Hemolytic anemia following intravenous gamma globulin administration
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A young homosexual man with immune thrombocytopenia recently had transient intravascular hemolysis during intravenous gamma globulin treatment. The hemolysis, manifested by a sharp decrease in hemoglobin and by a direct Coombs' test with a positive result, was mediated by anti-A antibody present in the gamma globulin preparation. In view of the increasing use of intravenous gamma globulin in the treatment of patients with immune cytopenia, this problem may result in crossmatching difficulties and should be recognized as a potential complication of therapy.
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