항-E, 항-M, 항-Jkb, 항-Lea 복합항체가 검출된 환자에서의 용혈성수혈부작용 경험 1예

Abstract

We reported a case of hemolytic transfusion reaction that was related to multiple RBC antibodies such as anti-E, anti-M, anti-Jkb and anti-Lea after serial RBC transfusions. A forty-nine year old female visited the emergency room (ER) with hematochezia. She had previously received 16 units of packed RBCs from 2003 to Jan 2007 for her intermittent esophageal varix bleeding. No specific antibodies were identified before this visiting. At the ER, under the request for packed RBCs, we identified anti-E antibody within her serum. Her blood type was AB, RhD＋ with the phenotype of CcDe. She received 5 units of E antigen negative RBCs. However, she showed hemolytic transfusion reactions such as mild fever with a decrease of hemoglobin from 11.4 g/dL to 6.8 g/dL after the transfusion. From the 8th to the 10th hospital day, another 3 units of E-antigen negative with the least incompatible RBCs were transfused to the patient, but the level of hemoglobin was not definitely increased. At the 14th hospital day, she received a final 2 units of leuko-reduced RBCs without E, M and Jkb antigens. Her hemoglobin was increased right after the final transfusion. We found that the patient's serum reacted with multiple RBC antibodies such as anti-E, anti-M, anti-Jkb and anti-Lea antibodies. She finally recovered from acute varix bleeding and was discharged on the 26th hospital day with the level of hemoglobin being 8.3 g/dL