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  • Title: [Therapeutic effect and clinical findings in patients with MPO-ANCA associated vasculitis syndrome].
    Author: Yoshida A, Takeda A, Fukuda M, Toda S, Morozumi K.
    Journal: Ryumachi; 2000 Feb; 40(1):1-8. PubMed ID: 10783659.
    Abstract:
    We investigated to clarify the clinical findings, course and therapeutic effect in the patients with MPO (myeloperoxidase)-ANCA (anti-neutrophil cytoplasmic antibody) associated vasculitis syndrome. We analyzed clinical findings and data of 19 cases of MPO-ANCA associated vasculitis. These patients were diagnosed with clinical symptoms (fever, arthralgia, body weight loss, etc.), laboratory data (high titer of CRP, leukocytosis, thrombocytosis, and high titer of MPO-ANCA) and pathologic findings of necrotizing vasculitis. They were 14 male and 5 female aged 18 to 84 years (mean 65 years) and were treated with prednisolone and immunosuppressive agents, and additional therapy included pulse therapy and plasma exchange. Seven cases were dead within 3 months. Post-mortum examination showed that these cases died of pneumonitis, cerebral events and gastric bleeding. There was no mortal case induced by over-immunosuppression. In survival cases, the MPO-ANCA levels decreased rapidly after these therapies and these antibodies were maintained low levels (360 to 25 EU/l). Comparison of fatal cases and survival cases, there were difference in the initial dose of prednisolone (27 mg/day vs. 56 mg/day), the ratio of double filtration plasmapheresis (14% vs. 42%), and the ratio of immunosuppressive therapy (14% vs. 83%). The measurement of MPO-ANCA is useful makers of the diagnosis and effectiveness of the therapy in patients with MPO-ANCA associated vasculitis. We recommend the aggressive therapy, including prednisolone, immunosuppressive agents and plasma exchange for MPO-ANCA associated vasculitis. We believe that the aggressive therapy improve the survival rate of the patients with MPO-ANCA associated vasculitis.
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