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Haematologica. 1989 May-Jun;74(3):283-8.

Prevention of non-hemolytic transfusion reactions with leucocyte-poor blood: a prospective study.


Twenty-five patients with homozygous beta-thalassemia, who complained of occasional nonhemolytic transfusion reactions (NHTR), were alternately transfused eight times with normal packed red cells (PRC) and leucocyte-poor blood prepared by three methods: cotton wool filtration (CWF), buffy coat removal after dilution with saline and upright spin (BCR), and microaggregate filtration (MAF). On overall, CWF-treated RBC concentrates (CWF-RBC) contained 0.02 x 10(9) leucocytes; BCR-RBC contained 0.4 x 10(9), MAF-RBC 1.3 x 10(9) and PRC 1.7 x 10(9). The frequencies of NHTR were: CWF, 0.02; BCR, 0.04; MAF, 0.20; PRC, 0.28. Compared to PRC, both CWF and BCR significantly reduced the frequency of NHTR (p less than 0.01), whilst MAF did not (p greater than 0.1). On the other hand, in one patient CWF caused the two most severe NHTR recorded in this study, both of which were characterized by anaphylaxis.

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