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KMID : 0387720130240030222
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Korean Journal of Blood Transfusion
2013 Volume.24 No. 3 p.222 ~ p.232
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Analysis of ABO Blood Discrepancies and Transfusion Experiences in Chonnam National University Hospital
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Heo Min-Seok
Cho Duck
Park Hye-Ryoen
Shin Myung-Geun
Shin Jong-Hee
Suh Soon-Pal
Ryang Dong-Wook
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Abstract
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Background: ABO blood group discrepancy occurs when the results of red cell tests do not agree with those of the serum test. In order to select the proper blood units for transfusion, clarification of the cause of ABO discrepancies is essential. We analyzed the cases and recent actual transfusion experiences at Chonnam National University Hospital (CNUH).
Methods: In total, among pre-transfusion blood samples at CNUH between January 2012 and July 2013, 55 cases of ABO discrepancies were analyzed retrospectively.
Results: The discrepancy incidence was 0.14%. Problems with serum were the most common cause of ABO discrepancies, with 31 cases (56.4%), and extra serum reactivity due to cold allo-antibodies accounted for the highest frequency (n=7). There were three cases of non-specific aggregations caused by commercial RBC constituents and aggregation was not observed when a re-test was performed with other commercial RBCs or self-prepared human RBCs. Two of three cases with mix-field aggregations involved a pair of twins after in vitro fertilization - embryo transfer (IVF-ET). Among 55 patients, 20 were actually transfused, and all but four cases had weaker or identical RBC units and stronger or identical plasma units.
Conclusion: There were newly revealed ABO discrepancies caused by non-specific aggregations of commercial RBCs and in twins after IVF-ET. In addition, investigation of actual transfusion experiences in patients with ABO blood group discrepancies would be helpful.
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KEYWORD
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ABO discrepancy, Chimerism, Transfusion
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