symptom management and adequate counseling for those suffering from anxiety and depression.

Preoperative quality of life at time of gynecologic surgery: considerations for postoperative management

BACKGROUND

Patients presenting for gynecologic surgery are a heterogeneous group. Preoperative quality of life may be a useful tool to guide postoperative management.

OBJECTIVE

This study aimed to examine the key drivers of preoperative quality of life to improve counseling and postoperative management.

STUDY DESIGN

This study analyzed preoperative survey results from 154 participants using the following surveys: National Institutes of Health Toolbox Global Health v1.2, Gastrointestinal: Gas and Bloating v1.1 13a, Gastrointestinal: Diarrhea v1.0 6a, and Sexual Function and Satisfaction Brief Profile (Female) v2.0, Perceived Stress Scale, the Vaginal Assessment Scale, and the Vulvar Assessment Scale. Survey results in the form of T-scores were compared in patients with endometrial cancer and patients with benign gynecologic conditions using the Kruskal-Wallis test. The multivariate analysis was performed using linear regression to adjust the comparisons for age, body mass index, and comorbidity.

RESULTS

Of the 154 patients, preoperative diagnosis was benign in 66% (n=102) and endometrial cancer in 34% (n=52). Patients with endometrial cancer were more likely to be older, non-White, in lower income brackets, have higher body mass index, and be postmenopausal (P<.05). Although preoperative global health scores were similar between benign and malignant cases (P>.05), when adjusted for age, the differences in global health quality of life between patients with benign gynecologic conditions and those with endometrial cancer became significant, because the endometrial cancer group was older than the benign group (P<.05). However, when adjusting for age, body mass index, and comorbidities (hypertension and diabetes), the differences were no longer significant (P>.05). Sexual interest was decreased in the patients with endometrial cancer both in the unadjusted and adjusted model; and vulvar complaints became significantly different between the groups when controlling for body mass index, age, and comorbidities (P<.05).

CONCLUSION

Despite substantial differences in preoperative diagnosis, preoperative quality of life is highly influenced by age, body mass index, and comorbidities. Therefore, these factors should be explored in surgical outcomes and postoperative management trials.

Symptoms of complex pelvic pain: A survey in three cohorts of women

INTRODUCTION

There has been increased interest in addressing chronic pelvic pain and its complexity in women. The often multifactorial etiology of chronic pelvic pain and its heterogeneous presentation, however, make the condition challenging to manage. Overlap with other pain-related conditions is frequently reported, and chronic pelvic pain may impact sexual function. Nevertheless, little is known about the symptom burden of chronic pelvic pain and more complex pelvic pain in different groups of women. Thus, the aim of our study was to use a newly validated Norwegian version of the Amsterdam Complex Pelvic Pain Symptom Scale (ACPPS) to describe and compare the symptom severity of complex pelvic pain in three cohorts of women and to assess associations between demographic and gynecological characteristics and the severity of the condition.

MATERIAL AND METHODS

In our cross-sectional study, we collected self-reported data from patients referred to gynecological outpatient clinics, members of vulvodynia or endometriosis patient associations, and healthy volunteers. The 397 participants (47% response rate) completed an online survey about their demographic and gynecological characteristics and symptoms related to complex pelvic pain, including the Norwegian ACPPS. Score means on questionnaires, with standard deviations and 95% confidence intervals, were recorded. We used Pearson's chi-square test, Analysis of variance and multivariable linear regression were used to assess associations of demographic and gynecological characteristics with ACPPS scores.

RESULTS

Members of the patient associations had significantly higher self-reported symptom burden than patients and volunteers. Symptom burden was lower among older and postmenopausal women, and unemployed women scored higher than employed ones. Especially high scores on the ACPPS were found among women with complaints of chronic pelvic pain, at least moderate pelvic pain intensity, and/or chronic vulvar pain. Women who had experienced sexual assault and/or reported low sexual function also reported high scores. In multivariable regression, fibromyalgia, low mental health and past sexual assault were found to be associated with high scores on the ACPPS.

CONCLUSION

Many women in our study reported complex pelvic pain, and overlap with other pain-related conditions, low mental health and past sexual assault was associated with high symptom burden. Those findings support taking a biopsychosocial approach to treating women who present with such complaints.

Pelvic Pain, Mental Health and Quality of Life in Adolescents with Endometriosis after Surgery and Dienogest Treatment

BACKGROUND

Diagnostic and treatment delays have caused significant impacts on the physical and emotional well-being of adolescents with endometriosis, though such research is limited. This study aimed to assess the effects of one-year dienogest therapy on the clinical picture, pain patterns, psycho-emotional status, and quality-of-life indicators in adolescents with endometriosis after surgical treatment.

METHODS

The study enrolled 32 girls aged 13-17 with peritoneal endometriosis to analyze one-year dynamics of the Visual Analog Scale (VAS), McGill Pain Questionnaire, Beck Depression Scale (BDI), Hospital Anxiety and Depression Scale (HADS), Spielberger State-Trait Anxiety Inventory (STAI) and SF-36 quality-of-life survey scores along with clinical and laboratory indicators before surgery and after one-year dienogest therapy.

RESULTS

The therapy provided a significant alleviation of endometriosis-associated clinical symptoms, including dysmenorrhea, pelvic pain, gastrointestinal/dysuria symptoms, decreased everyday activity (<0.001), a decrease in anxiety/depression scores (BDI, HADS, STAI), and quality-of-life improvement (<0.001). These effects were accompanied by beneficial dynamics in hormone and inflammatory markers (prolactin, cortisol, testosterone, estradiol, CA-125, neutrophil/lymphocyte ratio; <0.005) within reference ranges. A low body mass index and high C-reactive protein levels were associated with higher VAS scores; a high estradiol level was a factor for anxiety/depression aggravation (<0.05).

CONCLUSIONS

Dienogest, after surgical treatment, significantly improved quality of life and reduced pain symptoms while showing good tolerability and compliance, and reasoning with timely hormonal therapy in adolescents with endometriosis.

Chronic Pelvic Pain Profiles in Women Seeking Care in a Tertiary Pelvic Pain Clinic

OBJECTIVE

Female chronic pelvic pain (CPP) has multiple pain generators and significant psychosocial sequalae. Biopsychosocial-based phenotyping could help identify clinical heterogeneity that may inform tailored patient treatment. This study sought to identify distinct CPP profiles based on routinely collected clinical information and evaluate the validity of the profiles through associations with social histories and subsequent health care utilization.

METHODS

Women (18-77 years, n = 200) seeking care for CPP in a tertiary gynecological pelvic pain clinic between 2017 and 2020 were included. Baseline data of pain intensity, interference, catastrophizing, acceptance, overlapping pelvic pain syndromes, and co-occurring psychiatric disorders were subject to a partition around medoids clustering to identify patient profiles. Profiles were compared across social history and subsequent treatment modality, prescribed medications, and surgeries performed.

RESULTS

Two profiles with equal proportion were identified. Profile 1 was vulvodynia and myofascial pelvic pain-dominant characterized by lower pain burden and better psychological functioning. Profile 2 was visceral pain-dominant featuring higher pain interference and catastrophizing, lower pain acceptance, and higher psychiatric comorbidity. Patients in Profile 2 had 2-4 times higher prevalence of childhood and adulthood abuse history (all P < .001), were more likely to subsequently receive behavioral therapy (46% vs 27%, P = .005) and hormonal treatments (34% vs 21%, P = .04), and were prescribed more classes of medications for pain management (P = .045) compared to patients in Profile 1.

CONCLUSIONS

Treatment-seeking women with CPP could be separated into two groups distinguished by pain clusters, pain burden, pain distress and coping, and co-occurring mental health disorders.

The role of catastrophizing in chronic cyclical pelvic pain: A systematic review and meta-analysis

BACKGROUND

Dysmenorrhea (painful menstrual cramps) is one of the most common gynecological complaints in women and girls. Dysmenorrhea may be a condition itself or a result of another medical condition, including endometriosis and chronic pelvic pain. Research examining the relationship between menstrual pain ratings and catastrophizing has produced mixed results.

OBJECTIVE

To review and meta-analyze the relationship between catastrophizing and pain ratings of chronic cyclical pelvic pain.

DESIGN

Cross-sectional, longitudinal, and intervention studies that reported the relationship between menstrual/pelvic pain and catastrophizing were included. Study populations had to include healthy menstruating persons or persons with a condition associated with cyclical pelvic pain including primary dysmenorrhea, endometriosis, and/or chronic pelvic pain.

DATA SOURCES AND METHODS

A systematic search of articles published since 2012 on PubMed, PsychInfo, CINHAL, and Medline was conducted in January and rerun in November of 2022. Search terms included cyclical pelvic pain, dysmenorrhea, endometriosis, pelvic pain, and catastrophizing. Data extraction was completed independently by two extractors and cross-checked for errors. A random-effects meta-regression was used to synthesize the data using restricted maximum likelihood.

RESULTS

Twenty-five studies examining 4,540 participants were included. A random effects model found a meta-correlation between catastrophizing and pain of r = .31 (95% confidence interval: .23-.40) p < .001. Heterogeneity was large and significant (I2 = 84.5%, Q(24) = 155.16, p < .001). Studies that measured general pelvic pain rather than cyclical pelvic pain specifically and those that used multi-item rather than single-item measures of pain had significantly higher correlations. Age and depression did not moderate the relationship between catastrophizing and pain.

CONCLUSION

A systematic review and meta-analysis found that catastrophizing had a small but significant positive association with pain ratings. Patients experiencing cyclical pelvic pain may benefit from interventions targeting the psychological management of pain.

REGISTRATION

This meta-analysis was registered in PROSPERO on 14 January 2022. Registration number: CRD42022295328.

A Multidisciplinary Pelvic Pain Clinic: Integrated Health Psychology in a Specialty Care Setting

Purpose: Chronic pelvic pain (CPP) is a relatively common health problem, impacting around 25 million women globally. This study details the development of a multidisciplinary women's CPP clinic at a major U.S. academic medical center, and examines associations between mood, pain symptoms, and trauma history. Materials and Methods: Data were collected from 96 subjects, including self-report measures (Patient Health Questionnaire-9, Generalized Anxiety Disorder-7, and Brief Trauma Questionnaire), pain intensity ratings, psychiatric diagnoses, and relevant medical history. Results: Most subjects reported at least one traumatic experience. Nearly half of subjects met criteria for an anxiety disorder and/or a depressive disorder. Most subjects were diagnosed with pelvic floor dysfunction, and more than half were referred to physical therapy. Women with abdominal/pelvic surgery history reported more traumatic experiences than women without surgical history. Women with a history of sexual abuse reported trying more medications and seeking care from a greater number of providers. Many reported pain duration of >2 years. Conclusions: Study findings related to mental health and trauma support a multidisciplinary CPP approach that includes a clinical health psychology component. Future research may investigate the therapeutic processes that apply to this population to identify targeted efficacious interventions.

Psychological Profile in Women with Chronic Pelvic Pain

(1) Background: Chronic Pelvic Pain (CPP) is a prevalent medical condition with a complex treatment due to different variables that influence its clinical course. (2) Methods: Psychological variables such as depression, anxiety, catastrophizing or neuroticism have been described as influencing CPP. This is a cross-sectional study of 63 patients with CPP sent for a psychological evaluation due to participation in group therapy for CPP. The main purpose of this study was to characterize the baseline psychological characteristics of women with CPP. The NEO Five Factor Inventory (NEO-FFI), State and Trait Anxiety Inventory (STAI), Beck Depression Inventory-Fast Screen (BDI-FS), Pain Catastrophizing Scale (PCS) and Chronic Pain Acceptance Questionnaire (CPAQ) were performed. (3) Results: The personality profile of patients (NEO FFI) shows high neuroticism, low extraversion and low conscientiousness. The 25.4% of patients had moderate or severe depression according to BDI-FS results, almost half of the patients had high levels of anxiety trait (>P75, 49.2%) and more than half the patients had high levels of anxiety state (>P75, 59.5%). Punctuations of PCS and CPAQ are similar to patients with fibromyalgia. (4) Conclusions: CPP is associated with high levels of depression, anxiety, neuroticism, catastrophizing and low pain acceptance. It is important to develop interventions that can modify these psychological factors in order to improve the clinical course of CPP.

Current Challenges in the Management of Chronic Pelvic Pain in Women: From Bench to Bedside

Chronic pelvic pain (CPP) affects a significant proportion of women worldwide And has a negative impact on several aspects of these women’s lives including mental health, work, relationships and sexual function, among others. This set of factors ultimately reflects negatively on quality Of life. The physiopathology of CPP is complex and remains to be fully clarified; however, recent advances have increased understanding of the mechanisms involved in chronic pain in general, and more specifically, CPP. Nonetheless, even when a detailed clinical history is obtained, meticulous physical examination is performed and imaging resources are appropriately used, the organic cause of the pain may still fail to be identified in a substantial number of women with CPP. Management of CPP may therefore be challenging. This narrative review was aimed at adding to the available literature on the subject, presenting and discussing the principal characteristics of CPP in women. The paper highlights gaps in the literature while providing the most up-to-date evidence associated with the physiopathology and classification of pain, its diagnosis and treatment. In addition, current challenges in the management of women with CPP are discussed.

An interdisciplinary chronic pain rehabilitation program effectively treats impairment in sexual function, depression, alexithymia, and pain in women with chronic pelvic pain

PURPOSE

Chronic pelvic pain (CPP) in women is often associated with marked emotional distress and disability, with particular impairments in sexual functioning. Research supports the efficacy of interdisciplinary chronic pain rehabilitation programs (ICPRPs) in treating chronic pain, however less is known about their utility in CPP.

METHODS

This retrospective study examined pain-related sexual impairment, emotional symptoms, and pain severity in CPP patients before and after completing a 3-4 week ICPRP. Predictors of post-treatment sexual impairment were also investigated. Participants included 58 female CPP patients and 58 age-matched females with non-pelvic chronic pain (NPCP).

RESULTS

All participants reported robust improvements across outcome measures. Women with CPP reported greater pre- and post-treatment impairment in sexual function than NPCP patients, despite significant treatment-related improvements. In contrast, CPP patients also reported higher levels of depression at baseline but showed greater treatment related-improvements. In participants with CPP, treatment-related improvements in depression, alexithymia, and pain severity significantly explained decreases in pain-related sexual impairment following treatment, whereas none of these variables explained sexual impairment outcomes in women with NPCP.

CONCLUSION

Results demonstrate that ICPRPs can effectively treat CPP, particularly through changes in depression and alexithymia. Future research should examine whether specific interventions can be added in ICPRPS to address CPP-related sexual impairment.

Peripheral, Central, and Cross Sensitization in Endometriosis-Associated Pain and Comorbid Pain Syndromes

Endometriosis-associated pain and the mechanisms responsible for its initiation and persistence are complex and difficult to treat. Endometriosis-associated pain is experienced as dysmenorrhea, cyclical pain related to organ function including dysuria, dyschezia and dyspareunia, and persistent pelvic pain. Pain symptomatology correlates poorly with the extent of macroscopic disease. In addition to the local effects of disease, endometriosis-associated pain develops as a product of peripheral sensitization, central sensitization and cross sensitization. Endometriosis-associated pain is further contributed to by comorbid pain conditions, such as bladder pain syndrome, irritable bowel syndrome, abdomino-pelvic myalgia and vulvodynia. This article will review endometriosis-associated pain, its mechanisms, and its comorbid pain syndromes with a view to aiding the clinician in navigating the literature and terminology of pain and pain syndromes. Limitations of our current understanding of endometriosis-associated pain will be acknowledged. Where possible, commonalities in pain mechanisms between endometriosis-associated pain and comorbid pain syndromes will be highlighted.

Pain catastrophizing is associated with pain thresholds for heat, cold and pressure in women with chronic pelvic pain

Background and aims Psychological traits such as pain catastrophizing may play a role in the development of chronic pelvic pain (CPP). Pain catastrophizing is the tendency to amplify negative cognitive and emotional pain processes. The Pain Catastrophizing Scale (PCS) assesses elements of pain catastrophizing divided into three subgroups of factors (rumination, helplessness and magnification). Previous studies have shown associations between CPP and increased pain sensitivity, widespread generalized hyperalgesia, and decreased pain thresholds, but the relation between pain catastrophizing and specific pain thresholds has not yet been widely examined in this patient group. The aims of this study were (a) to determine if catastrophizing is increased in women with CPP compared with pain-free women, (b) to assess the importance of pain catastrophizing, psychological distress variables, and subjective pain sensitivity for pain thresholds of heat, cold and pressure in these two groups, and (c) to determine whether psychological variables or pain thresholds best contribute to the differentiation between CPP and controls. Methods Thirty-seven women with chronic pelvic pain who underwent diagnostic laparoscopy on the suspicion of endometriosis participated along with 55 healthy and pain-free controls. All underwent quantitative sensory testing on six locations on the body to determine heat (HPT), cold (CPT) and pressure (PPT) pain thresholds. The PCS, the Pain Sensitivity Questionnaire (PSQ), the Hospital Anxiety Depression Scale, (HADS) demographics and clinical data were collected prospectively. Principal component analysis and orthogonal partial least square regressions were used to assess the associations between PCS scores and pain thresholds. Results The women with CPP scored significantly higher on PCS than the healthy controls. PCS-helplessness, PCS-rumination and HADS-depression were significantly associated with pain thresholds for the whole group. In the CPP group, PCS-rumination, body mass index and PSQ were significant regressors for HPT and CPT. The PCS and the HADS subscales were strongly intercorrelated in women with CPP and were stronger regressors of group membership than the three pain thresholds. In the group of healthy control women, no relationships were found to be significant. The psychological variables were somewhat stronger significant regressors than pain thresholds (also significant) for group membership. Conclusions Women with CPP have significantly higher pain catastrophizing scores than women without CPP. The pain catastrophizing rumination factor is significantly associated with pain thresholds of heat and cold in CPP women. PCS and HADS are strongly intercorrelated and PSQ correlates positively with these variables. It seems that the psychological variables are important for group differentiation. Implications The results clearly indicate the need for a multimodal assessment (bio-psycho-social) of CPP patients including psychological symptoms such as catastrophizing, anxiety and depression. The registration of semi-objective pain thresholds captures both specific pain sensitivity information (mechanical pressure, cold or heat) and the degree of wide spread pain hypersensitivity. There is a need for future larger studies investigating whether certain profiles in the clinical presentations (including pain thresholds and psychological variables) are associated with outcomes after different types of interventions.

A systematic review and meta-analysis of the Endometriosis and Mental-Health Sequelae; The ELEMI Project

Background:

It is important to evaluate sequalae for complex chronic health conditions such as endometriosis and mental health disorders. Endometriosis impacts 1 in 10 women. Mental health outcomes can be a primary determinant in many physical health conditions although this is an area not well researched particularly in women’s health. This has been problematic for endometriosis patients in particular, who report mental health issues as well as other key comorbidities such as chronic pelvic pain and infertility. This could be partly due to the complexities associated with comprehensively exploring overlaps between physical and mental health disorders in the presence of multiple comorbidities and their potential mechanistic relationship.

Methods:

In this evidence synthesis, a systematic methodology and mixed-methods approaches were used to synthesize both qualitative and quantitative data to examine the prevalence of the overlapping sequalae between endometriosis and psychiatric symptoms and disorders. As part of this, an evidence synthesis protocol was developed which included a systematic review protocol that was published on PROSPERO (CRD42020181495). The aim was to identify and evaluate mental health reported outcomes and prevalence of symptoms and psychiatric disorders associated with endometriosis.

Findings:

A total of 34 papers were included in the systematic review and 15 were included in the meta-analysis. Anxiety and depression symptoms were the most commonly reported mental health outcomes while a pooled analysis also revealed high prevalence of chronic pelvic pain and dyspareunia.

Interpretation:

It is evident that small-scale cross-sectional studies have been conducted in a variety of settings to determine mental health outcomes among endometriosis patients. Further research is required to comprehensively evaluate the mental health sequalae with endometriosis.

Efficacy of capacitive resistive monopolar radiofrequency in the physiotherapeutic treatment of chronic pelvic pain syndrome: study protocol for a randomized controlled trial

BACKGROUND

Chronic pelvic pain syndrome (CPPS) is a multifactorial disorder that affects 5.7% to 26.6% of women and 2.2% to 9.7% of men, characterized by hypersensitivity of the central and peripheral nervous system affecting bladder and genital function. People with CPPS have much higher rates of psychological disorders (anxiety, depression, and catastrophizing) that increase the severity of chronic pain and worsen quality of life. Myofascial therapy, manual therapy, and treatment of trigger points are proven therapeutic options for this syndrome. This study aims to evaluate the efficacy of capacitive resistive monopolar radiofrequency (CRMRF) at 448 kHz as an adjunct treatment to other physiotherapeutic techniques for reducing pain and improving the quality of life of patients with CPPS.

METHODS

This triple-blind (1:1) randomized controlled trial will include 80 women and men with CPPS. Participants will be randomized into a CRMRF activated group or a CRMRF deactivated group and receive physiotherapeutic techniques and pain education. The groups will undergo treatment for 10 consecutive weeks. At the beginning of the trial there will be an evaluation of pain intensity (using VAS), quality of life (using the SF-12), kinesiophobia (using the TSK-11), and catastrophism (using the PCS), as well as at the sixth and tenth sessions.

DISCUSSION

The results of this study will show that CRMRF benefits the treatment of patients with CPPS, together with physiotherapeutic techniques and pain education. These results could offer an alternative conservative treatment option for these patients.

TRIAL REGISTRATION

ClinicalTrials.gov NCT03797911 . Registered on 8 January 2019.

Strength Exercise Has Different Effects on Pressure Pain Thresholds in Women with Endometriosis-Related Symptoms and Healthy Controls: A Quasi-experimental Study

OBJECTIVE

To evaluate the influence of strength exercises on remote pain sensitivity in women with endometriosis-related symptoms.

DESIGN

A quasi-experimental study.

SETTING

University Hospital, a tertiary health unit.

SUBJECTS

Twenty-one women with endometriosis-related symptoms and 21 healthy women provided written informed consent.

METHODS

The participants performed weekly exercise sessions on an extensor chair for four consecutive weeks. An electronic algometer was used to measure the pressure pain thresholds on the nondominant forearm. Heart rate and blood pressure were measured using a digital device. All measurements were taken before, immediately after, and 10 and 20 minutes after the exercise series.

RESULTS

Women with endometriosis-related symptoms had lower pain thresholds. Pressure pain thresholds increased immediately after exercise in healthy women, returning to baseline level 20 minutes after exercise. Women with endometriosis-related symptoms did not present significant pressure pain threshold alterations after exercise. However, they had a higher heart rate and systolic, diastolic, and average blood pressure than healthy women at all the timepoints. There were no consistent correlations between pressure pain thresholds and heart rate or blood pressure.

CONCLUSIONS

The strength exercise regimen used in this study increased pain thresholds in healthy women but not in women with endometriosis-related painful symptoms. The maintenance or even worsening of pain perception after exercise in women with persistent pain, such as those with endometriosis, may limit their adherence to a physical training program, which in turn could prevent them from experiencing the long-term beneficial effects of exercise.

Clinical Outcomes of a Multidisciplinary Female Chronic Pelvic Pain Program

OBJECTIVE

The aim of this study was to describe patient-reported longitudinal outcomes in a multidisciplinary female chronic pelvic pain (CPP) program.

METHODS

We conducted a retrospective cohort study for women cared for in a tertiary, multidisciplinary, female (CPP) program between 2012 and 2017. Patient demographics were collected from electronic medical records. Patients completed the numerical rating scale for pain, Pain Disability Index (PDI), and Patient Global Impression of Improvement scale at each visit. Mixed-effects models were used to assess change in patient responses over time.

RESULTS

Patients (N = 317) with a mean age of 44.3 years (SD, 14.6) and median duration of symptoms of 3 years (interquartile range, 1.0-7.0) were assessed in this analysis. The primary diagnosis was pelvic floor myofascial pain (67%). On multivariable analysis, numerical rating scale scores decreased by -0.11 point [95% confidence interval (CI), -0.20 to -0.01] every 3 months (P = 0.03). On multivariable analysis, total PDI score decreased by -0.88 point (95% CI, -1.43 to -0.33) (P = 0.003), and PDI sexual subscores decreased by -0.29 point (95% CI, -0.44 to -0.14) (P < 0.001) every 3 months. A higher (worse) Patient Global Impression of Improvement score was associated with a higher (worse) PDI score at follow-up (odds ratio, 1.04; 95% CI, 1.01-1.07; P = 0.01).

CONCLUSIONS

Patients in a multidisciplinary CPP program demonstrated improvement over time in pain disability that was associated with an overall global impression of improvement.

Pelvic Girdle Pain, Hypermobility Spectrum Disorder and Hypermobility-Type Ehlers-Danlos Syndrome: A Narrative Literature Review

Pelvic girdle pain (PGP) refers specifically to musculoskeletal pain localised to the pelvic ring and can be present at its anterior and/or posterior aspects. Causes such as trauma, infection and pregnancy have been well-established, while patients with hypermobile joints are at greater risk of developing PGP. Research exploring this association is limited and of varying quality. In the present study we report on the incidence, pathophysiology, diagnostic and treatment modalities for PGP in patients suffering from Hypermobility Spectrum Disorder (HSD) and Hypermobility-Type Ehlers-Danlos Syndrome (hEDS). Recommendations are made for clinical practice by elaborating on screening, diagnosis and management of such patients to provide a holistic approach to their care. It appears that this cohort of patients are at greater risk particularly of mental health issues. Moreover over, they may require a multidisciplinary approach for their management. Ongoing research is still required to expand our understanding of the relationship between PGP, HSD and hEDS by appropriately diagnosing patients using the latest updated terminologies and by conducting randomised control trials to compare outcomes of interventions using standardised patient reported outcome measures.

The effect of endometriosis on sexual function as assessed with the Female Sexual Function Index: systematic review and meta-analysis

AIM

To systematically compare sexual function between non-treated women with and without endometriosis.

METHODS

A systematic review was performed on PubMed/Medline, Scopus, EMBASE, Web of Science and Cochrane Library databases searching studies that analyzed sexual function (assessed with the 19-item Female Sexual Function Index [FSFI]), and dyspareunia, chronic pelvic pain and dysmenorrhea (assessed with a visual analogue scale [VAS]) in women with and with endometriosis.

RESULTS

In 4 studies, non-treated women with endometriosis presented a higher risk of female sexual dysfunction (mean total FSFI score ≤ 26.55; OR = 2.38; 95% confidence interval [CI] = 1.12, 5.04). Although mean total FSFI scores were not significantly different between women with and without endometriosis (mean difference [MD] = -2.15; 95% CI -4.96, 0.67); all FSFI domain scores were significantly lower in women with endometriosis (n = 4 studies): desire (MD = -0.43; 95% CI -0.57, -0.19); arousal (MD = -0.66; 95% CI -1.15, -0.17); lubrication (MD = -0.41; 95% CI -0.79, -0.02); orgasm (MD = -0.40; 95% CI -0.73, -0.06); satisfaction (MD = -0.45; 95% CI -0.72, -0.18); and pain (MD = -1.03; 95% CI -1.34, -0.72). Women with endometriosis displayed differences (more severity) in terms of VAS scores (2 studies) for dyspareunia (MD = 1.88; 95% CI 0.38, 3.37) and chronic pelvic pain (MD = 2.92; 95% CI 1.26, 4.58); but not for dysmenorrhea.

CONCLUSION

Non-treated women with endometriosis displayed altered sexual function as evidenced by lower scores in all FSFI domains, and severity of dyspareunia and chronic pelvic pain.

Effects of a patient-centered program including the cumulative-complexity model in women with chronic pelvic pain: a randomized controlled trial

OBJECTIVES

To evaluate the effects of a patient-centered intervention including the cumulative-complexity model on quality of life related to health, coping behaviors, pain, self-perceived occupational performance and activity levels.

STUDY DESIGN

Randomized controlled trial. Forty-four women with a clinical diagnosis of chronic pelvic pain were randomized into two groups. Patients in the experimental group (n = 22) were included in a patient-centered intervention that involved relevant activities proposed by participants. Patients in the control group (n = 22) received a leaflet with information about chronic pelvic pain, physical activity, fear of movement, false beliefs, active lifestyle and behavioral advice.

MAIN OUTCOME MEASURES

The primary outcome measures were health-related quality of life assessed with the EuroQol-5D and coping behavior using the Coping Strategies Questionnaires. Secondary outcomes included severity of pain using a Visual Analogue Scale, self-perception of occupational performance using the Canadian Occupational Performance Measure and physical activity levels assessed by the International Physical Activity Questionnaire.

RESULTS

An analysis of variance with repeated measures showed, in the experimental group compared with the control group, significantly greater improvement from baseline to post-intervention in health-related quality of life (EuroQol-5D Visual Analog Scale values of 70.06 ± 16.44 vs. 57.38 ± 16.40, p = 0.026) and coping behavior (adaptive coping 113.00 ± 31.89 vs. 83.24 ± 16.69, p = 0.002). Pain, self-perception of performance and physical activity levels also significantly improved.

CONCLUSIONS

A patient-centered intervention considering the workload of patients and their capacity for performing health behaviors provides benefits regarding quality of life and coping behavior. Additionally, pain, self-perceived performance of relevant tasks and physical activity levels improved.

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OsteoLaus: Right to Exist and First Results Abstract. The OsteoLaus cohort included 1475 women aged 50 to 80 years between 2010 and 2012, and since followed every 2.5 years. The main goal is to better define osteoporosis and the prediction of fracture risk. Using the multiple data available in CoLaus/PsycoLaus, many analyses are being conducted to better understand the relationship between bone health and chronic disease.

[Not Available]

CME: Hypercalcemia Abstract. Hypercalcemia is defined as albumin-corrected calcium >2.6 mmol/l. Symptoms of hypercalcemia are mainly neurological-psychiatrical and cardiovascular. Severe symptomatic hypercalcemia is an emergency and requires an immediate therapy. At the same time, the underlying cause of hypercalcemia has to be identified and treated. Based on pathophysiology, hypercalcemia can be divided into four groups: parathyroid hormone dysfunction, disturbances of vitamin D metabolism, of bone metabolism or of renal calcium excretion. Medical history and specific laboratory diagnostics help to identify one of these groups and to make the correct final diagnosis.

Psychology of Chronic Pelvic Pain: Prevalence, Neurobiological Vulnerabilities, and Treatment

Patients with pelvic pain suffer from psychological conditions at a disproportionately high rate compared with their peers. We review environmental, genetic, inflammatory, and neurobiological factors that increase vulnerability to developing both of these conditions. We review treatment strategies for chronic pelvic pain in patients who have comorbid psychological conditions, including both nonpharmacologic and pharmacologic options.

Somatic and psychosocial determinants of symptom severity and quality of life in male and female patients with chronic pelvic pain syndrome

AIMS

To investigate the combined impact of somatic and psychosocial factors on symptom severity and physical and mental quality of life (QoL) in male and female patients with chronic pelvic pain syndrome (CPPS).

METHODS

We examined 234 patients aged 18 to 84 years attending an interdisciplinary outpatient clinic for patients with CPPS in Hamburg, Germany. Using self-reports, we assessed CPPS symptom severity (NIH-CPSI), with the female counterpart of each male anatomical site used in the questionnaire for women; physical and mental QoL (SF-12) as well as symptoms of depression (PHQ-9) and anxiety (GAD-7); pain catastrophizing cognitions (PCS); social support (F-SozU) and medication intake. The presence of trigger and tender points was assessed in a physiotherapy examination. Hierarchical multiple regression analysis was calculated to analyze the contribution of somatic and psychosocial variables on CPPS symptom severity. Analyses were repeated with physical and mental QoL as outcomes.

RESULTS

In the overall model, the intake of pain medication (B = 3.78, SE = 1.25, p = .006), the presence of depressive symptoms (B = 0.40, SE = 0.15, p = .01) and pain catastrophizing (B = 0.18, SE = 0.05, p = .001) significantly predicted CPPS symptom severity. Corresponding analyses revealed a differential pattern of factors predicting physical and mental QoL, whereas higher levels of depressive symptoms were consistently associated with diminished mental (B = -0.63; p < .001) and physical QoL (B = -0.85; p < .001).

CONCLUSION

Present results emphasize the importance of psychosocial factors, in particular of depression, in CPPS symptom severity and both physical and mental QoL and give support to an integrated treatment concept encompassing both psychological support and somatic aspects of the disease.

Characteristics of women with chronic pelvic pain referred to physiotherapy treatment after multidisciplinary assessment: a cross-sectional study

Background and aims

Chronic pelvic pain (CPP) in women is a complex condition that can seriously impact health and quality of life. Clinical guidelines for CPP place great demands on healthcare professionals, as they require both specialized knowledge about the pelvic area and knowledge of the mechanisms of chronic pain. To ensure best possible assessment and treatment of these women it is important to bring about more knowledge of the special CPP features. The purpose of this paper is to describe the characteristics of women with CPP evaluated at the University Hospital of North Norway, and further referred to physiotherapy. The frequency of having a history of abuse or previous pelvic surgery will also be reported, and analyses performed to investigate if subjective health status differs between women with and without these experiences.

Methods

We collected cross-sectional data from 62 women with CPP aged 20–65 (mean age 38.0), referred to physiotherapy after assessment by medical specialists. Data were collected by semi-structured interviews for demographic variables and medical history, and self-administered questionnaires on pain intensity, sexual function, urinary incontinence (UI), anal incontinence (AI), obstructed defecation syndrome (ODS), subjective health complaints (SHC) and symptoms of anxiety and depression.

Results

Pain duration of more than 10 years was reported by 42%, mean pain score was 4.7/10, and analgesics were used weekly by 48%. Previous pelvic or abdominal surgery was reported by 71%, and sick leave >12 weeks the last year by 34%. Reduced sexual desire was reported by 78%, dyspareunia by 73%, UI by 54%, AI by 23%, and obstructed defecation syndrome (ODS) by 34%. More than 90% reported musculoskeletal or pseudoneurologic complaints. Anxiety and depression scores defined as requiring treatment were reported by 40%. Abuse was reported by 50%, and associated with significantly more reports of ODS (p=0.02), more SHC (p=0.02) and higher anxiety scores (p=0.009). Analgesic use and sick leave were significantly higher both among women with a history of abuse (p=0.04 and p=0.005) and among those with previous surgery (p=0.04 and p=0.02). Women with previous surgery reported significantly lower pain intensity during intercourse than those without previous surgery (p=0.008).

Conclusions

Women with CPP have complex symptoms and high scores for both physical and psychological complaints. Women exposed to abuse have especially high scores related to analgesic use, sick leave, ODS, anxiety and SHC. Women with previous surgery report more analgesic use and sick leave, and lower pain intensity during intercourse, than those without previous surgery.

Implications

This study illustrates the complexity of CPP and highlights the need for health professionals to have specialized knowledge of the possible features of the condition. Previous abuse seems to be more associated with poor scores on several health outcomes than surgery, but this needs to be investigated further.

[Chronic Pelvic Pain Syndrome (CPPS) and Irritable Bowel Syndrome in Professional Overload]

Chronic Pelvic Pain Syndrome (CPPS) and Irritable Bowel Syndrome in Professional Overload Abstract. Chronic pelvic floor pain syndrome (CPPS) and irritable bowel syndrome are exclusion diagnoses and are subsumed under somatoform disorders in ICD-10. The CPPS includes a variety of synonyms and is treated in an interdisciplinary manner. The causes are manifold and subject to the bio-psycho-social aspects. Often the chronic pain syndrome has its origin in a somatic cause that continues despite healing of the lesion, possibly due to mental comorbidities and social stressors. Irritable bowel syndrome has changed in recent years from a psychiatric illness to a somatic disorder. This is because of the findings in neurogastroenterology, knowledge of the microbiome, food intolerances and the gut-brain axis. In chronic pain syndromes, pain retention and enhancement are influenced by psychosocial aspects. Therefore, an interdisciplinary therapy makes sense.

Predictors of pain, urinary symptoms and quality of life in patients with chronic pelvic pain syndrome (CPPS): A prospective 12-month follow-up study

OBJECTIVE

Chronic pelvic pain syndrome (CPPS) can affect both men and women and often causes substantial impairment to quality of life. Although cross-sectional studies have suggested that psychosocial aspects may constitute important factors in the etiology and maintenance of CPPS, longitudinal studies are rare. Therefore, the present study examines psychosocial factors as prospective predictors of pain intensity, urinary symptoms and impediments to quality of life in men and women with CPPS.

METHODS

Data were collected from patients during visits to a specialized, interdisciplinary outpatient clinic and after 12 months. Outcomes included pain intensity, urinary symptoms and impediments to quality of life, all of which were measured with the NIH-CPSI. Age, sex, depressive-anxious symptomatology (PHQ-ADS), pain catastrophizing (PCS), health anxiety (WI-7) and social support (FSozU) were examined as predictors in multivariate linear regressions.

RESULTS

Data from 109 patients (59.6% female; age M = 49.3, SD = 16.7) were analyzed. Pain severity (β = .30, p = .004), age (β = .22, p = .02), urinary symptoms (β = .24, p = .01) and depressive-anxious symptomatology (β = .29, p = .009) at baseline emerged as predictors of pain at follow-up. Urinary symptoms were predicted by urinary symptoms (β = .53, p < .001) and depressive-anxious symptomatology (β = .25, p = .01) at baseline; impediments to quality of life were predicted by depressive-anxious symptomatology (β = .27, p = .01).

CONCLUSION

Psychological factors, especially depressive-anxious symptomatology, predict CPPS-specific symptom severity and impediments to quality of life after 12 months and thus substantially contribute to the chronification of CPPS. It is recommended to address anxiety and depression in patients with CPPS as early as possible in biopsychosocially oriented treatment approaches.

Computed Tomography-Guided Superior Hypogastric Plexus Block for Secondary Dysmenorrhea in Perimenopausal Women

BACKGROUND Refractory abdominal pain during menstruation severely affects patients' quality of life and simultaneously places enormous psychological burdens on patients and their families. Several treatments for secondary dysmenorrhea are available; however, none can permanently treat all types of secondary dysmenorrhea. Since pain is transmitted by the nerves, we hypothesized that a neurolytic block could be used as a treatment for refractory abdominal pain during menstruation. We sought to investigate the therapeutic efficacy and safety of computed tomography (CT)-guided superior hypogastric plexus block for secondary dysmenorrhea. MATERIAL AND METHODS We performed CT-guided neurolytic block of the superior hypogastric plexus by bilaterally administering 4 mL of a dehydrated alcohol solution in 25 patients from January 2014 to February 2016. The degree of pain and its impact on the patients' mood and quality of life were evaluated using the visual analogue scale, Hospital Anxiety and Depression Scale, and 36-Item Short Form Survey before and after therapy, and the data were statistically analyzed using analysis of variance and t test. RESULTS The degrees of pain were significantly (p<0.05) decreased after neurolytic block (from 7.74±1.14 to 2.96±1.55). The patients showed significantly (p<0.05) less anxiety and improved bodily pain with mental health status. CONCLUSIONS Secondary dysmenorrhea can be effectively and safely treated with a neurolytic block of the superior hypogastric plexus.

Postpartum depression screening and pelvic floor symptoms among women referred to a specialty postpartum perineal clinic

BACKGROUND

Postpartum depression and pelvic floor disorders are both common conditions that affect women; however, the association between the 2 has yet to be determined.

OBJECTIVE

The aims of our study are to: (1) determine the prevalence of a positive postpartum depression screen in a specialty postpartum perineal clinic, and (2) identify risk factors for postpartum depression in this population.

STUDY DESIGN

A retrospective chart review was performed of 294 women referred to a specialty postpartum perineal clinic at the University of Michigan from March 30, 2012, through May 3, 2016. Women who completed a new patient intake form, including the Edinburgh Postnatal Depression Scale, were included. The prevalence of a positive Edinburgh Postnatal Depression Scale screen (≥10) was determined. Bivariate analyses were used to compare demographics, delivery characteristics, referral indications, and postpartum pelvic floor symptoms between women with and without a positive Edinburgh Postnatal Depression Scale screen. Significant variables identified in the analyses were then used to perform logistic regression to identify factors independently associated with a positive Edinburgh Postnatal Depression Scale screen.

RESULTS

In all, 15.6% (46/294) of women had a positive postpartum depression screen. Average age was 30.6 ± 4.8 years, average body mass index was 28.9 ± 5.06 kg/m², 68.0% (200/294) were Caucasian, 79.6% (234/294) were primiparous, and 86.0% (245/285) were breast-feeding. Using multivariable logistic regression, women with a positive postpartum depression screen had higher odds of being non-Caucasian (adjusted odds ratio, 2.72; 95% confidence interval, 1.27-5.832; P = .01), having a history of depression and/or anxiety (adjusted odds ratio, 2.77; 95% confidence interval, 1.23-6.24; P = .01), having been referred for pain (adjusted odds ratio, 2.61; 95% confidence interval, 1.24-5.49; P = .01), and reporting urinary incontinence during and after pregnancy (adjusted odds ratio, 3.81; 95% confidence interval, 1.57-9.25; P = .003).

CONCLUSION

Urinary incontinence during and after pregnancy and referral for pain were pelvic floor symptoms independently associated with a positive postpartum depression screen in women referred to a specialty perineal clinic. Therefore, consideration should be given to depression screening in women presenting with perinatal urinary incontinence and persistent postpartum pain, as these women may be at increased risk of developing postpartum depression.

Pain, psychosocial tests, pain sensitization and laparoscopic pelvic surgery

BACKGROUND AND AIMS

Individuals with non-acute pain are challenged with variable pain responses following surgery as well as psychological challenges, particularly depression and catastrophizing. The purpose of this study was to compare pre- and postoperative psychosocial tests and the associated presence of sensitization on a cohort of women undergoing elective laparoscopic surgery for non-acute pain defined as pain sufficient for surgical investigation without persistent of chronic pain.

METHODS

The study was a secondary analysis of a previous report (Am J Obstet Gynecol 2014 Oct;211(4):360-8.). The study was a prospective cohort trial of 77 women; 61 with non-acute pain and 16 women for a tubal ligation. The women had the following tests: Pain Disability Index, Pain Catastrophizing Scale, CES-D (Center for Epidemiologic Studies Depression Scale) depression scale and the McGill Pain Scale (short form) as well as their average pain score and the presence of pain sensitization. All test scores were correlated together and comparisons were done using paired t-test.

RESULTS

There were reductions in pain and psychosocial test scores that were significantly correlated. Pre-operative sensitization indicated greater changes in psychosocial tests.

CONCLUSIONS

There was a close association of tests of psychosocial status with average pain among women having surgery on visceral tissues. Incorporation of these tests in the pre- and postoperative evaluation of women having laparoscopic surgery appears to provide a means to a broader understanding of the woman's pain experience.

The effect of pelvic pain and urinary incontinence on women's self-rated health in northern Mexico

INTRODUCTION AND HYPOTHESIS

This study was designed to assess the effect of gynecological morbidities on Mexican women's self-rated health status and emotional health.

METHODS

A cross-sectional population-based study was conducted among Mexican women aged 25-54. We analyzed information on 1,303 participants living in Hermosillo, Mexico. Multiple logistic regression was used to assess the effect of having any one of three kinds of pelvic pain, urinary incontinence or both of these conditions on women's self-rated health. Additionally, we conducted analysis of variance and multiple linear regression to test the effect of these gynecological morbidities on women's self-reported emotional health.

RESULTS

Nearly one-third (31.2%) of participants rated their health as fair to very poor. Women reporting of at least one gynecological morbidity were more likely to rate their health as fair to very poor. In adjusted analyses, in addition to older age, low educational attainment, marital status other than single, lack of access to medical care, recurrent kidney infection, asthma, diabetes, and, reporting one or concurrent gynecological morbidities were associated with increased odds (adjusted odds ratios = 1.53-3.91) of reporting fair to very poor self-rated health. Women who did not report any gynecological morbidity had significantly lower mean scores for anxiety/fear 0.30 (±0.30) than women with two to four conditions (anxiety/fear 0.45 ± 0.31).

CONCLUSION

Pelvic pain, urinary incontinence, and the co-occurrence of these conditions have a negative impact on women's perception of their health status and their emotional health.

Chronic Pelvic Pain: Assessment, Evaluation, and Objectivation

Chronic Pelvic Pain (CPP) and Chronic Pelvic Pain Syndrome (CPPS) have a significant impact on men and women of reproductive and nonreproductive age, with a considerable burden on overall quality of life (QoL) and on psychological, functional, and behavioural status. Moreover, diagnostic and therapeutic difficulties are remarkable features in many patients. Therefore evaluation, assessment and objectivation tools are often necessary to properly address each patient and consequently his/her clinical needs. Here we review the different tools for pain assessment, evaluation, and objectivation; specific features regarding CPP/CPPS will be highlighted. Also, recent findings disclosed with neuroimaging investigations will be reviewed as they provide new insights into CPP/CPPS pathophysiology and may serve as a tool for CPP assessment and objectivation.