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  • Title: [The clinical analysis of 14 cases of systemic lupus erythematosus complicated by thrombotic thrombocytopenic purpura].
    Author: Cui J, Zhu TN, Zhao YQ, Zhang FC.
    Journal: Zhonghua Nei Ke Za Zhi; 2013 May; 52(5):383-6. PubMed ID: 23945302.
    Abstract:
    OBJECTIVE: To analyze the clinical features, diagnosis and treatment of thrombotic thrombocytopenic purpura (TTP) in patients with systemic lupus erythematosus (SLE). METHODS: Clinical manifestations, laboratory findings, diagnosis,treatment and prognosis of 14 SLE patients with TTP were retrospectively analyzed. RESULT: Of the 14 patients diagnosed with SLE and TTP, 4 were men and 10 were women. The median age at diagnosis was 23 (17-69) years old. In five patients, the onset of SLE preceded TTP, and in nine patients SLE and TTP occurred simultaneously. All the 14 patients had thrombocytopenia and hemolytic anemia, 12 had fever, 11 had neurologic abnormalities, and 11 had renal dysfunction. Eight patients presented with the classic pentad of symptoms. Six patients were given steroids (alone or in combination with intravenous immunoglobulin and cyclophosphamide), and eight patients were treated with steroids in combination with plasmapheresis, with response rates of 2/6 and 6/8, respectively. Six patients died, with overall mortality rate of 6/14. No patients relapsed during the follow-up period. CONCLUSIONS: SLE and TTP share some similar clinical symptoms. As a result, repeated examinations of peripheral blood smears are very important for early diagnosis. The renal damage in patients of co-existing diseases is more serious than those with TTP alone or SLE alone. Early diagnosis and prompt treatment with plasma exchange and steroids may improve the prognosis in SLE patients with TTP.
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