Chronic Widespread Pain Syndrome Research Articles

Chronic Widespread Pain

ABSTRACT OBJECTIVE This article reviews the potential etiologies of chronic widespread pain syndromes and outlines a practical approach to the management of patients with these disorders. LATEST DEVELOPMENTS Recent updates to diagnostic criteria for primary chronic widespread pain syndromes have allowed for more effective diagnosis. Fibromyalgia is the most common presentation of chronic widespread pain, and the concept of nociplastic pain has been used to describe pain that is related to altered processing of pain sensory pathways. Research studies have provided a better understanding of the pathophysiology of the central augmentation that occurs in patients with nociplastic pain and fibromyalgia. ESSENTIAL POINTS Primary chronic widespread pain and fibromyalgia have established diagnostic criteria in which chronic pain involves multiple defined regions and occurs for longer than 3 months. Evaluation of chronic widespread pain should be directed by the clinical presentation. Neurologic disease can present with chronic widespread pain but is accompanied by associated signs and symptoms. Patients with chronic widespread pain benefit from effective communication that validates concerns, provides an understandable explanation of the presenting symptoms, and sets realistic expectations in outcomes using a comprehensive multimodal care plan.

Autoimmune thyroid disease and rheumatoid arthritis: where the twain meet.

Autoimmune thyroid disease (AITD) is the most prevalent autoimmune disease. It shares multiple genetic, clinical, and serologic characteristics with rheumatoid arthritis (RA). Although frequently described as a classic form of single-organ autoimmunity, the AITD disease burden in a subset of patients extends well beyond the thyroid gland. This review explores the complex interaction between the two diseases and the clinical consequences when they overlap. Beyond the well-known effects of AITD on thyroid function in RA, there is mounting evidence of the association of both conditions impacting the presentation and outcomes of diabetes, metabolic syndrome, and cardiovascular disease. An increasing number of studies suggest that there are negative effects of AITD on RA disease activity both in the presence and in the absence of thyroid dysfunction. Recent evidence suggests that AITD may not only worsen the cumulative damage of RA through higher disease activity but may also worsen secondary osteoarthritis changes. Less well-known is the significant association between AITD and chronic widespread pain syndromes including fibromyalgia. Importantly, the presence of fibromyalgia, which is increased in RA patients, appears to be further increased when it overlaps with AITD. Lastly, we probe the possible influence of AITD interacting with RA on fertility and clinical depression. Key Points • Autoimmune thyroid disease is the most common autoimmune disease and is frequently associated with rheumatoid arthritis. • Autoimmune thyroid disease can present with osteoarthritis, inflammatory arthritis, and chronic widespread pain syndromes. • The co-occurrence of autoimmune thyroid disease and rheumatoid arthritis may worsen disease activity and exacerbate other disease manifestations including cardiovascular disease, fertility, and depression. • The overlap of rheumatoid arthritis with autoimmune thyroid disease needs further research and should be sought in general clinical practice.

Is reduced heart rate variability associated with functional somatic disorders? A cross-sectional population-based study; DanFunD

ObjectivesIt has been hypothesised that functional somatic disorders (FSD) could be initiated by sympathetic predominance in the autonomic nervous system as measured by low heart rate variability (HRV). Earlier studies...

Lipid metabolism and functional somatic disorders in the general population. The DanFunD study.

Earlier studies on the association between plasma lipid profiles and functional somatic disorders (FSD) are mainly small case control studies hampered by selection bias and do not consider the great overlap between the various FSDs. The aim of the present study was to investigate the associations between various FSDs and plasma lipid profiles (total cholesterol, HDL cholesterol, non-HDL cholesterol and triglycerides) in a large, unselected population. A cross-sectional general population-based study. The Danish Study of Functional Somatic Disorders (DanFunD) conducted in 2011-2015 in 10 municipalities in the western part of greater Copenhagen, Denmark. A total of 8,608 men and women aged 18-76 years were included in the analyses. Various delimitations of FSD such as chronic fatigue, chronic widespread pain, irritable bowel, and bodily distress syndrome were measured using validated self-administrated questionnaires. Lipid parameters were measured from fasting plasma samples using colorimetric slide methods with Vitros 4600/5600 Ortho Clinical Diagnostics. Logistic regression analyses were used to calculate possible associations between plasma lipids and the various delimitations of FSD. Associations are presented by OR (95% CI) and shown in boxplots. We found a positive association between bodily distress syndrome and triglycerides and non-HDL cholesterol and a negative association with HDL-cholesterol, but no consistent association with total cholesterol. A similar pattern was observed for persons with chronic fatigue, and to some degree for persons with chronic widespread pain, whereas persons with irritable bowel did not show a clear association with the lipid profiles. This is the first major study on plasma lipid profiles and FSD indicating an association between some delimitations of FSD and an unfavorable lipid profile. Due to the cross-sectional design, it cannot be determined whether the findings are consequences or determinants of FSD. Further studies-preferable prospective studies-are needed.

Preserved tactile distance estimation despite body representation distortions in individuals with fibromyalgia.

Our mental representation of our body depends on integrating various sensory modalities, such as tactile information. In tactile distance estimation (TDE) tasks, participants must estimate the distance between two tactile tips applied to their skin. This measure of tactile perception has been linked to body representation assessments. Studies in individuals with fibromyalgia (FM), a chronic widespread pain syndrome, suggest the presence of body representation distortions and tactile alterations, but TDE has never been examined in this population. Twenty participants with FM and 24 pain-free controls performed a TDE task on three Body regions (upper limb, trunk, lower limb), in which they manually estimated the interstimuli distance on a tablet. TDE error, the absolute difference between the estimation and the interstimuli distance, was not different between the Groups, on any Body region. Drawings of their body as they felt it revealed clear and frequent distortions of body representation in the group with FM, compared to negligible perturbations in controls. This contrast between distorted body drawings and unaltered TDE suggests a preserved integration of tactile information but an altered integration of this information with other sensory modalities to generate a precise and accurate body representation. Future research should investigate the relative contribution of each sensory information and prior knowledge about the body in body representation in individuals with FM to shed light on the observed distortions.

Temporomandibular Disorders and Fibromyalgia Prevalence: A Systematic Review and Meta-Analysis.

To evaluate the prevalence of chronic widespread pain (CWP) and fibromyalgia syndrome (FMS) in TMD patients and the prevalence of TMDs in patients with FMS. A systematic search was performed in electronic databases. Studies published in English examining the prevalence of comorbid TMDs and CWP/FMS were included. The Newcastle-Ottawa Scale was used to assess study quality, and meta-analyses using defined diagnostic criteria were conducted to generate pooled prevalence estimates. Nineteen studies of moderate to high quality met the selection criteria. Meta-analyses yielded a pooled prevalence rate (95% CI) for TMDs in FMS patients of 76.8% (69.5% to 83.3%). Myogenous TMDs were more prevalent in FMS patients (63.1%, 47.7% to 77.3%) than disc displacement disorders (24.2%, 19.4% to 39.5%), while a little over 40% of FMS patients had comorbid inflammatory degenerative TMDs (41.8%, 21.9% to 63.2%). Almost a third of individuals (32.7%, 4.5% to 71.0%) with TMDs had comorbid FMS, while estimates of comorbid CWP across studies ranged from 30% to 76%. Despite variable prevalence rates among the included studies, the present review suggests that TMDs and CWP/FMS frequently coexist, especially for individuals with painful myogenous TMDs. The clinical, pathophysiologic, and therapeutic aspects of this association are important for tailoring appropriate treatment strategies.

Melatonin as a Coadjuvant in the Treatment of Patients with Fibromyalgia.

Fibromyalgia syndrome (FMS) is a chronic widespread pain syndrome that is accompanied by fatigue, sleep disturbances, anxiety, depression, lack of concentration, and neurocognitive impairment. As the currently available drugs are not completely successful against these symptoms and frequently have several side effects, many scientists have taken on the task of looking for nonpharmacological remedies. Many of the FMS-related symptoms have been suggested to be associated with an altered pattern of endogenous melatonin. Melatonin is involved in the regulation of several physiological processes, including circadian rhythms, pain, mood, and oxidative as well as immunomodulatory balance. Preliminary clinical studies have propounded that the administration of different doses of melatonin to patients with FMS can reduce pain levels and ameliorate mood and sleep disturbances. Moreover, the total antioxidant capacity, 6-sulfatoxymelatonin and urinary cortisol levels, and other biological parameters improve after the ingestion of melatonin. Recent investigations have proposed a pathophysiological relationship between mitochondrial dysfunction, oxidative stress, and FMS by looking at certain proteins involved in mitochondrial homeostasis according to the etiopathogenesis of this syndrome. These improvements exert positive effects on the quality of life of FMS patients, suggesting that the use of melatonin as a coadjuvant may be a successful strategy for the management of this syndrome.

Typical practice for managing patients with fibromyalgia

Background. Fibromyalgia (FM) is manifested by chronic widespread pain syndrome, sleep disorders, fatigue and subjective cognitive impairment. There is a late diagnosis of FM in different countries; there is no data on the typical medical practice of managing patients with FM in our country.
 Aim. To analyse the previous typical practice of managing patients with FM.
 Materials and methods. Fifty three patients with FM (47 women and 6 men) were under observation; the average age was 46.814.6 years. The duration of FM symptoms (years), the intensity of pain syndrome according to a Numerical Rating Scale (NRS), quality of life using The Revised Fibromyalgia Impact Questionnaire (FIQR), emotional state according to the Hospital Anxiety and Depression Scale (HADS), and treatment were evaluated.
 Results. The duration of symptoms before the diagnosis of FM was 7.0 (2.015.0) years. The intensity of pain during the initial examination in patients with FM according to NRS 7.11.9 points, the effect on the quality of life of patients with FM according to FIQR 54.918.4 points. The majority of patients (85%) were not diagnosed with FM before hospitalization. There were no statistically significant differences in the intensity of pain (p=0.478), the level of quality of life (p=0.611), the level of anxiety (0.159) and depression (0.347) in the groups of patients who had or did not have a diagnosis of FM.
 Conclusion. FM is rarely diagnosed in our country, even in cases of diagnosis, patients in many cases do not receive effective treatment, which reflects the low awareness of doctors about modern methods of diagnosis and treatment of FM.

Evidence-based approaches for the management of fibromyalgia syndrome: a scoping review

Background Fibromyalgia syndrome (FMS) is a chronic widespread pain syndrome characterized primarily by widespread pain, fatigue, sleep dysfunction and low exercise tolerance. The pathophysiology is complex and its understanding evolving, and clinical management is difficult, with heterogeneous interventions employed. Objectives This scoping review provides an overview of fibromyalgia syndrome, and the evidence for the principal rehabilitation approaches. CINAHL, Cochrane, Medline and PubMed databases were searched from 1996 to 2021. Rehabilitation approaches included exercise, psychologically-based approaches, multicomponent approaches, and complementary and alternative therapies. Major findings Due to factors such as methodological shortcomings of existing studies, and the lack of evidence on individual modalities, it is difficult to draw definitive conclusions as to which is the most appropriate rehabilitation approach in FMS. However, there is evidence from meta-analyses and several international guidelines for the use of approaches incorporating exercise. There is also some evidence for the use of psychologically-informed interventions such as cognitive-behavioural therapy (CBT) approaches. Evidence for other interventions is more equivocal. Conclusions It appears that a combination of interventions (e.g. exercises combined with education and psychological approaches), is the most promising means of managing patients with FMS. Issues such as high numbers of drop-outs from exercise programmes, lack of long-term follow-up in many studies, and patients’ preferences warrant further investigation. An individualized approach based upon extent of psychological involvement, severity of symptoms and level of disability is also recommended.

Plasma and interstitial levels of endocannabinoids and N-acylethanolamines in patients with chronic widespread pain and fibromyalgia: a systematic review and meta-analysis.

The endocannabinoid system (ECS) is an essential endogenous signaling system that may be involved in the pathophysiology of chronic widespread pain (CWP) and fibromyalgia syndrome (FMS). Further research is required to understand the role of ECS in the development and maintenance of CWP and FMS. We provided the first systematic review and meta-analysis exploring the clinical relevance of ECS alterations in patients with CWP and FMS by comparing plasma and interstitial levels of endocannabinoids and N-acylethanolamines in patients and healthy controls. A systematic search was conducted to identify studies that measured plasma and/or interstitial levels of endocannabinoids and N-acylethanolamines in patients with CWP or FMS and healthy controls. A total of 8 studies were included for qualitative review, and 7 studies were included for meta-analysis. The findings identified increased plasma levels of oleoylethanolamide and stearoylethanolamide in patients with FMS compared with those in controls (P = 0.005 and P < 0.0001, respectively) and increased plasma levels of palmitoylethanolamide and interstitial levels of stearoylethanolamide in patients with CWP compared with those in controls (P = 0.05 and P = 0.001, respectively). There were no significant differences in other ECS parameters. Most studies did not account for variables that may influence ECS function, including cannabis use, concomitant medication, comorbidities, physical activity, stress levels, circadian rhythm, sleep quality, and dietary factors, suggesting that future studies should explore the correlation between these variables and endocannabinoid activity. We highlight the importance of investigating endocannabinoid activity in CWP and FMS because it will underpin future translational research in the area.

A Correlation Between the Pathogenic Processes of Fibromyalgia and Irritable Bowel Syndrome in the Middle-Aged Population: A Systematic Review.

Irritable bowel syndrome (IBS) is a common pathology in middle-aged patients and a regular consultation in the gastroenterology office. The prevalence is high in females with a ratio of 2:1, and due to its multifactorial etiology, it is difficult to address the symptomatology. On the other hand, fibromyalgia syndrome (FMS) is a chronic widespread pain syndrome also prevalent in the female population, characterized by systemic symptoms. It is proven that 28-59 % of patients with FMS develop IBS at some point in their illness; on the other hand, 32-77% of those with IBS will develop FMS. Our study aims to compile information about the pathogenesis of these diseases and highlight their common processes to target these two illnesses potentially. This systematic review comprises twenty-three studies published between 2017 and 2022, selected by electronic research with keywords and Medical Subject Headings (MESH) strategy. The articles were taken from PubMed, Pubmed Central (PMC), Medline, and Cochrane libraries and met the inclusion and exclusion criteria and the pertinent quality checklists. Of the reviewed studies, 10 were case-control, six were narrative reviews, three were systematic reviews, three were cross-sectional, and one was a cohort study. They investigated the correlation and similitudes in the pathogenic process between FMS and IBS. There are some similar mechanisms in the physiopathologies of IBS and FMS, where the immune system, especially the mast cells (MCs), along with their products, receptors, the inflammatory cells with their intermediaries, hormones, and neurotransmitters such as serotonin, act together pathologically. Also, the role of the microbiota is very important in this pathogenesis since dysbiosis alters the levels of serotonin in the body and can produce hyperstimulation of the autonomic nervous system. There are common associated factors in IBS and FMS, with evident symptoms presented in both syndromes such as fatigue, pain, hypersensitivity, depression, anxiety, and others, that could be correlated in a certain way. After this systematic review, we can conclude that the most accepted theories of the common pathogenesis are the role of serotonin and MCs with their inflammatory biomarkers, which can affect different parts of the body producing the characteristic symptomatology. Moreover, other pathogenic mechanisms such as the involvement of microbiota and dysregulation of the gut-brain axis have shown promising results, and further investigation should be made to support their role.

Fibromyalgia: one year in review 2022.

Fibromyalgia syndrome (FM) is a chronic widespread pain syndrome characterised by fatigue, sleep disturbances and many idiopathic pain symptoms. The aim of this review is to describe and summarise the most recent findings concerning the diagnosis, aetiopathogenesis and treatment of fibromyalgia syndrome published between January 2021 and January 2022 and appearing on PubMed database. In particular, last year's literature focused on the impact of COVID-19 pandemic on FM patients, on new aetiopathogenetic horizons and the last conclusions about pharmacological and non-pharmacological interventions.

Chronic pain and exercise

Problem: Worldwide, at least one in four adults do not exercise sufficiently. Inactivity is associated with an increase in disease burden and mortality, whereas exercise can contribute to a longer, healthier life. Chronic musculoskeletal pain is a significant public health concern; in Germany, approximately 15% of the adult population suffers from chronic low back pain. Based on the diagnoses of chronic back pain, chronic joint pain, and chronic widespread pain or fibromyalgia syndrome, this study will evaluate the importance of exercise in the treatment of chronic pain. Methods: Narrative review based on current treatment guidelines and scientific publications. Results: Exercise and physical activity are both preventively and therapeutically effective in the treatment of chronic musculoskeletal pain. Individualized, supervised exercise programs that take patients’ preferences and goals into account appear to be particularly effective, regardless of pain location. There is evidence that the positive biopsychosocial effects of movement are more important than the specific form of exercise. Discussion: In the treatment of chronic pain, exercise and activity should be considered primary therapeutic measures and be prescribed accordingly. Supervision and adaptation of exercise programs to patient needs are critical factors of success, regardless of the type of sport or form of exercise. Even a small dose of physical activity achieves health benefits in patients with chronic pain and contributes to symptom relief.

Traumatic experiences and somatoform dissociation in women with fibromyalgia.

Objective: Psychological factors like traumatic life events seem to affect the etiopathogenesis and the exacerbation of fibromyalgia (FM), a chronic widespread musculoskeletal pain syndrome. This Study investigated the prevalence of traumatic events, with a particular attention to the whole life span, and both psychoform and somatoform dissociation in patients with FM, compared with healthy controls (HC). In addition, the possible effects of traumatic events and dissociative experiences on FM symptoms have been analyzed. Method: Traumatic experiences, dissociative symptoms, and psychological distress were assessed in 99 consecutive patients with FM and 107 healthy women. Student t-tests for two independent samples were used to determine differences between the FM and HC groups. A hierarchical multiple regression analysis was used to explore the possible contribution of trauma and dissociation to FM symptoms. Results: Results revealed that the levels of both somatoform and psychoform dissociation were higher among patients with FM than HC (p < .001). Moreover, patients with FM experienced significantly more negative life events than HC (p < .001). Finally, the data suggested that the severity of FM disabilities was significantly predicted by the presence of depressive symptoms, somatoform dissociation, cumulative trauma, and educational level. The final Model explained 40% of the variance. Conclusions: Results suggest that the construct of somatoform dissociation could serve as a useful framework to improve our understanding of FM symptoms, and stressed the importance of evaluating the effects of multiple traumas in cumulative form because this has substantial implications for the evaluation and treatment of patients. (PsycInfo Database Record (c) 2022 APA, all rights reserved).

Drug Repurposing Patent Applications April–June 2021

Drug Repurposing Patent Applications April–June 2021

Prevalence of fibromyalgia in medical students and its association with lifestyle factors - a cross-sectional study.

ObjectivesFibromyalgia (FM) is a chronic widespread pain syndrome, known to be associated with several other symptoms. Chronic stress is suspected to be a contributing factor in the pathogenesis of FM. It is known that medical students are under a constant state of stress originating from personal and social expectations. The aim of the study was to assess the prevalence of FM in this population and identify lifestyle parameters influencing FM severity.Material and methodsAn online survey of first- and final-year medical students was conducted using the ACR modified 2016 criteria and FANTASTIC checklist. The survey acquired demographic information such as age, gender, year, and division of studies. A subgroup analysis based on gender, year of studies, and division of studies was performed.Results439 medical students (71% females) completed the survey. The overall prevalence of FM in our cohort was 10.48%. The ratio of females to males was 3 : 1. A significant negative correlation between better quality of lifestyle and worse FM severity was observed in all subgroups. The “insight”, “sleep and stress”, “behavior” and “career” domains of lifestyle were found to have a significant negative correlation with FM severity on univariate analysis.ConclusionsThe prevalence of FM in medical students seems to be considerably higher than in the general population. Chronic stress levels, sleep problems, social support, and behavior seem to be the major factors influencing FM severity in this population. Our findings suggest that medical students must be considered a “high-risk” group for FM, and hence must be identified, educated, and managed accordingly. It is, therefore, important for medical universities to implement programs educating students about FM, the importance of a healthy lifestyle, and stress coping strategies, while also making systemic changes to curb stressors in medical training.

Enabling personal recovery from fibromyalgia \u2013 theoretical rationale, content and meaning of a person-centred, recovery-oriented programme

BackgroundFibromyalgia (FM) is a contested, chronic widespread pain syndrome on which recommended therapies have short-lasting, moderate effects. Nevertheless, some patients become symptom-free, and their recovery experiences inspired us to develop a patient-centred recovery-oriented programme (PROP) delivered in a group format. Presently, we describe the theoretical rationale, purpose and content of the PROP, and its meanings for clinicians and patients.MethodsA multidisciplinary clinical team, a leader of a rehabilitation unit, and two researchers coproduced the PROP. Five full-day seminars were arranged to bridge research and clinical experiences. Qualitative studies about patients’ illness and recovery experiences and questions by researchers facilitated reflections on clinical experiences. The meaning of the PROP was examined using focus group and individual interviews with patients and clinicians immediately after completing the course and after 1–1.5 years.ResultsThe biopsychosocial model displays the research evidence across biological, mental and social impacts of FM, justifying that life stress can be an illness-maintaining factor in FM. The content addresses enabling patients to heal their own life and self by modifying life stress. Patients engage in making sense of the relationship between FM, themselves, and life through exploring, discovering and creating appropriate solutions for their daily social life. The PROP reduced uncertainties and brought a positive attitude and hope to the groups. After 1 year, patients are still engaged in recovery work, experience more good days, and maintain hope for further recovery. By sharing and reflecting on clinical experiences, a unified clinical team was established that continues to develop their competency.ConclusionTo our knowledge, the PROP is the first programme for patients with FM that results from a process of coproducing knowledge, is based on explicit theoretical rationale, and facilitates a personal experiential recovery process. PROP is found to be meaningful and to work by patients and clinicians.

Fibromyalgia Patients Are Not Only Hypersensitive to Painful Stimuli But Also to Acoustic Stimuli

Fibromyalgia is a chronic widespread pain syndrome associated with hypersensitivity to nociceptive stimuli. This increased sensitivity of FM patients has been associated with central sensitization of dorsal horn neurons. Increasing evidence, however, suggests that the mechanisms of FM hypersensitivity not only affect pain but include light, smell, and sound. We hypothesized that supraspinal augmentation of sensory input including sound represent a hallmark of FM. We tested 23 FM patients and 28 healthy controls (HC) for sensory augmentation of nociceptive and non-nociceptive sensations: For assessment of nociceptive augmentation we used sensitivity adjusted mechanical and heat ramp & hold stimuli and for assessment of sound augmentation, we applied wideband noise stimuli using a random-staircase design. Quantitative sensory testing demonstrated increased heat and mechanical pain sensitivity in FM participants (P < .001). The sound pressures needed to report mild, moderate, and intense sound levels were significantly lower in FM compared to HC (P < .001), consistent with auditory augmentation.FM patients are not only augmenting noxious sensations but also sound, suggesting that FM augmentation mechanisms are not only operant in the spinal cord but also in the brain. Whether the central nervous system mechanisms for auditory and nociceptive augmentation are similar, needs to be determined in future studies. PerspectiveThis study presents QST evidence that the hypersensitivity of FM patients is not limited to painful stimuli but also to innocuous stimuli like sound. Our results suggest that abnormal brain mechanisms may be responsible for the increased sensitivity of FM patients.

Elevated tau and β-amyloid in the serum of fibromyalgia patients.

Fibromyalgia (FM) is a chronic widespread pain syndrome. Although its mechanism remains relatively unknown, accelerated neurodegeneration in the brain has been reported in patients with FM. Sleep disturbance can increase the risk of neurocognitive disorders, which are associated with tau and beta-amyloid (Aβ) protein accumulation. We hypothesize neurodegeneration in patients with FM may be associated with sleep disturbance. In this case-control study, we analyzed serum tau and Aβ levels and their association with symptom profiles for patients with FM, by recruiting 22 patients with FM and 22 age-matched healthy participants. The visual analog scale, Fibromyalgia Impact Questionnaire, pressure pain threshold test, Pittsburgh Sleep Quality Index (PSQI), Beck Depression Inventory-II, Beck Anxiety Inventory, and serum tau and beta-amyloid-42 (Aβ-42) levels were recorded. The Mann-Whitney test was conducted to compare questionnaire and protein level results between the groups. Pearson correlation test was conducted to investigate the correlation of questionnaire scores with tau and Aβ-42 levels in patients with FM. The significance level was set at P<.05. Serum tau and Aβ-42 levels were significantly higher in patients with FM than in controls. A positive correlation between serum tau levels and PSQI scores was observed in patients with FM (r=0.476, P=.025). We found that only sleep disturbance in patients with FM was significantly associated with higher serum tau levels among all symptom scores. We suggest sleep disturbance may play a vital role in the pathomechanism of accelerated neurodegeneration in FM.

Psychodynamic Psychotherapy for Patients With Functional Somatic Disorders and the Road to Recovery.

Patients with functional somatic disorders (FSDs) are commonly encountered in clinical practice and are often considered difficult to treat. This article summarizes recent advances in the understanding of these disorders that have opened new avenues for treatment. Findings concerning the role of three related key biobehavioral systems (attachment, mentalizing, and impairments in epistemic trust) that seem to be centrally involved in FSDs, as viewed from a psychodynamic perspective, are discussed as well as empirical evidence supporting the efficacy of psychodynamic psychotherapy for patients with FSDs. Finally, the basic treatment principles of dynamic interpersonal therapy, an integrative psychodynamic treatment adapted for patients with FSDs, are outlined through a description of the treatment of a woman with chronic widespread pain and irritable bowel syndrome.