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In 1992, reported Lyme disease cases increased, but the majority remained clustered in the northeast and midwest, and in California. The clinical syndromes associated with infection are better understood, and this information can calm public anxiety. The concept of fibromyalgia occurring after infection with Borrelia burgdorferi allows more appropriate treatment in late Lyme disease. The polymerase chain reaction is being applied to gain insights into the pathogenic mechanisms of Lyme disease. Progress has been made toward developing a vaccine through the use of animal models. Together, these advances provide clinicians with more confidence in the diagnosis and treatment of Lyme disease.
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PMID:Lyme disease. 804 45

Lyme disease or Lyme borreliosis, which is caused by three groups of the spirochete Borrelia burgdorferi, is transmitted in North America, Europe, and Asia by ticks of the Ixodes ricinus complex. The primary areas around the world that are now affected by Lyme disease are near the terminal moraine of the glaciers 15,000 years ago. The emergence of Lyme disease in the United States in this century is thought to have occurred because of ecological conditions favorable for deer. From 1982 through 1991, 40,195 cases occurring in 47 states were reported to the Centers for Disease Control, but enzootic cycles of B. burgdorferi have been identified in only 19 states. During the last several decades, the disease has spread to new areas and has caused focal outbreaks, including locations near Boston, New York, and Philadelphia. Lyme disease is like syphilis in its multisystem involvement, occurrence in stages, and mimicry of other diseases. Diagnosis of late neurologic abnormalities of the disorder has created the most difficulty. A recent phenomenon is that a number of poorly understood conditions, such as chronic fatigue syndrome or fibromyalgia, are misdiagnosed as "chronic Lyme disease." Part of the reason for misdiagnosis is due to problems associated with diagnostic tests. The various manifestations of Lyme disease can usually be treated successfully with oral doxycycline or amoxicillin, except for objective neurologic manifestations, which seem to require intravenous therapy. Vector control of thick-borne diseases has been difficult and, therefore, reduction of the risk of infection has been limited primarily to personal protection measures.
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PMID:Lyme disease: a growing threat to urban populations. 814 26

In this article, serologic tests and other procedures widely used to establish diagnoses of patients with rheumatic diseases are discussed. Musculoskeletal conditions are among the most common seen by physicians, and the current practice of including extensive laboratory tests and imaging procedures is not only ineffective but frequently results in misdiagnosis and inappropriate treatment. The approach outlined should provide treatment that is not only cost-effective but is directed to relief of symptoms and preservation of function, which are the primary goals of the patient and physician in the management of musculoskeletal problems. The costs in diagnosis of most patients with musculoskeletal pain often are considerably greater than the costs of treatment, which might be a reasonable consideration if expensive diagnostic studies would provide meaningful specificity regarding treatment. Many results, however, are misleading, for example, phenomena seen in at least 1% of the population, such as elevated ESR, rheumatoid factor titer, ANA, elevated uric acid, and Lyme Borreliosis titer, may be seen in individuals whose primary problem is fibromyalgia. In view of the fact that treatment is generally based on clinical observations, a considerable reduction in diagnostic studies might considerably reduce costs of patient care, without adversely affecting results and outcomes.
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PMID:A pragmatic approach to cost-effective use of laboratory tests and imaging procedures in patients with musculoskeletal symptoms. 831 81

It is now the most common vector-borne disease in the United States. But because of misdiagnosis, the spread of this disease may also be more apparent than real. Lack of standardized serologic tests and varying clinical presentations do create confusion. Nevertheless, it is possible to distinguish Lyme disease from look-alike disorders, such as chronic fatigue syndrome and fibromyalgia.
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PMID:Current understanding of Lyme disease. 846 65

A multidisciplinary referral center was established at a university hospital for prospectively assessing patients with possible Lyme disease. Borrelia burgdorferi is not known to be endemic in this region, but considerable anxiety about Lyme disease has developed among the general public. Sixty-five patients were referred for suspected Lyme borreliosis. Detailed histories were obtained and physical examinations were performed; patients were investigated aggressively in accordance with their symptom complexes. Strict diagnostic criteria consistent with published standards were applied. Only two of the 65 patients were judged to have probable Lyme disease. Definite major alternate diagnoses were made for 50 patients (77%); firm medical diagnoses (11 dermatologic, 9 rheumatologic, 9 infectious disease, 6 gastrointestinal, 4 neurological, and 2 miscellaneous) were made for 41 patients (63%); and major psychiatric diagnoses were made for 9 patients (14%). Probable diagnoses of chronic fatigue syndrome and fibromyalgia were made for 11 patients (17%). The conditions of four patients (6%) were undiagnosed. A referral center for patients with suspected Lyme disease can be useful even in an area of nonendemicity, and careful clinical assessment will reveal treatable alternate diagnoses for many patients with suspected Lyme disease.
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PMID:Experience at a referral center for patients with suspected Lyme disease in an area of nonendemicity: first 65 patients. 851 65

A new version of Lyme's disease classification based on the authors' experience and other classifications is proposed. It distinguishes periods of the disease (acute, subacute, chronic) and stages (I--isolated erythema migrans, II--local disseminated infection, III--generalized disseminated infection) as well as the signs which are significant in Lyme's disease diagnosis: erythematous and nonerythematous form, seropositivity or seronegativity against Borrelia burgdorferi. Subclinical (latent) infection, complications of Lyme's disease (fibromyalgia syndrome, chronic fatigue syndrome, etc.) and mixed-infection with tick-borne viral encephalitis are included as well.
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PMID:[The classification of Lyme borreliosis (Lyme disease)]. 857 Dec 52

Historically, arthritis was the main symptom which led to the description of the disease called Lyme borreliosis. However, a relatively high awareness of doctors and patients of tick-borne diseases seems to cause a trend to frequently diagnose this antibiotic-sensitive disease. A case can be defined as borreliosis only if either the typical erythema migrans is reliably identified by a physician or if a characteristic late manifestation of Lyme disease is accompanied by unequivocal serological and/or bacteriological evidence of Borrelia infection. Within the musculoskeletal system, the only reliably characteristic symptom is true synovitis, as defined by the palpable swelling of a joint. Mere joint pain or the subjective pain syndrome of fibromyalgia do not constitute a defining symptom for borreliosis. An evaluation of the frequency of Borrelia-associated arthritis in our Viennese rheumatology outpatient clinic revealed only six well-defined cases among 1,673 subsequent referrals. Based on "serological" suspicion, the question had been asked about possible borreliosis in 87 of these patients. In order to avoid unnecessary anxiety about possible long-term complications of Lyme disease among (actually misdiagnosed) patients, the diagnosis of Lyme arthritis should only be made according to the stringent criteria mentioned above. The antibiotic treatment, which is given to many questionable cases of borreliosis ex iuvantibus, although possibly of benefit to a few cases of otherwise undiagnosed reactive arthritis due to infections with microbes other than Borrelia burgdorferi, has to be termed irrational.
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PMID:A "minority" opinion about the diagnosis and treatment of Lyme arthritis. 885 81

A variety of conditions are frequently associated with the occurrence of head and neck pain. The purposes of this review are: to describe the characteristics of several musculoskeletal, neurological, and systemic conditions frequently cited as possible causes of head and neck pain and to suggest a new technique for treating head and neck pain. The characteristics of musculoskeletal conditions, such as muscle spasm, tendinitis, trigger points, and joint inflammation, and their relationship to head and neck pain are considered. The features and clinical implications of neurologic conditions, such as atypical facial pain, trigeminal and glossopharyngeal neuralgia, reflex sympathetic dystrophy, and neurogenic inflammation, are also described. The distinguishing characteristics of headaches, including cluster, tension, chronic daily, rebound, posttraumatic, and postlumbar puncture, are detailed. This review also addresses the contributions of systemic disorders, such as osteoarthritis, rheumatoid arthritis and the variants, and rheumatoid-related conditions, like dermatomyositis, temporal arteritis, Lyme's disease, and fibromyalgia, to head and neck pain. The results of a recent pilot study of the effectiveness of intraoral circulating ice water for resolving symptoms related to head and neck pain secondary to neurogenic inflammation are presented in this work. Ice water circulating through hollow metal tubes was placed intraorally for 15 minutes in the posterior maxillary area on 12 individuals with cervical pain and muscle spasm. In nine of these individuals, reduced cervical pain perception, upper trapezius electromyography signal reduction, and increased cervical range of motion was produced. Six out of 12 individuals had accompanying headache, which was reduced or eliminated in four cases. These findings suggest a strong trigemino-cervical relationship to neck pain and headache.
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PMID:Head and neck pain review: traditional and new perspectives. 889 41

A rational approach to diagnosis and treatment of Lyme disease requires an understanding of the endemic range of the tick vectors for B burgdorferi, the epidemiologic risk factors, and the spectrum of clinical manifestations. A two-step approach to serologic testing (ELISA followed by Western blot analysis of positive or equivocal results) can be useful if the pretest likelihood of Lyme disease is higher than 20%. Consideration should be given to the possibility of (1) a noninfectious disease with clinical features similar to those of Lyme disease or (2) coinfection with a second tick-transmitted organism. Late Lyme disease must be distinguished by clinical characteristics from fibromyalgia (the commonest source of misdiagnosis in several studies). Antibiotic therapy should be tailored to the extent of disease and limited to 4 weeks in most cases. Human vaccines based on an outer-surface protein from B burgdorferi have been tested in large-scale US clinical trials and may soon be approved for use in persons whose occupational or recreational activities place them at risk for B burgdorferi exposure.
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PMID:Lyme disease update. Current approach to early, disseminated, and late disease. 959 Sep 86

The aim of our review was to examine recently published cost-evaluations presenting originally developed data in rheumatic conditions. We identified 21 articles: 9 presenting original data on rheumatoid arthritis and/or osteoarthritis; 7 focusing on other musculoskeletal conditions such as back pain, scleroderma, Lyme disease, and fibromyalgia; and 5 assessing costs in total knee and hip arthroplasty. Most of the studies originated in the United States. In contrast to earlier reviews in this journal, fewer studies focused on only pharmacoeconomic aspects. In reviewing these studies, we found a lack of standardization in cost-assessment leading to a limited comparability of study results. As main tasks to improve the evidence achieved by performing cost-evaluations in clinical settings, we identified a standardization of main cost-components that should be covered by each clinical trial and the assessment of validity, reliability, and comparability of different data sources used to collect cost-data.
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PMID:Evaluation of costs in rheumatic diseases: a literature review. 1031 12


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