Clinical Assessment and Management of Cytopenias in Lupus Patients
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Anemia, leukopenia, and/or thrombocytopenia can occur as a result of non-immune- and immune-mediated mechanisms in patients with systemic lupus erythematosus. Although the differential diagnosis of these cytopenias is broad and warrants a thorough evaluation, lupus disease activity and medications are common etiologic factors. Corticosteroids are the mainstay of initial treatment for immune-mediated hemolytic anemia and severe thrombocytopenia; immunosuppressive agents such as mycophenolate mofetil or azathioprine are often added for their steroid-sparing effects. Rituximab and intravenous immunoglobulin can be considered for refractory cytopenias based on a large body of anecdotal evidence and case series. Newer biologic agents such as belimumab or epratuzumab have yet to be studied specifically in systemic lupus erythematosus-mediated hematologic disorders.
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