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fibromyalgia causes
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fibromyalgia causes
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Myofascial Pain Syndrome
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Hypothalamic-pituitary-adrenal stress axis function and the relationship with chronic widespread pain and its antecedents.
Arthritis Res Ther. 2005;7(5):R992-R1000
Authors: McBeth J, Chiu YH, Silman AJ, Ray D, Morriss R, Dickens C, Gupta A, Macfarlane GJ
In clinic studies, altered hypothalamic-pituitary-adrenal (HPA) axis function has been associated with fibromyalgia, a syndrome characterised by chronic widespread body pain. These results may be explained by the associated high rates of psychological distress and somatisation. We address the hypothesis that the latter, rather than the pain, might explain the HPA results. A population study ascertained pain and psychological status in subjects aged 25 to 65 years. Random samples were selected from the following three groups: satisfying criteria for chronic widespread pain; free of chronic widespread pain but with strong evidence of somatisation ('at risk'); and a reference group. HPA axis function was assessed from measuring early morning and evening salivary cortisol levels, and serum cortisol after physical (pain pressure threshold exam) and chemical (overnight 0.25 mg dexamethasone suppression test) stressors. The relationship between HPA function with pain and the various psychosocial scales assessed was modelled using appropriate regression analyses, adjusted for age and gender. In all 131 persons with chronic widespread pain (participation rate 74%), 267 'at risk' (58%) and 56 controls (70%) were studied. Those in the chronic widespread pain and 'at risk' groups were, respectively, 3.1 (95% CI (1.3, 7.3)) and 1.8 (0.8, 4.0) times more likely to have a saliva cortisol score in the lowest third. None of the psychosocial factors measured were, however, associated with saliva cortisol scores. Further, those in the chronic widespread pain (1.9 (0.8, 4.7)) and 'at risk' (1.6 (0.7, 3.6)) groups were also more likely to have the highest serum cortisol scores. High post-stress serum cortisol was related to high levels of psychological distress (p = 0.05, 95% CI (0.02, 0.08)). After adjusting for levels of psychological distress, the association between chronic widespread pain and post-stress cortisol scores remained, albeit slightly attenuated. This is the first population study to demonstrate that those with established, and those psychologically at risk of, chronic widespread pain demonstrate abnormalities of HPA axis function, which are more marked in the former group. Although some aspects of the altered function are related to the psychosocial factors measured, we conclude that the occurrence of HPA abnormality in persons with chronic widespread pain is not fully explained by the accompanying psychological stress.
PMID: 16207340 [PubMed - in process]
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Relieving fibromyalgia pain. An epilepsy medication and a popular cough syrup both seem to work.
Health News. 2005 Sep;11(9):14-5
Authors:
PMID: 16208813 [PubMed - indexed for MEDLINE]
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The effects of sex and hormonal status on the physiological response to acute psychosocial stress.
Psychoneuroendocrinology. 2005 Aug 31;
Authors: Kajantie E, Phillips DI
Whether one is male or female is one of the most important determinants of human health. While males are more susceptible to cardiovascular and infectious disease, they are outnumbered by women for many autoimmune disorders, fibromyalgia and chronic pain. Recently, individual differences in the physiological response to stress have emerged as a potentially important risk factor for these disorders. This raises the possibility that sex differences in prevalence of disease could at least in part be explained by sex differences in the nature of the physiological response to stress. In a psychophysiological laboratory, the autonomic nervous system response can be provoked by many different stressors including physical, mental and psychosocial tasks, while the hypothalamic-pituitary-adrenal axis (HPAA) response seems to be more specific to a psychosocial challenge incorporating ego involvement. The responses of both systems to different psychosocial challenges have been subject to extensive research, although in respect of sex differences the HPAA response has probably been more systematically studied. In this review, we focus on sex differences in HPAA and autonomic nervous system responses to acute psychosocial stress. Although some differences are dependent on the stressor used, the responses of both systems show marked and consistent differences according to sex, with the phase of the menstrual cycle, menopausal status and pregnancy having marked effects. Between puberty and menopause, adult women usually show lower HPAA and autonomic responses than men of same age. However, the HPAA response is higher in the luteal phase, when for example poststress free cortisol levels approach those of men. After menopause, there is an increase in sympathoadrenal responsiveness, which is attenuated during oral hormone replacement therapy, with most evidence suggesting that HPAA activity shows the same trends. Interestingly, pregnancy is associated with an attenuated response of the sympathoadrenal and HPAA systems at least as assessed by biochemical stimulation. It is likely that these sex differences in autonomic function are a result of estrogen exposure which attenuates sympathoadrenal responsiveness. The HPAA is however somewhat more complex and evidence now suggests the influence of other modifiers such as arginine vasopressin (AVP) and the regulation of circulating cortisol bioavailability by corticosteroid-binding globulin (CBG). The pronounced and multi-faceted sex differences in stress responsiveness suggest that they are a product of a strong evolutionary pressure. We hypothesise that this has to a great deal been driven by the need to protect the fetus from the adverse effects of maternal stress responses, in particular excess glucocorticoid exposure. Studying this hypothesis may have a fundamental impact on our understanding about how adult health is set during early life and how adult disease could be prevented in men and women.
PMID: 16139959 [PubMed - as supplied by publisher]
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Growth hormone in musculoskeletal pain states.
Curr Pain Headache Rep. 2005 Oct;9(5):331-8
Authors: Bennett R
Growth hormone is essential for normal linear growth and the attainment of an adult mature height. It also plays an important role in cartilage growth and the attainment of normal bone mass. There is only one rheumatic disorder, namely acromegaly, in which abnormalities of growth hormone production play a major etiologic role. However, there is increasing appreciation that suboptimal growth hormone secretion, leading to a state of adult growth hormone deficiency, may occur in the setting of chronic inflammatory disease, chronic corticosteroid use, and fibromyalgia. Therefore, the evaluation and effective management of growth hormone oversecretion and undersecretion is relevant to practicing rheumatologists.
PMID: 16157062 [PubMed - in process]
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Myofascial Pain Syndrome
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Myofascial Pain Syndrome
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fibromyalgia causes
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Myofascial Pain Syndrome
Fibromyalgia (FM), previously referred to as fibrositis, is a common condition that is characterized by widespread aching and stiffness in muscles and soft tissues and fatigue. The pain is felt around the neck, shoulders, upper back, elbows, lower back and hip girdle. Many people with FM have no underlying disorders while others who develop FM may have conditions such as rheumatoid arthritis or lupus erythematosus. Some people also have symptoms of irritable bowel syndrome, tension headaches, and numbness or tingling in the extremities.
CAUSE
The cause of fibromyalgia is unknown. There may be a link between FM and a sleep disturbance, since most patients have disruptive sleep patterns. Psychological stress and deconditioning (lack of exercise) are often associated with FMS. Altered pain processing is thought to be a possible cause rather than contributor.
HEALTH IMPACT
* FM is common, affecting approximately two percent of the U.S. population.
* It occurs seven times more frequently in women than in men.
* It occurs most frequently in women of childbearing age.
* Adolescents may also develop FM.
DIAGNOSIS
Diagnosis is based on the patient’s description of chronic widespread pain for at least three months and the finding of many areas of muscle tenderness on examination. There are no blood or x-ray tests that are abnormal in FM. In fact, abnormal blood tests may suggest a diagnosis other than fibromyalgia. Other conditions may mimic FM, such as hypothyroidism and hyperparathroidism. These can usually be excluded by examination and laboratory tests.
TREATMENT
There is no known cure for fibromyalgia. Patients may be reassured that the condition, while painful, does not damage tissues and that it can be managed successfully in many cases. The most successful treatment of fibromyalgia is a comprehensive team approach focusing on cognitive behavioral therapy, stress reduction, and medication to help with sleep.
Physical modalities (e.g., heat treatments, cold application, massage) can provide some temporary relief from symptoms but they should not be the focus of treatment. Gentle and regular stretching can be used to decrease tight muscles. Strength training activities help support the areas that have pain to help make muscles work more efficiently since those areas may be weak from inactivity. Supervised aerobic conditioning exercises are valuable since most people are deconditioned (out of shape). These endurance activities can help facilitate sleep, which often improves fatigue. The aquatic environment provides another option since the water allows you to tolerate more activity due to the effects of buoyancy. Aquatic exercises or swimming laps can be used. Start very gradually with any of these activities so you don’t set yourself back from ‘overdoing’ it. Moderation is the key to finding the balance between rest and activity.
Occupational therapy, including the use of adaptive devices and instruction in lifestyle modification, energy conservation, pacing and relaxation training can improve functional performance. Learning better coping skills and eliminating negative self-talk are beneficial. Attention to mental health, including psychological consultation, is also important, since depression may precede or accompany fibromyalgia.
Certain medications have an important role. Various medications to improve sleep and relax muscles, such as amitriptyline and cyclobenzaprine, are widely used. Hypnotic agents, anxiolytic drugs and anti-depressant medications may be appropriate. Local anesthetic or corticosteroid injections may be appropriate for painful local tender points. Pain may also be managed by non-steroidal anti-inflammatory drugs (ibuprofen, naproxen, others) or tramadol. Long-term opioid analgesics are rarely indicated.
A psychologist is often helpful in utilizing cognitive-behavioral techniques and relaxation training to reduce the pain. Psychological consultation may also identify an underlying component of depression, which can then be treated.
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Myofascial Pain Syndrome
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Myofascial Pain Syndrome
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The importance of postural habits in perpetuating myofascial trigger point pain.
Acupunct Med. 2005 Jun;23(2):77-82
Authors: Edwards J
Various structural abnormalities that contribute to the perpetuation of myofascial trigger point activity and the pain arising from it, have previously been well documented. In addition, however, there are a number of postural habits that are important to recognise as they may also contribute, as shown in the five cases discussed. These postural habits, which are likely to be carried out both frequently and unconsciously, are adopted during the course of sitting, standing or sleeping. They are entirely independent of any structural abnormalities that may be present. Correcting them is a necessary contribution to treatment, as failure to do so is liable to lead to persistence of the pain.
PMID: 16025788 [PubMed - indexed for MEDLINE]
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Myofascial Pain Syndrome
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fibromyalgia causes
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fibromyalgia causes
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Incarnations of fibromyalgia.
J Rheumatol. 2005 Aug;32(8):1422-5
Authors: Smythe HA
PMID: 16078314 [PubMed - indexed for MEDLINE]
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Rehabilitation approaches in fibromyalgia.
Disabil Rehabil. 2005 Jun 17;27(12):711-23
Authors: Adams N, Sim J
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.
PMID: 16012064 [PubMed - in process]
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Relieving fibromyalgia pain. An epilepsy medication and a popular cough syrup both seem to work.
Health News. 2005 Sep;11(9):14-5
Authors:
PMID: 16208813 [PubMed - in process]
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Functional Mixed-Effects Model for Periodic Data.
Biostatistics. 2005 Oct 5;
Authors: Qin L, Guo W
Periodic data are frequently collected in biomedical experiments. We consider the underlying periodic curves giving rise to these data, and account for the periodicity in their functional model to improve estimation and inference. We propose to incorporate the periodic constraint in the functional mixed-effects model setting. Both the fixed functional effects and random functional effects are modelled in the same periodic functional space, hence the population-average estimates and subject-specific predictions are all periodic. An efficient algorithm is given to estimate the proposed model by an O(N) modified Kalman filtering and smoothing algorithm. The proposed method is evaluated in different scenarios through simulations. Treatments to none-full period data and missing observations along the period are also given. Analysis of a cortisol data set obtained from a study on fibromyalgia is conducted as illustration.
PMID: 16207823 [PubMed - as supplied by publisher]
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Tender point assessment in juvenile primary fibromyalgia syndrome.
Arthritis Rheum. 2005 Oct 5;53(5):785-787
Authors: Swain NF, Kashikar-Zuck S, Brent Graham T, Prahalad S
No abstract.
PMID: 16208646 [PubMed - as supplied by publisher]
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Myofascial Pain Syndrome
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Auditory event-related brain potentials in fibromyalgia syndrome.
Rheumatol Int. 2005 Jun;25(5):345-9
Authors: Alanoğlu E, Ulaş UH, Ozdağ F, Odabaşi Z, Cakçi A, Vural O
OBJECTIVE: The aim of this study was to investigate cognitive functions using auditory event-related brain potentials (ERP) in fibromyalgia syndrome (FMS). METHODS: The P300 component of ERP was studied in 36 female FMS patients and 22 control subjects. The short form 36 (SF-36) medical outcome study was used to determine quality of life. Number of tender points and disease duration were noted. Cognitive functions were evaluated with P300. RESULTS: The symptoms were discrepant in FMS (P<0.001). The scores of the eight SF-36 subgroups in FMS patients were significantly lower than in the control group (P<0.001). Fibromyalgia syndrome patients had prolonged latency and reduced amplitude of P300 (P<0.001). No correlation was found between the subgroups of SF-36, tender point count, disease duration, and P300. CONCLUSION: The results of our study reveal that FMS affects quality of life and dysfunction in cognitive abilities can be determined by brain event-related potentials.
PMID: 14986061 [PubMed - indexed for MEDLINE]
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Sj gren's syndrome.
Lancet. 2005 Jul 23-29;366(9482):321-31
Authors: Fox RI
Sj gren's syndrome is a chronic autoimmune disorder of the exocrine glands with associated lymphocytic infiltrates of the affected glands. Dryness of the mouth and eyes results from involvement of the salivary and lacrimal glands. The accessibility of these glands to biopsy enables study of the molecular biology of a tissue-specific autoimmune process. The exocrinopathy can be encountered alone (primary Sj gren's syndrome) or in the presence of another autoimmune disorder such as rheumatoid arthritis, systemic lupus erythematosus, or progressive systemic sclerosis. A new international consensus for diagnosis requires objective signs and symptoms of dryness including a characteristic appearance of a biopsy sample from a minor salivary gland or autoantibody such as anti-SS-A. Exclusions to the diagnosis include infections with HIV, human T-lymphotropic virus type I, or hepatitis C virus. Therapy includes topical agents to improve moisture and decrease inflammation. Systemic therapy includes steroidal and non-steroidal anti-inflammatory agents, disease-modifying agents, and cytotoxic agents to address the extraglandular manifestations involving skin, lung, heart, kidneys, and nervous system (peripheral and central) and haematological and lymphoproliferative disorders. The most difficult challenge in diagnosis and therapy is patients with symptoms of fibromyalgia (arthralgia, myalgia, fatigue) and oral and ocular dryness in the presence of circulating antinuclear antibodies.
PMID: 16039337 [PubMed - in process]
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Search for Borna disease virus in Danish fibromyalgia patients.
Scand J Rheumatol. 2000;29(6):387-90
Authors: Wittrup IH, Christensen LS, Jensen B, Danneskiold-Samsee B, Bliddal H, Wiik A
OBJECTIVE: The purpose of this study was to look for Borna disease virus (BDV) in 18 patients with acute onset of fibromyalgia (FMS) following a "flu-like" episode. BDV is a neurotropic RNA virus affecting horses and sheep. Infections in animals have been reported to cause immune mediated disease characterized by abnormalities in behavior. A possible link between BDV and neuropsychiatric diseases in man has been described, and lately a connection to chronic fatigue syndrome (CFS) has been suggested. METHODS: A BDV-specific nested PCR (RT-PCR) was performed on serum and spinal fluid. RESULTS: The BDV genome was not detected in any of the FMS cases. CONCLUSION: Although BDV was not demonstrated in spinal fluid or serum from the tested patients with FMS, we believe that it is important to report our results, since FMS can exhibit many manifestations in common with CFS. Possible reasons for the discrepant findings are discussed.
PMID: 11132208 [PubMed - indexed for MEDLINE]
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Difficulties in the differential diagnosis between primitive rheumatic diseases and hepatitis C virus-related disorders.
Clin Exp Rheumatol. 2005 Jan-Feb;23(1):2-6
Authors: Palazzi C, Olivieri I, Cacciatore P, Pennese E, D'Amico E
PMID: 15789880 [PubMed - indexed for MEDLINE]
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Fibromyalgia: its prevalence in haemodialysis patients and its relationships with clinical and laboratory parameters.
Nephrol Dial Transplant. 2005 Jul 26;
Authors: Yuceturk TE, Yucel AE, Yuceturk H, Kart-Koseoglu H, Unuvar R, Ozdemir FN, Akcaly Z
Objective. Our aim was to determine the prevalence of fibromyalgia syndrome (FS) in chronic haemodialysis (HD) patients and to identify possible links between FS and various clinical and laboratory parameters. METHODS: We studied 122 chronic HD patients and 89 healthy age- and sex-matched controls, classified according to the American College of Rheumatology (ACR) classification criteria for FS. Age, sex, causes of renal failure, length of time on dialysis and marital status were recorded, and questions were asked about symptoms related to FS. All subjects completed the Fibromyalgia Impact Questionnaire (FIQ). Laboratory data obtained in the preceding 6 months were re-evaluated. RESULTS: Nine (7.4%) of the 122 HD patients and four of the 89 control subjects (4.5%) fulfilled the ACR criteria for definite FS (P = 0.56). The mean ages of the subjects who had definite FS and those who did not were similar. Most of the subjects diagnosed with definite FS were female (11 out of 13). The HD patients had higher FIQ scores than the controls, regardless of FS diagnosis. Among the HD patients, those with definite FS had a significantly higher mean FIQ score than all the other HD patients combined. In the all HD patients group, fatigue, irritable bowel syndrome and personal histories of depression were correlated with FS, whereas duration of HD, aetiology of renal failure, laboratory parameters and hepatitis B or C virus infection were not. CONCLUSION: The prevalence of FS appeared to be similar in chronic HD patients and the general population; also, FS-related symptoms appear to be similar in HD patients and the general population who have FS. No laboratory parameter was correlated with frequency of FS.
PMID: 16046505 [PubMed - as supplied by publisher]
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Rheumatic manifestations of hepatitis C infection.
Curr Rheumatol Rep. 2003 Jun;5(3):200-4
Authors: Vassilopoulos D, Calabrese LH
Among chronic viral infections, hepatitis C virus (HCV) infection is uniquely associated with an array of rheumatic manifestations and autoimmune laboratory findings. These include, among others, arthralgias, arthritis, fatigue, fibromyalgia, vasculitis, and sialadenitis (Sj gren-like). The mechanisms that are involved in the pathogenesis of these diverse manifestations have not yet been clarified. Regardless of the direct or indirect pathogenetic role of HCV in these clinical entities, the concomitant presence of a chronic viral infection creates a number of diagnostic and therapeutic problems. This is particularly true when immunosuppressive therapy is needed for control of disease activity (eg, HCV-associated cryoglobulinemic vasculitis). The emerging treatment options for chronic HCV offer a major chance for viral eradication and conceivably for cure of these HCV-associated conditions. In this review, the recent advances in the epidemiology, pathogenesis, clinical findings, and treatment of HCV-associated rheumatic conditions are presented.
PMID: 12744811 [PubMed - indexed for MEDLINE]
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Fibromyalgia pain: do we know the source?
Curr Opin Rheumatol. 2004 Mar;16(2):157-63
Authors: Staud R
PURPOSE OF REVIEW: Fibromyalgia Syndrome (FMS) is a chronic pain condition of unknown origin. Multiple abnormalities have been described, including peripheral tissue and central nervous system changes. The relation of these mechanisms, however, is likely bidirectional. FMS pain clearly depends on peripheral nociceptive input as well as abnormal central pain processing. This review will focus on the role of peripheral nociceptive input for pain in FMS. RECENT FINDINGS: There is strong evidence for abnormal central pain processing in FMS. Sensitized spinal cord neurons in the dorsal horn are responsible for augmented pain processing of nociceptive signals from the periphery. In addition, glial activation, possibly by cytokines and excitatory amino acids may play a role in the initiation and perpetuation of this sensitized state. SUMMARY: Nociceptive input clearly plays an important role in FMS. Acute or repetitive tissue injury has been associated with FMS pain. Cytokines related to such injuries may be responsible for long-term activation of spinal cord glia and dorsal horn neurons, thus resulting in central sensitization. A better understanding of these important neuro-immune interactions may provide relevant insights into future effective therapies.
PMID: 14770104 [PubMed - indexed for MEDLINE]
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Difficulties in the differential diagnosis between primitive rheumatic diseases and hepatitis C virus-related disorders.
Clin Exp Rheumatol. 2005 Jan-Feb;23(1):2-6
Authors: Palazzi C, Olivieri I, Cacciatore P, Pennese E, D'Amico E
PMID: 15789880 [PubMed - indexed for MEDLINE]
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[Fibromyalgia - An update.]
Internist (Berl). 2005 Sep 27;
Authors: Br ckle W, Zeidler H
Fibromyalgia is a common syndrome of unknown etiology characterized by chronic widespread pain and polysymptomatic autonomic disturbances and often mental features. The American College of Rheumatology's classification criteria define fibromyalgia by widespread pain and 11 of 18 tender points. Fibromyalgia is a diagnosis of exclusion as long as stand none laboratory or technical tests. The major role in pathogenesis appears to be central and involves the subcortical pain modulation, psychical stress especially in early childhood, endocrinological and genetic factors. There is no evidence of abnormalities in muscle and tendon. The goal of therapy in fibromyalgia is pain, reduced physical function and sleep disturbance. Actual evidence of effects of pharmacological and nonpharmacological interventions are summarized. Tricyclic agents, aerobic exercises, patient education and combined therapies can reduce effectively symptoms and disability.
PMID: 16187079 [PubMed - as supplied by publisher]
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Chronic widespread pain and fibromyalgia: should reports of increased mortality influence management?
Curr Rheumatol Rep. 2005 Oct;7(5):339-41
Authors: Macfarlane GJ
There have been few studies examining whether persons with chronic widespread pain or fibromyalgia are at increased risk for dying prematurely. Among the studies conducted there is little consistency in results. If there is an increased mortality risk, it is of the order of a 30% excess and it may be related to the lifestyle of patients with these symptoms, including lack of exercise. Skilled judgment is required in determining whether reports of new symptoms are likely to indicate underlying new pathology. Studies are currently underway which will determine whether initial observations of an increased mortality risk can be replicated.
PMID: 16174480 [PubMed - in process]
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Neural mechanisms of temporomandibular joint and masticatory muscle pain: A possible role for peripheral glutamate receptor mechanisms.
Pain Res Manag. 2005;10(3):145-52
Authors: Lam DK, Sessle BJ, Cairns BE, Hu JW
The purpose of the present review is to correlate recent knowledge of the role of peripheral ionotropic glutamate receptors in the temporomandibular joint and muscle pain from animal and human experimental pain models with findings in patients. Chronic pain is common, and many people suffer from chronic pain conditions involving deep craniofacial tissues such as temporomandibular disorders or fibromyalgia. Animal and human studies have indicated that the activation of peripheral ionotropic glutamate receptors in deep craniofacial tissues may contribute to muscle and temporomandibular joint pain and that sex differences in the activation of glutamate receptors may be involved in the female predominance in temporomandibular disorders and fibromyalgia. A peripheral mechanism involving autocrine and/or paracrine regulation of nociceptive neuronal excitability via injury or inflammation-induced release of glutamate into peripheral tissues that may contribute to the development of craniofacial pain is proposed.
PMID: 16175250 [PubMed - in process]
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Exercise and cognitive performance in chronic fatigue syndrome.
Med Sci Sports Exerc. 2005 Sep;37(9):1460-7
Authors: Cook DB, Nagelkirk PR, Peckerman A, Poluri A, Mores J, Natelson BH
PURPOSE: To determine the effect of submaximal steady-state exercise on cognitive performance in patients with chronic fatigue syndrome (CFS) alone, CFS with comorbid fibromyalgia FM (CFS + FM), and sedentary healthy controls (CON). METHODS: Twenty CFS-only patients, 19 CFS + FM, and 26 CON completed a battery of cognitive tests designed to assess speed of information processing, variability, and efficiency. Tests were performed at baseline, immediately before, and twice following 25 min of either cycle ergometry set at 40% of peak oxygen capacity or quiet rest. RESULTS: There were no group differences in average percentage of peak oxygen consumption during exercise (CFS = 45%; CFS + FM = 47%; Control = 43%: P = 0.2). There were no significant effects of acute exercise on cognitive performance for any group. At baseline, one-way ANOVA indicated that CFS patients displayed deficits in speed of processing, performance variability, and task efficiency during several cognitive tests compared with healthy controls. However, the CFS + FM patients were not different than controls. Repeated measures ANOVA indicated that across all tests (pre- and postexercise) CFS, but not CFS + FM, were significantly less consistent (F2,59 = 3.7, P = 0.03) and less efficient (F2,59 = 4.6, P = 0.01) than controls. CONCLUSION: CFS patients without comorbid FM exhibit subtle cognitive deficits in terms of speed, consistency, and efficiency that are not improved or exacerbated by light exercise. Importantly, our data suggest that CFS + FM patients do not exhibit cognitive deficits either pre- or postexercise. These results highlight the importance of disease heterogeneity in studies determining acute exercise and cognitive function in CFS.
PMID: 16177595 [PubMed - in process]
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The causes of musculoskeletal chest pain in patients admitted to hospital with suspected myocardial infarction.
Eur J Intern Med. 2005 Oct;16(6):432-6
Authors: How J, Volz G, Doe S, Heycock C, Hamilton J, Kelly C
BACKGROUND: We wished to investigate the causes and characteristics of musculoskeletal chest pain leading to acute medical admission. METHODS: We studied patients admitted to Queen Elizabeth Hospital, Gateshead, over a 10-week period. Patients with chest pain for which no acute cardiorespiratory cause was evident were identified and only included if they were tender on anteroposterior chest compression, thoracic spine rotation or firm sternal pressure. A detailed clinical history, anxiety and depression scale and a focussed physical examination were done to define the nature of musculoskeletal disease and their therapeutic requirements. RESULTS: Fifty patients satisfying the inclusion criteria were admitted in the 10-week period and comprised 54% females with a mean age of 57 years (S.D.=13.48). Chest pain lasted for 1 h or less in 24 patients and was mostly anterior. Three distinct groups of patients were identified. Twelve patients had evidence of inflammatory joint disease, thirteen had fibromyalgia and half had regional syndromes with pain arising from the shoulder, neck, thoracic spine or sternocostal areas. Visual analogue scores were highest in fibromyalgia for pain, and highest in inflammatory arthritis for impaired mobility. Anxiety and depression scores were highest in fibromyalgia and lowest among patients with regional syndromes. CONCLUSIONS: Musculoskeletal causes for acute chest pain are common and varied. Most patients have an identifiable cause of pain, but accurate diagnosis is needed to select the most appropriate intervention. Anxiety and depression are frequent, with much self-reported pain and dysfunction. However, all patients in this study had a disorder that was amenable to treatment and diagnosis. Management needs to be actively pursued in all patients.
PMID: 16198904 [PubMed - in process]
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The role of acupuncture for fibromyalgia pain. More questions than answers.
Curr Rheumatol Rep. 2005 Oct;7(5):336-7
Authors: Staud R
PMID: 16174478 [PubMed - in process]
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New pharmacologic therapies for fibromyalgia pain.
Curr Rheumatol Rep. 2005 Oct;7(5):337-8
Authors: Staud R
PMID: 16174479 [PubMed - in process]
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Pregabalin for the treatment of fibromyalgia syndrome: results of a randomized, double-blind, placebo-controlled trial.
Arthritis Rheum. 2005 Apr;52(4):1264-73
Authors: Crofford LJ, Rowbotham MC, Mease PJ, Russell IJ, Dworkin RH, Corbin AE, Young JP, LaMoreaux LK, Martin SA, Sharma U,
OBJECTIVE: Fibromyalgia syndrome (FMS) is characterized by widespread musculoskeletal pain and lowered pain threshold. Other prominent symptoms include disordered sleep and fatigue. FMS affects an estimated 2% of the population, predominantly women. This trial was designed to evaluate the efficacy and safety of pregabalin, a novel alpha(2)-delta ligand, for treatment of symptoms associated with FMS. METHODS: This multicenter, double-blind, 8-week, randomized clinical trial compared the effects of placebo with those of 150, 300, and 450 mg/day pregabalin on pain, sleep, fatigue, and health-related quality of life in 529 patients with FMS. The primary outcome variable was the comparison of end point mean pain scores, derived from daily diary ratings of pain intensity, between each of the pregabalin treatment groups and the placebo group. RESULTS: Pregabalin at 450 mg/day significantly reduced the average severity of pain in the primary analysis compared with placebo (-0.93 on a 0-10 scale) (P </= 0.001), and significantly more patients in this group had >/=50% improvement in pain at the end point (29%, versus 13% in the placebo group; P = 0.003). Pregabalin at 300 and 450 mg/day was associated with significant improvements in sleep quality, fatigue, and global measures of change. Pregabalin at 450 mg/day improved several domains of health-related quality of life. Dizziness and somnolence were the most frequent adverse events. Rates of discontinuation due to adverse events were similar across all 4 treatment groups. CONCLUSION: Pregabalin at 450 mg/day was efficacious for the treatment of FMS, reducing symptoms of pain, disturbed sleep, and fatigue compared with placebo. Pregabalin was well tolerated and improved global measures and health-related quality of life.
PMID: 15818684 [PubMed - indexed for MEDLINE]
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Awareness and knowledge of fibromyalgia among french rheumatologists and general practitioners.
Clin Exp Rheumatol. 2005 Sep-Oct;23(5):697-700
Authors: Blotman F, Thomas E, Myon E, Andre E, Caubere JP, Ta eb C
OBJECTIVES: Fibromyalgia is a chronic disorder characterized by widespread musculoskeletal pain and fatigue. Its prevalence is estimated to be at 3.4% in women and 0.5% in men. It is a major cause of morbidity. Our objective was to evaluate, using a self-questionnaire sent by mail, the level of knowledge of French physicians, general practitioners, and rheumatologists on fibromyalgia and to analyse their therapeutic approach. METHODS: The demographic characteristics of a sample of general practitioners and rheumatologists were compared to those of the overall data available. This comparison demonstrated the good representativeness of our sample. RESULTS: Fibromyalgia was considered as a disease by 23% of rheumatologists and 33% of general practitioners. While on average, each rheumatologist followed 30 fibromyalgia patients, each general practitioner followed 6.1 patients (i.e., 2 to 5% of their practice's patient base). Among rheumatologists, 6.4% made no distinction between this disease and depression vs. 13.1% of general practitioners. The diagnosis of fibromyalgia was made based on tenderness that occurs in precise, localized areas of the body (trigger points) by 94% of rheumatologists and 79.1% of general practitioners. Of general practitioners and rheumatologists, 93.7% and 73.7% respectively, have not received any medical school training on fibromyalgia or chronic fatigue syndrome. CONCLUSION: Given the lack of medical school training and continuing professional education concerning fibromyalgia (rare use of pain rating scales, confusion in the classification of rheumatic diseases), there is an urgent need to initiate an explicit teaching effort on chronic pain, and on fibromyalgia in particular.
PMID: 16173250 [PubMed - in process]
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Long-term medical conditions and major depression: strength of association for specific conditions in the general population.
Can J Psychiatry. 2005 Mar;50(4):195-202
Authors: Patten SB, Beck CA, Kassam A, Williams JV, Barbui C, Metz LM
BACKGROUND: The prevalence of major depression (MD) in persons with nonpsychiatric medical conditions is an indicator of clinical need in those groups, an indicator of the feasibility of screening and case-finding efforts, and a source of etiologic hypotheses. This analysis explores the prevalence of MD in the general population in relation to various long-term medical conditions. METHODS: We used a dataset from a large-scale Canadian national health survey, the Canadian Community Health Survey (CCHS). The sample consisted of 115 071 subjects aged 18 years and over, randomly sampled from the Canadian population. The survey interview recorded self-reported diagnoses of various long-term medical conditions and employed a brief predictive interview for MD, the Composite International Diagnostic Interview Short Form for Major Depression. Logistic regression was used to adjust estimates of association for age and sex. RESULTS: The conditions most strongly associated with MD were chronic fatigue syndrome (adjusted odds ratio [AOR] 7.2) and fibromyalgia (AOR 3.4). The conditions least strongly associated were hypertension (AOR 1.2), diabetes, heart disease, and thyroid disease (AOR 1.4 in each case). We found associations with various gastrointestinal, neurologic, and respiratory conditions. CONCLUSIONS: A diverse set of long-term medical conditions are associated with MD, although previous studies might have lacked power to detect some of these associations. The strength of association in prevalence data, however, varies across specific conditions.
PMID: 15898458 [PubMed - indexed for MEDLINE]
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Fibromyalgia after motor vehicle collision: evidence and implications.
Traffic Inj Prev. 2005 Jun;6(2):97-104
Authors: McLean SA, Williams DA, Clauw DJ
OBJECTIVE: Assess currently available evidence regarding the ability of a motor vehicle collision (MVC) to trigger the development of fibromyalgia (FM). METHODS: Consensus standards developed by the American College of Rheumatology Environmental Disease Study Group were used to assess the ability of an MVC to trigger FM. RESULTS: Increasing evidence suggests that FM and related disorders are characterized by abnormalities in central nervous system function related to sensory processing, autonomic regulation, and neuroendocrine function. MVC trauma appears capable of triggering FM, but generally not through direct biomechanical injury. Instead, the evidence suggests that MVC trauma can act as a "stressor," which in concert with other factors, such as an individual's biologic vulnerability, psychosocial factors, cultural factors, and so on, may result in the development of chronic widespread pain and other somatic symptoms. MVC trauma is only one of many stressors which can trigger such disorders, and the environment within which the stressor is experienced (biological and psychosocial) may largely determine whether there is an adverse physiologic result or not. CONCLUSIONS: The evidence that MVC trauma may trigger FM meets established criteria for determining causality, and has a number of important implications, both for patient care, and for research into the pathophysiology and treatment of these disorders.
PMID: 16019393 [PubMed - indexed for MEDLINE]