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  • Title: When O Bites Back: Unrecognized Acute Hemolytic Reaction from Out-of-Group HLA-Compatible Platelet Transfusion.
    Author: Pasion JO, Song LH, McCusker MG, Shimer L, Bryant A, McGann HL, Fontaine MJ.
    Journal: Ann Clin Lab Sci; 2021 Mar; 51(2):267-270. PubMed ID: 33941569.
    Abstract:
    Managing a platelet blood product inventory in a hospital-based transfusion service (TS) is challenging. Thus, to optimize platelet inventory availability and to prevent excess outdating, most tertiary care center-based TSs do not require ABO-identical platelet (PLT) transfusions. To mitigate the risk of hemolysis associated with the transfusion of high titer ABO antibody-containing PLT, our institutional policy allows the transfusion of PLT containing ABO-incompatible plasma only if PLT is re-suspended in platelet additive solution (PAS). Despite the steps taken to reduce the risk of hemolytic transfusion reactions to PLT transfusions at our institution, our center has observed hemolytic reactions to PLT in PAS. The current case study highlights the importance of recognizing a hemolytic reaction (HTR) from ABO-incompatible PLT transfusions and discusses the current strategies and recommendations to mitigate this risk.
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