Journal
TRANSPLANTATION
Volume 84, Issue 12, Pages S17-S19Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/01.tp.0000296019.85986.af
Keywords
A/B antibody; A/B antibody titration; ABO antibody; ABO antibody titration; direct agglutination; immunoglobulin G (IgG); immunoglobulin M (IgM); indirect agglutination
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Data from 60 consecutive ABO-incompatible kidney transplantations performed in Stockholm, Sweden; Freiburg, Germany; and Uppsala, Sweden, revealed significant variation in preoperative A/B antibody levels, with median titers of 1:32, 1:128, and 1:8, respectively. We wanted to investigate whether these differences were method-related. The same samples from 21 healthy blood donors were analyzed in the three centers using current local methods. Results confirmed method-related differences, with higher A/B titers in Freiburg and lower titers in Uppsala compared with Stockholm. Results for the same sample differed by a median of three (range 0 to 6) titer steps. When the same number of samples were analyzed in the three centers using the same gel method and the same test erythrocytes, results differed by a median of one titer step (range 0 to 4) for the same sample. In conclusion, gel hemagglutination technique significantly decreases intercenter variation compared with tube technique.
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