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Antiphospholipid syndrome: Clinical and immunologic manifestations and patterns of disease expression in a cohort of 1,000 patients

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TLDR
An association with SLE, the patient's sex, and the patient’s age at disease onset can modify the disease expression and define specific subsets of APS.
Abstract
Objective. To analyze the clinical and immunologic manifestations of antiphospholipid syndrome (APS) in a large cohort of patients and to define patterns of disease expression. Methods. The clinical and serologic features of APS (Sapporo preliminary criteria) in 1,000 patients from 13 European countries were analyzed using a computerized database. Results. The cohort consisted of 820 female patients (82.0%) and 180 male patients (18.0%) with a mean +/- SD age of 42 +/- 14 years at study entry. "Primary" APS was present in 53.1% of the patients; APS was associated with systemic lupus erythematosus (SLE) in 36.2%, with lupus-like syndrome in 5.0%, and with other diseases in 5.9%. A variety of thrombotic manifestations affecting the majority of organs were recorded. A catastrophic APS occurred in 0.8% of the patients. Patients with APS associated with SLE had more episodes of arthritis and livedo reticularis, and more frequently exhibited thrombocytopenia and leukopenia. Female patients had a higher frequency of arthritis, livedo reticularis, and migraine. Male patients had a higher frequency of myocardial infarction, epilepsy, and arterial thrombosis in the lower legs and feet. In 28 patients (2.8%), disease onset occurred before age 15; these patients had more episodes of chorea and jugular vein thrombosis than the remaining patients. In 127 patients (12.7%), disease onset occurred after age 50; most of these patients were men. These patients had a higher frequency of stroke and angina pectoris, but a lower frequency of livedo reticularis, than the remaining patients. Conclusion. APS may affect any organ of the body and display a broad spectrum of manifestations. An association with SLE, the patient's sex, and the patient's age at disease onset can modify the disease expression and define specific subsets of APS.

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The antiphospholipid syndrome.

TL;DR: The broad spectrum of renal diseases that have been observed in association with this syndrome are discussed, and the impact that APS may have on pre-existing renal disease as well as current recommendations for treatment of APS are discussed.
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Catastrophic antiphospholipid syndrome: international consensus statement on classification criteria and treatment guidelines

TL;DR: Anticoagulation, corticosteroids, plasma exchange, intravenous gammaglobulins and, if associated with lupus flare, cyclophosphamide, are the most commonly used treatments for catastrophic APS patients.
References
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Journal ArticleDOI

The 1982 revised criteria for the classification of systemic lupus erythematosus

TL;DR: The 1971 preliminary criteria for the classification of systemic lupus erythematosus (SLE) were revised and updated to incorporate new immunologic knowledge and improve disease classification and showed gains in sensitivity and specificity.
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Revised criteria for the classification of rheumatoid arthritis.

TL;DR: The Bulletin on the Rheumatic Diseases has published all of the classification criteria for the rheumatic diseases to date, and these new revised classified criteria for rheumatoid arthritis are very important as they should provide understanding of the possibly changing face of rheumatism.
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Revised criteria for the classification of rheumatoid arthritis.

TL;DR: The Bulletin on the Rheumatic Diseases has published all of the classification criteria for rheumatic diseases to date as mentioned in this paper, and these new revised classification criteria are very important as they should provide understanding of the possibly changing face of rheumatoid arthritis.
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Preliminary criteria for the classification of systemic sclerosis (scleroderma)

TL;DR: A multicenter, ongoing study of early-diagnosed cases of systemic sclerosis and comparison patients with systemic lupus erythematosus, polymyositis/dermatomyositis, and Raynaud's phenomenon was conducted in order to develop classification criteria for systemic sclerosis.
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