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A 73-year-old Greek woman presented with symptomatic anaemia requiring red cell transfusion in the setting of progressive chronic lymphocytic leukaemia (CLL). Based on a negative antibody screen, two units of red blood cells (RBCs) were provided for transfusion. During the transfusion, the patient developed an acute haemolytic transfusion reaction (HTR), but recovered with supportive measures. Subsequent antibody investigation confirmed that the patient had an anti-Wb antibody and that the implicated RBC unit was Wb-positive. This is the first report of an anti-Wb causing a clinically significant acute HTR in the literature. |
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