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  • Title: Implementation of a strategy to prevent TRALI in a regional blood centre.
    Author: Insunza A, Romon I, Gonzalez-Ponte ML, Hoyos A, Pastor JM, Iriondo A, Hermosa V.
    Journal: Transfus Med; 2004 Apr; 14(2):157-64. PubMed ID: 15113380.
    Abstract:
    Transfusion-related acute lung injury (TRALI) can be a life-threatening complication of transfusion and it is probably underdiagnosed. Human leucocyte antigen (HLA) and granulocyte antibodies are thought to play a major role, but preventive measures are difficult to implement. In our regional blood centre, we implemented a preventive strategy avoiding donor deferral. Previously, pregnant apheresis donors were screened for HLA antibodies, and those with positive results were assigned to a plasma-only protocol. Plasma from these donors and from all previously pregnant whole blood donors was diverted for protein fractionation. Plasma-poor red blood cells (in additive solution, buffy coat removed) and platelets (pools with additive solution) were prepared. Prestorage leucodepletion was also applied. We found HLA antibodies in 18.1% of previously pregnant apheresis donors, and our strategy caused a 6.0% loss of apheresis platelets, a 4.8% increase of apheresis fresh frozen plasma (FFP) and a 7.8% loss of transfusable apheresis FFP. The effect on FFP from whole blood donors could be compensated. The platelet preparation method reduced the mean volume of plasma from each donor to 24.4 mL. Fifteen months after the start of our strategy, no cases of TRALI have been reported. Our experience shows that a practical strategy to prevent TRALI is feasible.
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