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Query: UMLS:C0018099 (gout)
 5,192 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

To investigate the occurrence of acute arthritis after stroke, we prospectively studied 111 patients presenting with their first stroke and no history of previous arthritis. Clinical, biochemical and serological assessment was complemented by brain CT scan; appropriate X-rays were taken of any inflamed joints and synovial fluid was collected and analysed. Those with aseptic arthritis were randomly chosen to receive either intra-articular steroids or non-steroidal anti-inflammatory drugs (NSAIDs). Patients with significant renal impairment were excluded. Acute arthritis was observed within 8.34 (median) days, on the paretic side in 19 patients (10 crystal, 4 inflammatory osteoarthritis, 1 septic, 4 unexplained) and on the non-paretic side in 4 patients (1 inflammatory osteoarthritis, 1 septic, 2 unexplained). One patient had pseudogout affecting both sides. Thiazide therapy prior to the stroke was associated with gout in 3 patients. Hospital patients with arthritis had a longer median length of stay than those without (41 vs. 21 days: p = 0.01). Patients receiving intra-articular steroids recovered more rapidly than those treated with NSAIDs (p < 0.05). This prospective study demonstrates the occurrence of acute arthritis in paretic limbs after stroke. Physicians should be aware of this complication, and that administration of intra-articular steroids in aseptic cases speeds rehabilitation and recovery.
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PMID:The incidence of acute arthritis in stroke patients, and its impact on rehabilitation. 810 38

Monosodium urate, calcium pyrophosphate dihydrate, and basic calcium phosphate (carbonate-substituted hydroxyapatite and octacalcium phosphate) crystal aggregates are associated with gout, pseudogout, and cartilage degeneration (osteoarthritis, Milwaukee Shoulder/Knee Syndrome), respectively. Hyperuricemia is a frequent but nonspecific and inconstant feature of gout just as an elevated synovial fluid inorganic pyrophosphate level is an inconstant feature of pseudogout. Monosodium urate, calcium pyrophosphate dihydrate, or basic calcium phosphate crystals can cause acute inflammation associated with phagocytosis by neutrophilic leukocytes. Each induces neutral protease synthesis and secretion and arachidonic acid metabolism by synoviocytes and macrophages in a dose-dependent fashion, postulated to produce the damage to bone, cartilage, and other joint tissues that is perceived clinically as tophaceous destruction or degenerative joint disease. Crystals containing calcium are potent mitogens. All three types of crystals are more common in older persons and will attract additional attention as the mean age of our population increases. Gout is perhaps the most treatable disease in medicine, although mistakes in diagnosis and in choice of appropriate therapy are very common. Acute pseudogout and acute calcific periarthritis are readily treated medically, but the chronic effects of crystals containing calcium are not. New approaches using drugs derived from scientific study of the biologic effects of these crystals may become useful therapeutically.
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PMID:Crystals and arthritis. 819 28

The proper diagnosis of gout and pseudogout (ie, calcium pyrophosphate dihydrate crystal deposition disease) leads to correct treatment. The two disorders can be easily confused and misdiagnosed in certain situations. Thus, in every case, synovial fluid aspiration and microscopic synovial fluid analysis under compensated polarized light should be done to confirm the suspicion of crystal-induced arthropathy. Underlying diseases should always be sought, because many are treatable.
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PMID:Gout and 'pseudogout'. When are arthritic symptoms caused by crystal deposition? 830 55

This article describes the clinical spectrum of gout and pseudogout and discusses the role of colchicine, NSAIDs, and uric acid--lowering agents in the management of different stages of gout. A great majority of patients with gout are now seen and treated by primary care physicians. Strategy for successful management of gout and prevention of its disabling complications are discussed also.
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PMID:Gout and pseudogout. 831 84

The activation of human neutrophils by monosodium urate and calcium pyrophosphate dihydrate crystals is believed to play a critical role in the pathogenesis of arthritides such as acute gout and pseudogout, respectively. In this study, we investigated the potential involvement of tyrosine phosphorylation in microcrystal-mediated activation of human neutrophils. Immunoblot analysis with antiphosphotyrosine antibodies demonstrated that triclinic monosodium urate and calcium pyrophosphate dihydrate crystals stimulated a time- and concentration-dependent tyrosine phosphorylation of at least five proteins (pp130, 118, 80, 70, and 60). While phosphoprotein (pp) 118 and pp70 were the major phosphorylated substrates, pp70 was the dominant one in reactivity with antiphosphotyrosine antibodies. When the temporal patterns, as well as the levels of tyrosine phosphorylation for both types of crystals were compared, monosodium urate crystals were found to be more potent activators than calcium pyrophosphate dihydrate crystals. The tyrosine phosphorylation patterns induced by microcrystals differed from those stimulated by other soluble (FMLP, C5a, or leukotriene B4) or particulate (unopsonized latex beads or zymosan) agonists which stimulated preferentially the tyrosine phosphorylation of pp118. The ratio of the intensities of pp118 and pp70 were specific of the stimulation with microcrystals when compared to those observed with the other soluble or particulate agonists. Colchicine, a drug used specifically in the treatment of gout and pseudogout, inhibited microcrystal-induced tyrosine phosphorylation, while beta- and gamma-lumicolchicine were without effect. On the other hand, colchicine failed to inhibit FMLP-induced tyrosine phosphorylation. Furthermore, while colchicine inhibited the activation of the NADPH oxidase by microcrystals, it, on the other hand, enhanced the production of superoxide anions by FMLP. Taken together, these results (a) demonstrate that tyrosine phosphorylation is involved in the mechanism of activation of human neutrophils induced by microcrystals; and (b) suggest, on the basis of the characteristics of the observed patterns of tyrosine phosphorylation, that this response may be specific to the microcrystals and relevant to their phlogistic properties.
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PMID:Crystal-induced neutrophil activation. III. Inflammatory microcrystals induce a distinct pattern of tyrosine phosphorylation in human neutrophils. 838 91

A basic approach to the patient presenting with acute monoarthritis includes a careful history, a physical examination and a selected battery of laboratory tests and radiographs. Because of the possibility of septic joint, rapid assessment and treatment are required. The most common causes of acute monoarthritis are trauma, crystals (gout and pseudogout) and infection. The most important cause of acute monoarthritis is infection, which must be excluded through the use of diagnostic joint aspiration and culture of synovial fluid.
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PMID:Acute monoarthritis: a practical approach to assessment and treatment. 894 Sep 57

Many musculoskeletal complaints are accompanied by classic signs and symptoms that can be readily diagnosed by the primary care physician. Others are much less obvious and present a diagnostic challenge. In the office evaluation of patients with musculoskeletal complaints, the history is the most informative element. Least helpful are laboratory tests. Although erythrocyte sedimentation rate (ESR), rheumatoid factor, and other widely available tests are sensitive to the presence of rheumatic diseases, they are not specific for any of them. In the initial office evaluation, helpful points of differentiation include the number of joints involved, their location, and, when multiple joints are involved, whether they are symmetric or asymmetric. An acute monarthritis is associated mainly with trauma, infection, or a crystal-induced synovitis such as gout or pseudogout. Patients with polyarthritis may have symptoms that come and go very quickly, sometimes in < 24-36 hours. This migratory pattern characterizes diseases such as gonococcal arthritis, viral disease, and sarcoidosis. "Rheumatoid variants" such as Reiter's syndrome, psoriatic arthritis, and spondylitis may affect no more than a few joints and are accompanied by other signs, such as nail and skin lesions (psoriasis) or urogenital and enteric infections (Reiter's). Like erosive osteoarthritis, the rheumatoid variants may also cause swelling and inflammation of the distal interphalangeal joints. The classic example of symmetric joint disease is rheumatoid arthritis (RA). While RA often occurs in a progressive and additive pattern, its onset may be followed by a remission several months later. Patients who present with the "algias" may have no physical signs but manifest extensive musculoskeletal pain. Fibromyalgia occurs typically in younger women; polymyalgia rheumatica rarely occurs in patients < 50 years of age and is usually accompanied by a strikingly high ESR. Age and gender should be noted in the office evaluation because they can provide clues not only to these "algias," but other rheumatic diseases seen more frequently in one age or gender group than another.
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PMID:Office evaluation of the patient with musculoskeletal complaints. 921 53

Acute monarthritis should be regarded as infectious until proved otherwise. Early evaluation is crucial because of the capacity of some infectious agents to destroy cartilage rapidly. The history and physical examination can provide highly suggestive clues, but a definitive diagnosis may depend on arthrocentesis and analysis of synovial fluid. The diagnosis of acute monarthritis is rarely established by radiography. The most common cause of bacterial arthritis is Neisseria gonorrhoeae. Staphylococcus aureus and streptococci are the organisms most frequently implicated in nongonococcal bacterial arthritis, although the possibility of Gram-negative bacteria or anaerobes should not be overlooked in intravenous drug users or immunocompromised patients. Inflammation in a large joint, particularly the knee, might arouse suspicion of Lyme disease. Other, less frequently encountered infectious causes of acute monarthritis include tuberculosis and other mycobacteria, fungi, and viruses. Arthroscopic examination and synovial tissue biopsy may be necessary to diagnose such processes. Microscopic examination of the synovial fluid may reveal a crystalline etiology for monarthritis. Monosodium urate crystals induce gout, usually in the toe, ankle, or midfoot, while calcium pyrophosphate crystals cause pseudogout, most often in the knee or wrist. Acute monarthritis is sometimes a manifestation of osteoarthritis or an early sign of a systemic arthritis such as rheumatoid or reactive arthritis. Processes underlying acute monarthritis can also evolve into a more chronic clinical picture as exemplified by the spondyloarthropathies.
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PMID:Monarthritis: differential diagnosis. 921 57

Septic arthritis is a medical and surgical emergency that if left untreated may lead to permanent joint disfigurement and loss of function. In the setting of chronic joint disease, the diagnosis, based on history and physical examination, may be difficult. A case is reported of a patient with a history of aspirate-proven gout presenting with symptoms of typical gouty exacerbation but diagnosed as septic arthritis and pseudogout.
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PMID:Septic arthritis and calcium pyrophosphate deposition disease in the setting of chronic gout. 946 76

Arthritis of the hallux metatarsophalangeal joint is a common disorder that affects shoewear, ambulation, and other activities of daily living. Etiologies include degenerative arthritis (hallux rigidus), crystal induced arthropathy (gout, pseudogout), rheumatoid arthritis, the seronegative spondyloathropathies, posttraumatic degeneration, and advanced hallux valgus. Accurate diagnosis and selection of the appropriate intervention depends on recognition of pertinent clinical and radiographic features. This study presents a synopsis of the senior author's (LCS) experience with 439 surgically treated patients with hallux metatarsophalangeal arthritis, focusing on origin and treatment.
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PMID:Hallux metatarsophalangeal arthritis. 958 62


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