High-dose intravenous gamma-immunoglobulin infusion in the treatment of thrombotic thrombocytopenic purpura.

Thrombotic thrombocytopenic purpura has been treated with plasmapheresis, exchange transfusion, splenectomy, antiplatelet compounds, glucocorticoids, and vincristine sulfate infusion. We describe a patient with thrombotic thrombocytopenic purpura who has failed on treatment with plasmapheresis, antiplatelet compounds, glucocorticoids, and vincristine, was successfully treated with high-dose gamma-immunoglobulin infusion, and has been maintained in prolonged remission without further immunoglobulin infusion for more than 14 months at the time of this report.