IMMUNE THROMBOCYTOPENIA IN AN ELDERLY PATIENT TREATED SUCCESSFULLY BY PULSE THERAPY WITH CYCLOPHOSPHAMIDE

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Thrombocytopenia due to immune mechanisms is rare and difficult to manage in elderly patients. We describe a case of an 89-year-old female with severe immune thrombocytopenia (ITP) who rapidly improved by pulse therapy with cyclophosphamide. She was admitted to our hospital because she had arthralgia in both sides of her femoral region since January 1999, aphthous stomatitis and ecchymosis of the leg since April 1999, and bloody phlegm in July 1999. On admission, her peripheral blood count revealed severe thrombocytopenia (0.1×104/μl). Her megakaryocyte count from bone marrow was increased to 512/μl without abnormal cells. Systemic lupus erythematosus was suspected because of strong-positive protein in the urine in addition to the clinical and hematological findings described above, but she was negative for all the autoantibodies examined. Finally, she was diagnosed as having ITP on the basis of high platelet-associated immunoglobulin G in addition to hematological and physical findings and she was treated with prednisolone. It was difficult to maintain her platelet count with only prednisolone, but 600 mg of cyclophosphamide rapidly increased her platelet count in spite of tapering the prednisolone. In September 2000, her platelet count was kept within normal limits by administration of 15 mg/day of prednisolon. It is suggested that immunosuppressive therapy for ITP using high-dose cyclophosphamide is useful in elderly patients as well as in juvenile adult patients.
福島医学会の論文

IMMUNE THROMBOCYTOPENIA IN AN ELDERLY PATIENT TREATED SUCCESSFULLY BY PULSE THERAPY WITH CYCLOPHOSPHAMIDE

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