Anti-D alloimmunization after platelet transfusion

Abstract

Human platelets do not express any antigens of the Rhesus system. However, platelet concentrates contain the variable volume of contaminating RBCs, which may induce RhD alloimmunization when transfused in a RhD negative subject. Though low rate of anti-D alloimmunization related to platelet transfusion, the development of RhD and non-RhD antibodies cannot be ignored. Thus, transfusion practices could allow the transfusion of RhD positive platelet units to RhD negative patients, with the exception of females of childbearing age. Keywords: Platelet, Transfusion, Alloimmunization, Donor, Antibody, Antigen.