Fibromyalgia: England

Carville SF, Arendt-Nielsen S, Bliddal H, Blotman F, Branco JC, Buskila D, Da Silva JA, Danneskiold-Samsøe B, Dincer F, Henriksson C, Henriksson KG, Kosek E, Longley K, McCarthy GM, Perrot S, Puszczewicz M, Sarzi-Puttini P, Silman A, Späth M, Choy EH, Anonymous00148. · Academic Rheumatology Unit, King's College London, Weston Education Centre, Cutcombe Road, London SE5 9RJ, UK. · Ann Rheum Dis. · Pubmed #17644548 No free full text.

Abstract: OBJECTIVE: To develop evidence-based recommendations for the management of fibromyalgia syndrome. METHODS: A multidisciplinary task force was formed representing 11 European countries. The design of the study, including search strategy, participants, interventions, outcome measures, data collection and analytical method, was defined at the outset. A systematic review was undertaken with the keywords "fibromyalgia", "treatment or management" and "trial". Studies were excluded if they did not utilise the American College of Rheumatology classification criteria, were not clinical trials, or included patients with chronic fatigue syndrome or myalgic encephalomyelitis. Primary outcome measures were change in pain assessed by visual analogue scale and fibromyalgia impact questionnaire. The quality of the studies was categorised based on randomisation, blinding and allocation concealment. Only the highest quality studies were used to base recommendations on. When there was insufficient evidence from the literature, a Delphi process was used to provide basis for recommendation. RESULTS: 146 studies were eligible for the review. 39 pharmacological intervention studies and 59 non-pharmacological were included in the final recommendation summary tables once those of a lower quality or with insufficient data were separated. The categories of treatment identified were antidepressants, analgesics, and "other pharmacological" and exercise, cognitive behavioural therapy, education, dietary interventions and "other non-pharmacological". In many studies sample size was small and the quality of the study was insufficient for strong recommendations to be made. CONCLUSIONS: Nine recommendations for the management of fibromyalgia syndrome were developed using a systematic review and expert consensus.

Eccleston C, Palermo TM, Williams AC, Lewandowski A, Morley S. · Cochrane Pain, Palliative and Supportive Care Review Group, Centre for Pain Research, University of Bath, Claverton Down, Bath, UK, BA2 7AY. · Cochrane Database Syst Rev. · Pubmed #19370592 No free full text.

Abstract: BACKGROUND: Headache, recurrent abdominal pain, and musculoskeletal pain affect many children, who report severe pain, distressed mood, and disability. Psychological therapies are emerging as effective interventions to treat children with chronic or recurrent pain. This is a substantially updated and expanded version of the Cochrane review published in 2003. OBJECTIVES: To assess the effectiveness of psychological therapies for reducing pain, disability, and improving mood in children and adolescents with recurrent, episodic, or persistent pain. SEARCH STRATEGY: Searches were undertaken of MEDLINE, PsycLIT, EMBASE and CONSORT. RCTs were sought in references of all identified studies, meta-analyses and reviews. Date of most recent search: August 2008. SELECTION CRITERIA: Randomised Controlled Trials (RCTs) with at least ten participants in each arm post-treatment comparing psychological therapies with placebo, waiting list or standard medical care for children or adolescents with episodic, recurrent or persistent pain, were eligible for inclusion. DATA COLLECTION AND ANALYSIS: All included studies were analysed and the quality of the studies recorded. All treatments were combined into one class: psychological treatments; headache and non-headache outcomes were separately analysed on three outcomes: pain, disability, and mood. MAIN RESULTS: Thirty-four RCT studies were recovered; 29 met the inclusion criteria. The total number of participants completing treatments was 1432. Twenty studies addressed treatments for headache (including migraine); six for abdominal pain; one for both headache and abdominal pain, one study was for fibromyalgia, and one was for pain associated with sickle cell disease. The analysis of headache treatment versus control differences immediately post-treatment for pain gave an odds ratio (OR) of 5.51 (95% CI 3.28 to 9.24; z = 6.46, P < 0.05); NNT = 2.57 (CI 2.2 to 3.13). At follow-up, the OR was 9.91 (95% CI 3.73 to 26.33); z = 9.91, P < 0.05); NNT = 1.99 (CI 1.63 to 2.72). Analysis of non-headache treatment versus control differences immediately post-treatment for pain found a large effect size of -0.94 (95% CI -1.43 to -0.44) Z = 3.71, P < 0.05. At follow-up, a large effect size was found of -1.08 (95%CI -1.84 to -0.33); Z = 2.82, P < 0.05). There were no other significant effects. AUTHORS' CONCLUSIONS: Psychological treatments are effective in pain control for children with headache and benefits appear to be maintained. Psychological treatments may also improve pain control for children with musculoskeletal and recurrent abdominal pain. There is little evidence available to estimate effects on disability or mood.

Carville SF, Choy EH. · Sir Alfred Baring Garrod Clinical Trials Unit, Department of Academic Rheumatology, King's College London, London, UK. · J Rheumatol. · Pubmed #18792996 No free full text.

Abstract: OBJECTIVE: Fibromyalgia (FM) comprises many symptoms and features. Consequently, studies on the condition have used a wide variety of outcome measures and assessment instruments. We investigated those outcome measures and instruments in association with the OMERACT (Outcome measures in Rheumatoid Arthritis Clinical Trials) FM Workshop initiative to define core outcome measures that should be used to assess FM. METHODS: A systematic literature review up to December 2007 was carried out using the keywords "fibromyalgia," "treatment" or "management," and "trial." Data were extracted on outcome measures and assessment instruments used and the pre and post mean and standard deviation to calculate effect sizes (ES). Further sensitivity analysis was carried out according to treatment type, blinding status, and study outcome. RESULTS: The outcome domains identified fell largely within those defined by OMERACT. Morning stiffness was frequently assessed and therefore has been included here. The number of assessment instruments used was wide-ranging, so sensitivity analysis was only carried out on the top 5 within each domain. ES ranged from 0.54 to 3.77 for the key OMERACT domains. Health-related quality of life (HRQOL) was the only exception that had no instrument with moderate sensitivity. Of the secondary domains, dyscognition was lacking any sensitive instrument, as were fatigue and anxiety in pharmacological trials. CONCLUSION: Each of the key OMERACT domains has an instrument that appears to be sensitive to change, with the exception of HRQOL, which requires further research. Dyscognition, fatigue, and anxiety would all benefit from more research into their assessment instruments.

Sultan A, Gaskell H, Derry S, Moore RA. · Nuffield Department of Anaesthetics, John Radcliffe Hospital, Oxford, OX3 9DU, UK. · BMC Neurol. · Pubmed #18673529 links to  free full text

Abstract: BACKGROUND: Duloxetine hydrochloride is a reuptake inhibitor of 5-hydroxytryptamine and norepinephrine used to treat depression, generalized anxiety disorder, neuropathic pain, and stress incontinence in women. We investigated the efficacy of duloxetine in painful diabetic neuropathy and fibromyalgia to allow comparison with other antidepressants. METHODS: We searched PubMed, EMBASE (via Ovid), and Cochrane CENTRAL up to June 2008 for randomised controlled trials using duloxetine to treat neuropathic pain. RESULTS: We identified six trials with 1,696 patients: 1,510 were treated with duloxetine and 706 with placebo. All patients had established baseline pain of at least moderate severity. Trial duration was 12 to 13 weeks. Three trials enrolled patients with painful diabetic neuropathy (PDN) and three enrolled patients with fibromyalgia. The number needed to treat (NNT) for at least 50% pain relief at 12 to 13 weeks with duloxetine 60 mg versus placebo (1,211 patients in the total comparison) was 5.8 (95% CI 4.5 to 8.4), and for duloxetine 120 mg (1,410 patients) was 5.7 (4.5 to 5.7). There was no difference in NNTs between PDN and fibromyalgia. With all doses of duloxetine combined (20/60/120 mg) there were fewer withdrawals for lack of efficacy than with placebo (number needed to treat to prevent one withdrawal 20 (13 to 42)), but more withdrawals due to adverse events (number needed to harm (NNH) 15 (11 to 25)). Nausea, somnolence, constipation, and reduced appetite were all more common with duloxetine than placebo (NNH values 6.3, 11, 11, and 18 respectively). The results for duloxetine are compared with published data for other antidepressants in neuropathic pain. CONCLUSION: Duloxetine is equally effective for the treatment of PDN and fibromyalgia, judged by the outcome of at least 50% pain relief over 12 weeks, and is well tolerated. The NNT of 6 for 50% pain relief suggests that this is likely to be a useful drug in these difficult-to-treat conditions, where typically only a minority of patients respond. Comparing duloxetine with antidepressants for pain relief in DPN shows inadequacies in the evidence for efficacy of antidepressants, which are currently recommended in PDN care pathways.

Dziedzic K, Jordan JL, Foster NE. · Primary Care Musculoskeletal Research Centre, Keele University, Keele, Staffordshire ST5 5BG, UK. · Best Pract Res Clin Rheumatol. · Pubmed #18519096 No free full text.

Abstract: This chapter summarizes current evidence from recently published systematic reviews of land- and water-based exercise therapies for musculoskeletal conditions. The aim is to present an overview of the evidence and highlight gaps where more research is still needed. This is not a systematic review, but a systematic search of the literature and a summary of results of the best, most recent systematic reviews evaluating interventions for musculoskeletal conditions. There have been two previous summaries of systematic reviews of evidence for exercise therapies in musculoskeletal conditions. We have updated these searches, and additionally considered the evidence for the clinical effectiveness of exercise in fibromyalgia and chronic widespread pain and of hydrotherapy and water-based exercise treatments on pain and disability.

Lawson K. · Biomedical Research Centre, Sheffield Hallam University, Faculty of Health and Wellbeing, City Campus, Sheffield S1 1WB, UK. · Drug Discov Today. · Pubmed #18405846 No free full text.

Abstract: Fibromyalgia (FM) is a chronic pain condition, with auxiliary symptoms, such as sleep disturbances and fatigue. Although many of the mechanisms of action targeted by the drugs used to treat FM have been focused to the management of single symptoms, drugs (e.g. pregabalin, duloxetine) have now been identified that demonstrate a multidimensional effect. However, such drugs often fail to demonstrate acceptable efficacy in the majority of the patient population. Thus, the mechanisms of action of the drugs studied as treatments for FM are either identifying subgroups within the pathophysiology of the condition or suggesting that a mechanism of action that will offer universal efficacy has, as yet, to be identified.

Limer KL, Nicholl BI, Thomson W, McBeth J. · ARC Epidemiology Unit, University of Manchester, Stopford Building, Oxford Road, Manchester, M13 9PT. · Rheumatology (Oxford). · Pubmed #18321946 No free full text.

Abstract: Chronic widespread pain (CWP) is a prevalent disorder associated with a low pain threshold and increased levels of psychological distress. Evidence indicates that there is a genetic component to CWP syndromes and pain sensitivity. Here we have identified and reviewed the current literature on genetic association (GA) studies of CWP and pain sensitivity by searching MEDLINE and EMBASE between January 1990 and May 2007. Of the 18 candidate genes studied to date, no definitive susceptibility genes have been identified. This review highlights the key issues for consideration when interpreting the findings from existing studies and in designing future studies to ensure robust and comparable findings in this field. Well-designed GA studies are essential if the genetic component to CWP aetiology is to be fully determined.

Kanaan RA, Lepine JP, Wessely SC. · King's College London, Department of Psychological Medicine, Institute of Psychiatry, London, UK. · Psychosom Med. · Pubmed #18040094 links to  free full text

Abstract: OBJECTIVE: To review the evidence for overlap in the phenomenology of the Functional Somatic Syndromes (FSS). The FSS show considerable comorbidity, leading some to suggest they may be aspects of the same disorder. METHODS: We conducted a selective review of peer-reviewed articles on the co-occurrence of FSS symptoms and diagnoses. RESULTS: Considerable evidence of overlap was found at the level of symptoms, diagnostic criteria, and clinical diagnoses made. CONCLUSIONS: Phenomenological commonalities support a close relationship between the FSS, although differences remain in other domains. Whether the FSS may best be considered the same or different will depend on the pragmatics of diagnosis.

McBeth J, Jones K. · ARC Epidemiology Unit, The Medical School, The University of Manchester, Manchester, M13 9PT, UK. · Best Pract Res Clin Rheumatol. · Pubmed #17602991 No free full text.

Abstract: The rate of musculoskeletal pain in adolescent and adult populations is examined, with a focus on three commonly reported pain disorders: shoulder pain, low back pain and fibromyalgia/chronic widespread pain. There is a paucity of data on musculoskeletal pain in adolescent populations. Those studies available suggest that pain is common, although the actual rates are unclear. This is probably due to differences in study methodologies and populations. Pain is commonly reported among adult populations, with almost one fifth reporting widespread pain, one third shoulder pain, and up to one half reporting low back pain in a 1-month period. The prevalence of pain varies within specific population subgroups; group factors (including socioeconomic status, ethnicity and race) and individual factors (smoking, diet, and psychological status) are all associated with the reporting of musculoskeletal pain. However, the precise nature of these relationships, and particularly the mechanisms of association, are unclear and require further investigation.

Venables PJ. · Kennedy Institute Division, Imperial College, London, UK. · Best Pract Res Clin Rheumatol. · Pubmed #16979538 No free full text.

Abstract: Sjogren's syndrome is an autoimmune exocrinopathy that predominantly affects salivary and lachrymal glands, leading to dry eyes and mouth. The most common clinical problems faced by the rheumatologist are those of dry eyes and mouth, parotid swelling, fatigue and extraglandular manifestations. The first stage in management is to make an accurate diagnosis based on the American/European consensus criteria. The most frequent differential diagnoses are dry eyes and mouth symptoms, a variant of chronic fatigue syndrome and fibromyalgia, and sialosis, which causes a non-inflammatory enlargement of the parotid glands. The mainstay of treatment for the sicca symptoms is local therapy, and that for the milder systemic symptoms is hydroxychloroquine. Steroids and immunosuppressive drugs are reserved for more severe extraglandular disease. In spite of intensive research in other systemic treatments including biologic therapies, there is limited evidence to support their use in routine clinical practice.

Lawson K. · Biomedical Research Centre, Sheffield Hallam University, Faculty of Health and Wellbeing, UK. · Curr Opin Investig Drugs. · Pubmed #16869116 No free full text.

Abstract: Fibromyalgia is a chronic pain disorder for which pathophysiological mechanisms are difficult to identify and current drug therapies demonstrate limited effectiveness and significant tolerability. To date, no drugs have been officially approved for the indication of fibromyalgia, and randomized, controlled clinical trials with fibromyalgia patients are taking place to identify potential therapeutic approaches. Although emerging therapies, such as the antidepressants duloxetine and milnacipran and the antiepileptic pregabalin, offer certain efficacy, randomized controlled trials are generally difficult due to factors such as a lack of understanding of the pathophysiology and a heterogenous fibromyalgia patient population. For a significant advance in the drug treatment of fibromyalgia, novel clues are still awaited that may offer an effective therapeutic approach.

McCabe C, Lewis J, Shenker N, Hall J, Cohen H, Blake D. · Royal National Hospital for Rheumatic Diseases, Bath. · Clin Med. · Pubmed #16268331 No free full text.

Abstract: Attention and pain are linked inexorably. The manipulation of attention, via either distraction or focused attention, has been used as a therapeutic initiative for generations. Imaging evidence and clinical observations demonstrate that attention can be altered with associated changes at the cortical level and this may have positive or negative effects on the individual. New theories suggest that cortical remapping and visual attention may play key roles in a cortical model of pain specifically involving the motor control system. Within this system, the relationship between allocentric (external) and egocentric (internal) stimuli are managed; where conflict occurs, somaesthetic disturbances may be generated. If an individual pays too much attention to such sensory disturbances, then they may report the disturbances as abnormal symptoms, which may explain the diverse symptomatology of fibromyalgia. The use of a therapeutic optokinetic device to correct existing imbalances in the motor control system is also discussed.

Cairns V, Godwin J. · Clinical Trial Service Unit, University of Oxford, UK. · Int J Epidemiol. · Pubmed #16040645 links to  free full text

Abstract: BACKGROUND: This meta-analysis compares the prevalence of fatigue, musculoskeletal pain, and neurocognitive difficulties in patients who have had Lyme borreliosis (LB) and control subjects without LB. METHODS: Titles and abstracts in PubMed were reviewed for studies with data on the symptoms listed above that compared patients who had had LB with controls from the general population. Five studies with 504 patients and 530 controls were included in the meta-analysis. RESULTS: The prevalence of symptoms was significantly higher in the LB patients, with P-values between <0.00001 and 0.007 for 8 of the 10 symptoms in the three categories listed above. The higher prevalence of certain neurocognitive symptoms but not others, in the same pattern as reported in the literature, is further confirmation of this syndrome. The pattern of symptoms appears to be different from that seen in fibromyalgia, depression, and chronic fatigue syndrome. CONCLUSIONS: This meta-analysis provides strong evidence that some patients with LB have fatigue, musculoskeletal pain, and neurocognitive difficulties that may last for years despite antibiotic treatment.

Adams N, Sim J. · Centre for Research in Health Care, Liverpool John Moores University, Great Crosshall Street, Liverpool, UK. · Disabil Rehabil. · Pubmed #16012064 No free full text.

Abstract: PURPOSE: This paper provides an overview of the evidence for the principal approaches taken to the rehabilitation of patients with fibromyalgia (FM): exercise, psychologically-based approaches, multimodal approaches, self-management approaches, and complementary and alternative therapies. METHOD: A review of current published evidence. RESULTS: Owing 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 FM. However, there is growing evidence for the role of exercise training, and clear indications that if appropriately prescribed, this can be undertaken without adverse effects. Similarly, psychologically-based interventions such as cognitive-behavioural therapy have received some support from the literature. Evidence for other interventions is more equivocal. CONCLUSIONS: It appears that a combination of interventions, in a multimodal approach (e.g., exercises combined with education and psychologically-based interventions) is the most promising means of managing patients with FM.

Gupta A, Silman AJ. · ARC Epidemiology Unit, School of Epidemiology and Health Sciences, Manchester, UK. · Arthritis Res Ther. · Pubmed #15142258 links to  free full text

Abstract: The present review attempts to reconcile the dichotomy that exists in the literature in relation to fibromyalgia, in that it is considered either a somatic response to psychological stress or a distinct organically based syndrome. Specifically, the hypothesis explored is that the link between chronic stress and the subsequent development of fibromyalgia can be explained by one or more abnormalities in neuroendocrine function. There are several such abnormalities recognised that both occur as a result of chronic stress and are observed in fibromyalgia. Whether such abnormalities have an aetiologic role remains uncertain but should be testable by well-designed prospective studies.

Walker-Bone K, Palmer KT. · MRC Environmental Epidemiology Unit, Community Clinical Sciences, University of Southampton, Southampton, UK. · Occup Med (Lond). · Pubmed #12488514 links to  free full text

Abstract: Farming is a physically arduous occupation and this places farm workers at potential risk of musculoskeletal disorders such as osteoarthritis (OA) of the hip and knee, low back pain (LBP), neck and upper limb complaints, and hand-arm vibration syndrome (HAVS). This review considers the epidemiological evidence concerning such risks. The strongest evidence relates to OA of the hip, for which the public health impact is likely to be considerable. There is also weaker, but suggestive evidence that farmers more often have knee OA and LBP than workers in occupations with fewer physical demands. Tractor drivers, in particular, seem to have more LBP. Relatively little information exists on the risks of soft tissue rheumatism in the limbs and neck. For some outcomes, the link with occupational risk factors (such as heavy loading of joints and whole-body vibration) is sufficient to suggest the course that future prevention should take, but for several outcomes more research is first needed.

Lawson K. · Biomedical Research Centre and Division of Biomedical Sciences, Sheffield Hallam University, School of Science and Mathematics, City Campus, UK. · Expert Opin Investig Drugs. · Pubmed #12387704 No free full text.

Abstract: Fibromyalgia is a chronic pain disorder of which other clinical features, such as persistent fatigue and disordered sleep, may be a secondary consequence. The initial pharmacological approach to treating the disorder is the management of the pain. Tricyclic antidepressants are the most effective drugs in use so far, especially when administered in combination with other therapies (e.g., selective serotonin re-uptake inhibitors), which suggests modulation of the neurotransmitters serotonin and noradrenaline. The effectiveness of amitriptyline and related tricyclic antidepressants, however, is consistent with the involvement of mechanisms, such as potassium channel modulation and NMDA receptor antagonism, in addition to or in place of the modulation of monoamine neurotransmitters. Investigation of the importance of each of the pharmacological properties of amitriptyline and related molecules in the management of fibromyalgia could provide clues for the rational design of new drugs.

Sim J, Adams N. · Primary Care Sciences Research Center, Keele University, Keele, Staffordshire, UK. · Clin J Pain. · Pubmed #12218504 No free full text.

Abstract: OBJECTIVE: Little is known of the effectiveness of nonpharmacological interventions for fibromyalgia syndrome (FMS). The authors therefore carried out a systematic review from 1980 to May 2000 of randomized controlled trials (RCTs) of nonpharmacological interventions for FMS. METHOD: A search of computerized databases was supplemented by hand searching of bibliographies of key publications. The methodological quality of studies included in the review was evaluated independently by two researchers according to a set of formal criteria. Discrepancies in scoring were resolved through discussion. RESULTS: The review yielded 25 RCTs, and the main categories of interventions tested in the studies were exercise therapy, educational intervention, relaxation therapy, cognitive-behavioral therapy, acupuncture, and forms of hydrotherapy. Methodological quality of studies was fairly low (mean score = 49.5/100). Most studies had small samples (median for individual treatment groups after randomization = 20), and the mean power of the studies to detect a medium effect ( > or = 0.5) was 0.36. Sixteen studies had blinded outcome assessment, but patients were blinded in only 6 studies. The median longest follow-up was 16 weeks. Statistically significant between-group differences on at least one outcome variable were reported in 17 of the 24 studies. CONCLUSIONS: The varying combinations of interventions studied in the RCTs and the wide range of outcome measures used make it hard to form conclusions across studies. Strong evidence did not emerge in respect to any single intervention, though preliminary support of moderate strength existed for aerobic exercise. There is a need for larger, more methodologically rigorous RCTs in this area.

Targino RA, Imamura M, Kaziyama HH, Souza LP, Hsing WT, Imamura ST. · Division of Physical Medicine, Department of Orthopedics and Traumatology, University of São Paulo School of Medicine, Ave. Giovanni Gronchi, 1106 San Paulo, Brazil. · Curr Pain Headache Rep. · Pubmed #12207851 No free full text.

Abstract: Fibromyalgia is a chronic, painful musculoskeletal syndrome of unknown etiopathogenesis. In addition to medicamentous and physical and psychologic therapies, several other adjunct therapies have been used as alternatives in the attempt to obtain analgesia and decrease the symptoms that are characteristic of this problem. This article presents a literary review on the use of acupuncture as an adjunct or chief treatment for patients with fibromyalgia, comparing it with an ongoing clinical experience that has been carried out at Hospital das Clínicas in the city of São Paulo. The results were found by applying traditional acupuncture, which demonstrated positive rates in the Visual Analogue Scale, myalgic index, number of tender points, and improvement in quality of life based on the SF-36 questionnaire.

Meyer HP. · University of Pretoria, Private Bag X 396, Pretoria 0001, South Africa. · Curr Pain Headache Rep. · Pubmed #12095462 No free full text.

Abstract: Myofascial pain syndrome is a chronic muscle pain disorder in one or more muscles or groups of muscles accompanied by local and referred pain, decreased range of motion, weakness, and often autonomic phenomena. Patients are readily recognized by their history of muscle pain and the presence of myofascial trigger points, which are specific areas of hyperirritability in a muscle that cause local and referred pain on palpation. Failure to recognize MPS often leads to over-investigation, unnecessary medical intervention, and iatrogenic harm with serious cost implications. The purpose of this review is to present clinically relevant data regarding myofascial pain syndrome and to discuss its possible role in the pathophysiology and optimal treatment of fibromyalgia syndrome.

Suzuki R, Dickenson AH. · Department of Pharmacology, University College London, Gower Street, London, WC1E 6BT, United Kingdom. · Curr Pain Headache Rep. · Pubmed #12095461 No free full text.

Abstract: Chronic widespread pain is a primary feature of fibromyalgia and is a symptom that is poorly managed in many patients. In addition, patients often experience fatigue, sleep disturbances, and anxiety. Its etiology is largely unknown. The successful clinical management of this syndrome relies on a multidisciplinary approach, employing pharmacologic and nonpharmacologic treatments. Clinical evidence on the symptoms and characteristics of fibromyalgia suggests a central mechanism behind the pathogenesis of this syndrome. It is likely that drugs with central actions will prove to be effective against a number of symptoms. This article aims to outline some of the potential spinal pharmacologic targets that may be used to treat this condition.

Parker AJ, Wessely S, Cleare AJ. · Department of Psychological Medicine, Guy's, King's and St Thomas' School of Medicine and the Institute of Psychiatry, London. · Psychol Med. · Pubmed #11722149 No free full text.

Abstract: BACKGROUND: Disturbance of the HPA axis may be important in the pathophysiology of chronic fatigue syndrome (CFS) and fibromyalgia. Symptoms may be due to: (1) low circulating cortisol; (2) disturbance of central neurotransmitters; or (3) disturbance of the relationship between cortisol and central neurotransmitter function. Accumulating evidence of the complex relationship between cortisol and 5-HT function, make some form of hypothesis (3) most likely. We review the methodology and results of studies of the HPA and other neuroendocrine axes in CFS. METHOD: Medline, Embase and Psychlit were searched using the Cochrane Collaboration strategy. A search was also performed on the King's College CFS database, which includes over 3000 relevant references, and a citation analysis was run on the key paper (Demitrack et al. 1991). RESULTS: One-third of the studies reporting baseline cortisol found it to be significantly low, usually in one-third of patients. Methodological differences may account for some of the varying results. More consistent is the finding of reduced HPA function, and enhanced 5-HT function on neuroendocrine challenge tests. The opioid system, and arginine vasopressin (AVP) may also be abnormal, though the growth hormone (GH) axis appears to be intact, in CFS. CONCLUSIONS: The significance of these changes, remains unclear. We have little understanding of how neuroendocrine changes relate to the experience of symptoms, and it is unclear whether these changes are primary, or secondary to behavioural changes in sleep or exercise. Longitudinal studies of populations at risk for CFS will help to resolve these issues.

McBeth J, Silman AJ. · Arthritis Research Campaign Epidemiology Unit, School of Epidemiology and Health Sciences, University of Manchester, Stopford Building, Oxford Road, Manchester M13 9PT, UK. · Curr Rheumatol Rep. · Pubmed #11286672 No free full text.

Abstract: The cardinal features of fibromyalgia are chronic widespread pain in the presence of widespread tenderness as measured by multiple tender points. Despite extensive investigations, the etiology of this syndrome remains unclear. Increased rates of psychiatric disorders, particularly depressive, anxiety, and somatoform disorders, are apparent in clinic populations. Epidemiologic evidence suggests that this is also true for community subjects. Depression, generalized psychological distress, and other psychological factors have been shown to be associated with the onset and persistence of fibromyalgia symptoms. However, the bodily processes through which such factors may lead to the onset of fibromyalgia are unclear. Recent investigations have demonstrated altered stress system responsiveness, most notably the hypothalamic-pituitary-adrenal stress axis, in patients with fibromyalgia. These findings, and one promising avenue for investigating the interaction between psychological and biological factors in the onset of chronic pain syndromes including fibromyalgia, are discussed.

Linaker CH, Walker-Bone K, Palmer K, Cooper C. · Southampton General Hospital, Southampton, Hants S016 6YD, UK. · Baillieres Best Pract Res Clin Rheumatol. · Pubmed #10952860 No free full text.

Abstract: Regional musculoskeletal disorders are a major cause of morbidity both in the community and in the workplace. They comprise a heterogeneous group of conditions that are, for the most part, poorly characterized. Consequently, agreed diagnostic criteria have not existed for many of these disorders, and epidemiological investigations have used varied or ill-defined approaches to case definition. This chapter describes our current understanding of the epidemiology of regional pain disorders and details the strengths and weaknesses of the available data. Pain syndromes can be divided anatomically into those which cause generalized pain, such as fibromyalgia syndrome and myofascial pain syndromes, and those which are confined to one regional anatomical area. The latter group comprise those of the neck, shoulder, elbow, wrist/hand, hip, knee and ankle/foot. Current information is considered on the known risk factors for disorders at these sites, in addition to their impact upon both the individual and society.

Grahame R. · Hypermobility clinic, Rheumatology centre, UCL hospitals, London, UK. · Joint Bone Spine. · Pubmed #10875311 No free full text.

Abstract: Pain dominates the lives of many patients with hyperlaxity syndromes, most commonly the Benign Joint Hypermobility Syndrome (BJHS/EDS). As a result they may experience psychosocial problems, which in many cases severely affects their healthy functioning. Above all is the overriding chronic pain in joints, muscles and ligaments, which arises from an inherent predisposition to the effects of everyday trauma, but other factors such as associated osteoarthritis or fibromyalgia are also important. There may also be neurophysiological factors at play producing nociceptive enhancement. Pain and distress of visceral origin can result from laxity of connective tissue within or providing support for the abdominal, thoracic or pelvic viscera leading to hernia, uterine and/or rectal prolapse, mitral valve prolapse or spontaneous pneumothorax. In children joint hyperlaxity is an important (and often unrecognised) source of rheumatic symptoms, which may be ignored or erroneously ascribed to juvenile idiopathic arthritis. The management of pain and distress in the hyperlaxity syndromes requires skill, patience, compassion and understanding. Often the results of conventional anti-rheumatic therapy (including anti-rheumatic drugs and surgery) as applied to other rheumatic diseases are disappointing and innovative approaches are required. Amongst these, for which evidence of efficacy is available, are physiotherapeutic and orthotic stabilisation of hyperlax joints, proprioceptive enhancement and the newer pain management techniques including cognitive behavioural therapy.