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The U– phenotype is extremely rare and is found predominantly in black African populations at a frequency of between 0.2 and 1.7%. In European populations, U– units are therefore rare,… Click to show full abstract
The U– phenotype is extremely rare and is found predominantly in black African populations at a frequency of between 0.2 and 1.7%. In European populations, U– units are therefore rare, with limited availability in the United Kingdom. Anti‐U is clinically significant and is known to cause hemolytic transfusion reactions (HTRs) and hemolytic disease of the fetus and newborn. It has been suggested that intravenous immunoglobulin (IVIG) may be considered as an option among supportive therapy for urgent transfusion when clinically significant antigen‐matched units are not available. We report three cases with anti‐U transfused with least‐incompatible RBC units, their outcomes, and their clinical management.
Journal Title: Transfusion
Year Published: 2019
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