Multiple transfusion fail to provoke antibodies against blood cell antigens in human infants

Transfusion
A M FlossL Knox

Abstract

We conducted studies of both red cell (RBC) and leukocyte (WBC) antibody formation in infants following multiple transfusions given during the first weeks of life. Fifty-three infants received 683 RBC transfusions from 503 different donors, plus 62 platelet, 4 granulocyte, and 53 fresh-frozen plasma units during the first 4 months of life. Three hundred fifty serum samples were obtained before, during, and after the transfusions. None of the infants formed unexpected RBC antibodies when tested at 37 degrees C by a two-cell low-ionic-strength solution antibody screen that included an anti-globulin phase. Twenty posttransfusion serums were negative when tested at room temperature. Lymphocytotoxic and granulocytotoxic WBC antibodies were measured in posttransfusion serums from 13 infants, and none were found. Despite exposure to many RBC and WBC antigens, no infants produced alloantibodies against blood cell antigens. Thus, immunologically mediated transfusion reactions should be quite rare in young infants, and this study supports recommendations of the American Association of Blood Banks Standards to omit repeat RBC compatibility testing during the first 4 months of life in infants whose initial RBC antibody screens reveal no un...Continue Reading

Citations

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