High‐dose intravenous immunoglobulin for post‐transfusion purpura

Abstract
Five patients with post-transfusion purpura (four due to Zw(a), one presumably due to HLA antibodies) were treated with intravenous immunogobulin (IgG) at doses of 0.4 g per kg body weight. IgG therapy was immediately effective as indicated by cessation of bleeding and rise of platlet counts in 4 out of 5 cases.