Platelet Case Study from St. Jude/What we know and what we dont know about IgA deficiency and the risk for anaphylactic tran

Course overview

This presentation reviews transfusion support strategies in complex hematology patients, using a case of Glanzmann thrombasthenia with antiGPIIb/IIIa alloimmunization as the central teaching model. Attendees will learn how alloantibodymediated platelet refractoriness alters transfusion practice, why modified platelet products (HLAmatched, washed and saline resuspended, or volumereduced) are essential, and how therapeutic plasma exchange (TPE) can be used to reduce IgG burden before hematopoietic stem cell transplant.?The session also broadens to patients receiving cancer chemotherapy or undergoing transplant who are prone to recurrent transfusion reactions or have antibodies to public HLA antigens (e.g., antiBw), emphasizing tailored platelet selection to optimize safety and efficacy. This presentation will describe the structure and function of IgA, types of IgA deficiency, and test methods for the detection of IgA and anti-IgA. Survey findings regarding rare donor programs around the world regarding IgA deficiency as a blood phenotype will be reviewed.