Revisiting the association between endometriosis and bipolar disorder

Psychiatric Symptoms in Patients with Cerebral Endometriosis: A Case Report and Literature Review

Endometriosis is a systemic medical condition characterized by endometrial tissue that is abnormally implanted in extrauterine sites, including the central nervous system. In this article, we reported the case of a patient with presumed cerebral endometriosis who was diagnosed with bipolar disorder and panic disorder and systematically reviewed the literature for previously reported neuropsychiatric symptoms in patients with cerebral and cerebellar endometriosis. The PubMed, Scopus, and Web of Science bibliographic databases were searched according to the PRISMA guidelines. Seven previous case reports were found and described. While neurological disturbances dominated the clinical picture in the cases retrieved from the literature, our patient represented the first case to show both neurological and psychiatric manifestations. Atypical features of bipolar disorder including chronic mood instability, mixed episodes, and excitatory interepisodic symptoms were highlighted. During the neuropsychological evaluation, a dysexecutive profile consistent with frontal lobe pathology was evidenced. We hypothesized that the course and features of the illness were largely influenced by the presence of documented brain lesions compatible with endometrial implants, especially in the frontal region. Accordingly, patients with endometriosis who exhibit neurological as well as mental symptoms should be investigated for cerebral lesions.

Chronic Pelvic Pain in Endometriosis: Cross-Sectional Associations with Mental Disorders, Sexual Dysfunctions and Childhood Maltreatment

The aim of this cross-sectional study was to compare the rates of mental disorders, sexual dysfunctions and childhood maltreatment (CM) in women with endometriosis with either chronic pelvic pain (CPP) or minimal to no pelvic pain. Additionally, two models to predict a current mental disorder were tested, including pelvic-pain-related or psychosocial predictor variables. We examined 100 women with confirmed endometriosis (group CPP, n = 50; group NOPAIN, n = 50). Participants responded to a comprehensive questionnaire and the Childhood Trauma Questionnaire. The Diagnostic Interview for Mental Disorders was used to assess mental disorders according to DSM-5 and to screen for sexual dysfunctions. The mean age was 28.8 ± 5.6 (CPP)/2.7 ± 6.3 (NOPAIN). Participants with CPP had higher rates of current mental disorders (p = 0.019), lifetime mental disorders (p = 0.006) and sexual dysfunctions (p < 0.001), but not CM (p = 0.074). In two binary-logistic regression analyses, a greater need for pain relief (aOR = 4.08, p = 0.026) and a sexual dysfunction (aOR = 2.69, p = 0.031) were significant predictors for a current mental disorder. Our findings confirmed the crucial role of pelvic pain for mental and sexual well-being in endometriosis. They highlight the need for pain relief and interdisciplinary care in the treatment of endometriosis.

Endometriosis, psychiatric comorbidities and neuroimaging: Estimating the odds of an endometriosis brain

Endometriosis is a chronic pain disorder that affects young women, impairing their physical, mental and social well-being. Apart from personal suffering, it imposes a significant economic burden on the healthcare system. We analyzed studies reporting comorbid mental disorders in endometriosis based on the ICD/DSM criteria, discussing them in the context of available neuroimaging studies. We postulate that at least one-third of endometriosis patients suffer from mental disorders (mostly depression or anxiety) and require psychiatric or psychotherapeutic support. According to three neuroimaging studies involving patients with endometriosis, brain regions related not only to pain processing but also to emotion, cognition, self-regulation and reward likely constitute the so-called "endometriosis brain". It is not clear, however, whether the neurobiological changes seen in these patients are caused by chronic pain, mental comorbidities or endometriosis itself. Given the paucity of high-quality data on mental comorbidities and neurobiological correlates in endometriosis, further research is needed.

Does Endometriosis Disturb Mental Health and Quality of Life? A Systematic Review and Meta-Analysis

INTRODUCTION

This study aimed to evaluate whether endometriosis could disturb the mental health and health-related quality of life (HRQoL) of patients and to provide a new prospective for further treatment of endometriosis.

METHODS

A comprehensive literature review was conducted among 4 international databases (PubMed, Embase, Web of Science, and Cochrane Library) and 2 of the largest Chinese databases (the China National Knowledge Infrastructure and Wangfang). The Newcastle-Ottawa Scale was used to assess the quality of the included articles. Six effect sizes were synthesized through a meta-analysis, and a subgroup analysis was performed to identify potential moderating factors, including types of control groups, methods of assessment, number of study groups, and origin of the study. Potential publication bias was examined using a funnel plot.

RESULTS

This meta-analysis pooled 44 articles from 4 continents and 13 countries and compared 6 types of main effect sizes (the odds ratio [OR] for depression, the OR for anxiety, the standardized mean difference [SMD] for depression, the SMD for anxiety, the SMD for the physical component summary [PCS] and the SMD for the mental component summary [MCS]) between endometriosis patients and controls. Except for the SMD for depression, all other effect sizes revealed statistically significant differences between the study group and the controls. The main effect size outcomes of the subgroup analysis were also similar. The type of control group (I2 = 35% in non-endometriosis control groups for the SMD of anxiety; I2 = 47% in non-endometriosis control groups for the MCS of the 36-Item Short Form Health Survey) and the continent of origin (I2 = 0% in studies from South America for the OR of depression; I2 = 47% in studies from Europe for the SMD of anxiety) may influence heterogeneity in this analysis. Additionally, depression and anxiety symptoms in patients seemed to be more apparent compared with healthy controls when the sample was smaller and when a questionnaire was used. The publication bias of the articles was acceptable.

CONCLUSION

Endometriosis can disturb mental health (specifically depression and anxiety) and decrease both the mental and physical HRQoL of patients. There may be some moderating factors that we were unable to identify in the subgroup analysis, but more research is necessary to develop proper management and improve the prognosis of endometriosis patients.

The Importance of a Multi-Disciplinary Approach to the Endometriotic Patients: The Relationship between Endometriosis and Psychic Vulnerability

Endometriosis is a chronic inflammatory condition, which is distinguished by the presence of the endometrial-like glands and stroma outside the uterine cavity. Pain and infertility are the most commonly expressed symptoms, occurring in 60% and 40% of cases, respectively. Women with endometriosis, especially those with pelvic pain, also have a greater vulnerability to several psychiatric disorders. There is, in particular, a tendency to contract affective or anxiety disorders as well as panic-agoraphobic and substance use disorders. Endometriosis with pelvic pain, infertility and psychic vulnerability usually leads to disability and a markedly lower quality of life for women of reproductive age. Thus, the burden of endometriosis is not limited to the symptoms and dysfunctions of the disease; it extends to the social, working and emotional spheres, leading to a severe impairment of global functioning. An analysis of scientific literature revealed a close relationship between specific temperamental traits, the expression of several psychiatric symptoms, chronicity of pain, risk of substance use and lower probability of a positive outcome. Endometriosis symptoms and the impact of related psychological consequences, increased vulnerability and the possible onset of psychiatric symptoms may influence coping strategies and weaken resilience, so triggering a vicious cycle leading to a marked deterioration in the quality of life. A multidisciplinary approach consisting of a medical team composed of gynecologists, psychologists, psychiatrists, experts in Dual Disorder, algologists and sexologists, would guarantee the setting of a target and taking the best decision on a personalized treatment plan. That approach would allow the prompt detection of any psychopathological symptoms and improve the endometriosis-related physical symptoms, bringing a healthier quality of life and a greater likelihood of a positive outcome.

Risk of bipolar disorder in patients with endometriosis: A nationwide population-based cohort study

BACKGROUND

Women with endometriosis (EM) have increased vulnerability to certain psychiatric disorders, including depression and anxiety, as well as bipolar disorder (BD). This study investigates the risk of BD development in EM patients. Also, the impact of EM treatment on the risk of developing BD is examined.

METHODS

A total of 17,832 EM patients and 17,832 non-EM controls matched by age, index year, and Charlson Comorbidity Index (CCI) score were included between 2000-2012 and followed to the end of 2013. Participants newly diagnosed as BD by board-certified psychiatrist were defined as incidents. Cox regression analysis was used to calculate the hazard ratio (HR) with 95% confidence interval (CI) of the BD incidence rate between two studied groups.

RESULTS

EM patients were associated with an increased risk of BD development compared with non-EM controls after adjusting for age, CCI score, and different treatment options (1.04 versus 0.56 per 1,000 person-years, HR: 2.34, 95% CI: 1.75-3.12). Also, there was no significant difference in the risk estimate between different hormonal or surgical treatment groups, suggesting a limited impact of EM treatment on the risk of BD development.

LIMITATIONS

This study deals with the duration of hormonal treatment, whether operated or not, which reduces the chances of showing the effect of individual EM treatment on the risk of BD development.

CONCLUSION

This study shows that EM patients are associated with an increased risk of BD development. Further studies would be needed to elucidate the mechanism linking the EM and BD.

Association of hysterectomy with bipolar disorder risk: A population-based cohort study

BACKGROUND

Hormonal fluctuations may trigger the onset of bipolar disorder. We designed a longitudinal follow-up study to evaluate the association between hysterectomies and bipolar disorder risk.

METHODS

We conducted a large retrospective cohort study using Taiwan's National Health Insurance Research Database. A total of 4,337 women aged 30 to 50 years who underwent the hysterectomy during 2000-2013 were selected and 17,348 patients without hysterectomy were selected for comparison (1:4 match). Poisson regression analysis was used to calculate the incidence rate ratio (IRR) and 95% confidence interval (CI).

RESULTS

During the follow-up of 7.93 years, 20 participants with hysterectomy and 28 without hysterectomy developed bipolar disorder. Receiving hysterectomy was associated with the risk of developing bipolar disorder (adjusted IRR = 2.80; 95% CI = 2.54-3.09). Women with hysterectomy had a higher risk of bipolar disorder in follow-up durations of <1 year (adjusted IRR = 2.18 with 95% CI = 1.94-1.45) and ≥1 year (adjusted IRR = 2.85 with 95% CI = 2.58-3.15). Endometriosis and Premarin use increased bipolar disorder incidence in the hysterectomy group (adjusted IRR = 3.17 [95% CI = 2.83-3.56] and 4.22 [95% CI = 3.71-4.80], respectively).

CONCLUSION

This study concluded that women with hysterectomy have an increased risk of bipolar disorder. Endometriosis and hormone therapy may add to the risk of bipolar disorder after hysterectomy. Knowledge about how surgical or natural hormonal withdrawal influences mood is fundamental and emphasizes the importance of coordinated psychiatric and gynecological care.

Depressive symptoms among women with endometriosis: a systematic review and meta-analysis

OBJECTIVE

To evaluate whether endometriosis is associated with depressive symptoms, and whether the association is modulated by pelvic pain.

DATA SOURCES

PubMed, Embase, PsychINFO, and the Cochrane Library, were systematically searched through September 2017.

STUDY ELIGIBILITY CRITERIA

The following eligibility criteria applied: full-text original article; quantitative data about depressive symptoms or depression; comparison of women with and without endometriosis, or women with endometriosis with and without pelvic pain. Articles reporting duplicated data were excluded.

STUDY APPRAISAL AND SYNTHESIS METHODS

Two reviewers selected and reviewed the studies. Disagreements were resolved through discussion or a third opinion. Qualitative synthesis was performed through tabulation and assessment using a modified version of the Newcastle-Ottawa Scale. Effect sizes were pooled through meta-analysis, and moderator analyses were performed to identify potential confounders with several variables: region of the sample, method of ascertainment of endometriosis, method of measurement of depression, year of publication, and quality score.

RESULTS

A meta-analysis of 24 studies (99,614 women) showed higher levels of depression among women with endometriosis compared to controls (standardized mean difference [SMD], 0.22, 95% confidence interval [CI], 0.13-0.32). The heterogeneity in this analysis (I² = 68%) was not explained by any of the moderating variables. When only healthy controls were considered, a larger endometriosis-depression effect was found (11 studies, SMD, 0.49; 95% CI, 0.24-0.73; I² = 69%). Endometriosis patients reporting pelvic pain had significantly higher levels of depression compared to those without pain (4 studies; SMD, 1.01; 95% CI, 0.71-1.31; I² = 0%). No significant difference was found between women with pelvic pain and endometriosis and those with pelvic pain but without endometriosis (11 studies, SMD, -0.11; 95% CI, -0.25 to 0.04; I² = 0%).

CONCLUSION

The association between endometriosis and depressive symptoms is largely determined by chronic pain but may also be modulated by individual and context vulnerabilities. Awareness of the complex relationship between endometriosis and depressive symptoms informs tailored care and patient-centered research outcomes.

Systematic review of quality of life measures in patients with endometriosis

OBJECTIVES

Endometriosis and quality of life has been the subject of much research, however, there is little consensus on how best to evaluate quality of life in endometriosis, resulting in many and diverse scales being used. In our study, we aim to identify quality of life scales used in endometriosis, to review their strengths and weaknesses and to establish what would define an ideal scale in the evaluation of endometriosis-related quality of life.

MATERIALS AND METHODS

A search of the MEDLINE and EMBASE databases was carried out for publications in English and French for the period from 1980 to February 2017, using the words 'endometriosis' and 'quality of life'. Publications were selected if they reported on quality of life in patients with endometriosis and specified use of a quality of life scale. A quantitative and a qualitative analysis of each scale was performed in order to establish the strengths and weaknesses for each scale (systematic registration number: PROSPERO 2014: CRD42014014210).

RESULTS

A total of 1538 articles publications were initially identified. After exclusion of duplicates and application of inclusion criteria, 201 studies were selected for analysis. The SF-36, a generic HRQoL measure, was found to be the most frequently used scale, followed by the EHP-30, a measure specific to endometriosis. Both perform well, when compared with other scales, with scale weaknesses offset by strengths. EHP-5 and EQ-5D also showed to be of good quality. All four were the only scales to report on MCID studied in endometriosis patients.

CONCLUSION

For clinical practice, routine evaluation of HRQOL in women with endometriosis is essential both for health-care providers and patients. Both SF-36 and EHP-30 perform better overall with regard to their strengths and weaknesses when compared to other scales.

Revisiting the wandering womb: Oxytocin in endometriosis and bipolar disorder

Hippocrates attributed women's high emotionality - hysteria - to a 'wandering womb'. Although hysteria diagnoses were abandoned along with the notion that displaced wombs cause emotional disturbance, recent research suggests that elevated levels of oxytocin occur in both bipolar disorder and endometriosis, a gynecological condition involving migration of endometrial tissue beyond the uterus. We propose and evaluate the hypothesis that elevated oxytocinergic system activity jointly contributes to bipolar disorder and endometriosis. First, we provide relevant background on endometriosis and bipolar disorder, and then we examine evidence for comorbidity between these conditions. We next: (1) review oxytocin's associations with personality traits, especially extraversion and openness, and how they overlap with bipolar spectrum traits; (2) describe evidence for higher oxytocinergic activity in both endometriosis and bipolar disorder; (3) examine altered hypothalamic-pituitary-gonadal axis functioning in both conditions; (4) describe data showing that medications that treat one condition can improve symptoms of the other; (5) discuss fitness-related impacts of endometriosis and bipolar disorder; and (6) review a pair of conditions, polycystic ovary syndrome and autism, that show evidence of involving reduced oxytocinergic activity, in direct contrast to endometriosis and bipolar disorder. Considered together, the bipolar spectrum and endometriosis appear to involve dysregulated high extremes of normally adaptive pleiotropy in the female oxytocin system, whereby elevated levels of oxytocinergic activity coordinate outgoing sociality with heightened fertility, apparently characterizing, overall, a faster life history. These findings should prompt a re-examination of how mind-body interactions, and the pleiotropic endocrine systems that underlie them, contribute to health and disease.

Endometriosis Psychological Aspects: A Literature Review

Introduction

Current evidence suggests that endometriosis imposes a considerable psychological burden on the affected women. This study was aimed to review this evidence.

Methods

A comprehensive electronic search was performed in Science direct, Medline/ PubMed, PsychINFO, Embase, CINAHL, Cochrane Clinical Trials, Scopus, Google scholar, Magiran and SID (Scientific Information Database) up to December, 15, 2016. Methodological quality of retrieved studies was assessed using a valid checklist. The main findings with regard to the objective of this review are extracted and summarized in tables.

Results

A total of 24 studies were included in the review from which, 23 used quantitative method and 1 used qualitative. Key findings of all studies showed that endometriosis reduces various aspects of psychological well-being.

Conclusions

Psychological interventions ranging from screening, providing consultation to psychiatric treatment prescriptions as same as the social supports such as work incentives should be integrated to endometriosis management protocols.

Chronic pelvic pain, psychiatric disorders and early emotional traumas: Results of a cross sectional case-control study

AIM

To compare the prevalence of psychiatric disorders and early emotional traumas between women with chronic pelvic pain (CPP) and healthy women.

METHODS

One hundred women in reproductive age, 50 of them had CPP (according to the criteria set by the International Association for Study of Pain), and 50 were considered healthy after the gynecological evaluation. The eligibility criteria were defined as follows: chronic or persistent pain perceived in the pelvis-related structures (digestive, urinary, genital, myofascial or neurological systems). Only women in reproductive age with acyclic pain for 6 mo, or more, were included in the present study. Menopause was the exclusion criterion. The participants were grouped according to age, school level and socio-economic status and were individually assessed through DSM-IV Structured Clinical Interview (SCID-I) and Early Trauma Inventory Self-report - short form (ETISR-SF Brazilian version). Descriptive statistics, group comparison tests and multivariate logistics regression were used in the data analysis.

RESULTS

The early emotional traumas are highly prevalent, but their prevalence did not differ between the two groups. The current Major Depressive Disorder was more prevalent in women with CPP. The CPP was associated with endometriosis in 48% of the women. There was no difference in the prevalence of disorders when endometriosis was taken into account (endometriosis vs other diseases: P > 0.29). The current Major Depressive Disorder and the Bipolar Disorder had greater occurrence likelihood in the group of women with CPP (ODDS = 5.25 and 9.0).

CONCLUSION

The data reinforce the link between mood disorders and CPP. The preview evidences about the association between CPP and early traumas tended not to be significant after a stronger methodological control was implemented.

Are mood and anxiety disorders and alexithymia associated with endometriosis? A preliminary study

Objective. The aim of this preliminary study was to determine whether psychiatric disorders, psychopathological symptoms, and alexithymia are associated with endometriosis in an Italian population. Study Design. A preliminary study comprising 37 Italian patients with surgically confirmed endometriosis and 43 controls, without clinical and ultrasound signs of endometriosis, was carried out. Both patients and controls were evaluated for the presence/absence of psychiatric disorders, psychopathological symptoms, alexithymia, and pain symptoms (nonmenstrual pelvic pain, dysmenorrhea, and dyspareunia). Results. Statistically significant differences were found between cases and controls for prevalence of mood and anxiety disorders, malfunctioning on obsessive-compulsive subscale (P < 0.01) and depression subscale (P < 0.05) of the Symptom Checklist-90-Revisited (SCL-90-R), and higher alexithymia levels (P < 0.01). Patients with endometriosis-associated pain showed greater prevalence of psychiatric disorders compared to pain-free patients but that difference was not significant. Significant correlation was found between malfunctioning in some SCL-90-R dimensions and pelvic pain, dysmenorrhea, and dyspareunia scores at the visual analog score (VAS). Conclusion. Some psychopathological aspects, such as psychoemotional distress and alexithymia, are more frequent in women with endometriosis and might amplify pain symptoms in these patients.

Effects of the menstrual cycle on bipolar disorder

OBJECTIVES

Several lines of research suggest that reproductive events may affect the course of bipolar disorder (BD) in some women. With respect to the menstrual cycle, the focus has been on dysphoric symptoms [e.g., premenstrual dysphoric disorder (PMDD)], and the exacerbation of depression, in the premenstrual phase. This article reviews the literature on the potential effects of the menstrual cycle on BD.

METHODS

A systematic search for published case reports and research studies available through March, 2013 was conducted. Several combinations of search terms were entered into PubMed and PsycInfo.

RESULTS

Overall, 25 case reports, ten retrospective studies, and 11 prospective studies were identified. The majority (64%) of case reports involved hypomanic or manic episodes in the premenstrual phase. Retrospective results suggest that 25-77% and 15-27% of women with BD meet the criteria for premenstrual syndrome (PMS) and PMDD, respectively. Menstrual cycle-related mood changes were reported by 64-68% of women with BD in retrospective studies, and were displayed by 44-65% of women in prospective studies.

CONCLUSIONS

Although research has focused on the premenstrual phase to the neglect of the periovulatory phase, it appears that a subgroup of women with BD, possibly those with hormonal sensitivity, experience menstrual cycle effects on depressive, hypomanic, and manic episodes. These phase-episode effects appear to be heterogeneous and may have implications for treatment. Whether they might best be described using course specifiers, similar to postpartum onset and rapid cycling, or as diagnostic entities, like PMDD, requires further study.

Canadian Network for Mood and Anxiety Treatments (CANMAT) and International Society for Bipolar Disorders (ISBD) collaborative update of CANMAT guidelines for the management of patients with bipolar disorder: update 2013

The Canadian Network for Mood and Anxiety Treatments published guidelines for the management of bipolar disorder in 2005, with updates in 2007 and 2009. This third update, in conjunction with the International Society for Bipolar Disorders, reviews new evidence and is designed to be used in conjunction with the previous publications.The recommendations for the management of acute mania remain largely unchanged. Lithium, valproate, and several atypical antipsychotic agents continue to be first-line treatments for acute mania. Monotherapy with asenapine, paliperidone extended release (ER), and divalproex ER, as well as adjunctive asenapine, have been added as first-line options.For the management of bipolar depression, lithium, lamotrigine, and quetiapine monotherapy, as well as olanzapine plus selective serotonin reuptake inhibitor (SSRI), and lithium or divalproex plus SSRI/bupropion remain first-line options. Lurasidone monotherapy and the combination of lurasidone or lamotrigine plus lithium or divalproex have been added as a second-line options. Ziprasidone alone or as adjunctive therapy, and adjunctive levetiracetam have been added as not-recommended options for the treatment of bipolar depression. Lithium, lamotrigine, valproate, olanzapine, quetiapine, aripiprazole, risperidone long-acting injection, and adjunctive ziprasidone continue to be first-line options for maintenance treatment of bipolar disorder. Asenapine alone or as adjunctive therapy have been added as third-line options.