Abstract

Thrombotic thrombocytopenic purpura (TTP) is an uncommon clinical syndrome and is rarely associated with systemic lupus erythematosus (SLE). Diagnosis of TTP in patients with SLE, especially those who are pregnant, is challenging. We report the case of a pregnant woman with a high level of anti-SS-A antibody (162,143 U/mL) and fulminant TTP. The patient responded to plasma exchange treatment. Recent studies indicate that patients with SLE and another serologic abnormality, such as the presence of antiphospholipid antibody, may be at high risk for TTP. We explore the possible pathogenesis of acute TTP in patients with SLE and summarize the risk factors for acute TTP in patients with SLE and the current treatments for SLE-associated TTP.

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