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  • Title: A case of intravenous immunoglobulin-resistant Kawasaki disease treated with methotrexate.
    Author: Lee MS, An SY, Jang GC, Kim DS.
    Journal: Yonsei Med J; 2002 Aug; 43(4):527-32. PubMed ID: 12205742.
    Abstract:
    Kawasaki disease, an acute febrile vasculitis of unknown etiology, is usually treated with high doses of immunoglobulin (IVIG) and aspirin. However, 20% of children show persistent or recurrent fever despite IVIG, and coronary artery aneurysm progression. In such cases of resistance to IVIG treatment, repeated IVIG administration or the initiation of steroid therapy, and the use of cyclophosphamide have been reported. We aimed to show in this study that methotrexate (MTX) may be used as a treatment for Kawasaki disease resistant to IVIG treatment. We report the case of a 6-year old boy who was admitted at another hospital with an initial complaint of a fever for 5 days and skin rashes for 3 days. The patients fever persisted despite three courses of IVIG (2 gm/kg, 1 gm/kg, 1 gm/kg, respectively) over a 14-day period. On day 14 of his illness he showed a dilated right coronary artery, and on day 19 dexamethasone, at a daily dose of 0.3 mg/kg, was given but this resulted in defervescence. However, upon stopping the dexamethasone treatment, his fever recurred and he was transferred to our hospital. On days 31 and 38 of his illness, IVIG (400 mg/kg for 5 days, twice) was administered and from day 38 onwards the patient was given dexamethasone (0.6 mg/kg, daily) and MTX (10 mg/BSA, once weekly) whereupon his fever subsided and did not recur. On day 48 dexamethasone was replaced with prednisolone, which was subsequently tapered. The patient is now taking MTX and being observed on an outpatient basis. We report the case of a boy with IV-globulin resistant Kawasaki disease, who after repeated infusions of IVIG and steroid therapy showed fever recurrence, which that subsided after MTX treatment.
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