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Suppression of post-apheresis autoantibody rebound in cryoglobulinemia and cold agglutinin hemolytic anemia.

We studied the effect of immunosuppressive treatment on the autoantibody rebound that follows autoantibody withdrawal accomplished by extracorporeal plasma treatment. The study was carried out on 9 patients, 8 having essential mixed cryoglobulinemia and 1 cold agglutinin hemolytic anemia. As immunosuppressive drugs we used either cyclophosphamide and prednisolone or arabinoside C and cyclophosphamide. The effect of immunosuppressive treatment on autoantibody rebound (Igm anti-IgG; IgM cold agglutinins) varied widely, a suppressive effect of varying degree having been observed in about half the cases treated with either drug regimen.