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Updated: Jul 19, 2025

Routine Screening Method for Microparticles in Platelet Transfusions
Published on: January 31, 2018
Therapeutic plasma exchange in alloimmune platelet refractoriness
Sheharyar Raza1, Christopher J Patriquin1, Karen Yee2
1Division of Hematology, University of Toronto, Canada.
Abstract:
Patients with alloimmune platelet refractoriness can present complex clinical conundrums. Herein we describe a case of platelet refractoriness in the setting of combined HLA and HPA alloimmunization in a patient with acute myeloid leukemia and life-threatening bleeding. We discuss causative antibodies and compare prevailing therapeutic modalities. We highlight plasma exchange as a potentially feasible, repeatable, and personalized treatment option for patients with extensive platelet alloimmunization who require transfusion.
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