Reacción transfusional hemolítica retardada por aloanticuerpo anti-E / Reação transfusional hemolítica tardia por aloanticorpo anti-E / Delayed hemolytic transfusion reaction by anti-E alloantibody

Se presentó el caso de una señora de 47 años, grupo sanguíneo O Rh D positivo, G4P2A2, sin antecedente transfusional, que requería intervención quirúrgica por fibroma uterino sangrante. Las pruebas pretransfusionales resultaron compatibles, transfundiéndole dos concentrados de hematíes, sin presentar manifestaciones clínicas; trascurridos siete días, presentó una crisis hemolítica, con caída brusca de los parámetros hematológicos, palidez cutáneo-mucosa e íctero. Los estudios inmunohematológicos fueron positivos; la muestra de sangre de la enferma fue incompatible con un hijo, esposo y los hematíes transfundidos. Seis meses después se identificó un aloanticuerpo anti-E (es aquél anticuerpo que se produce como resultado de la exposición de un organismo a antígenos extraños) (128 diluciones) en la paciente. Se concluye que la paciente se aloinmunizó durante sus embarazos con un anticuerpo anti-E, donde la transfusión sanguínea fue el estímulo antigénico causante de la reacción transfusional hemolítica tardía(AU)

We present the case of a 47-year-old woman, blood group O Rh D positive, G4P2A2, with no transfusion history, which required surgical intervention due to bleeding uterine fibroma. The pretransfusional tests were compatible, transfusing two concentrates of red blood cells, without presenting clinical manifestations; after seven days, he presented a haemolytic crisis, with abrupt fall in hematological parameters, cutaneous-mucosal pallor and icterus. The immunohematological studies were positive; the patient's blood sample was incompatible with a son, husband and the transfused red blood cells. Six months later, an anti-E alloantibody (128 dilutions) was identified in the patient. It is concluded that the patient was alloimmunized during her pregnancies with an anti-E antibody, where the blood transfusion was the antigenic stimulus causing the late hemolytic transfusion reaction. Apresentamos o caso de uma mulher de 47 anos, grupo sanguíneo O Rh D positivo, G4P2A2, sem histórico transfusional, que necessitou de intervenção cirúrgica devido ao sangramento do fibroma uterino. Os exames pré-transfusionais foram compatíveis, transfundindo dois concentrados de hemácias, sem apresentar manifestações clínicas; Após sete dias, apresentou crise hemolítica, com queda abrupta nos parâmetros hematológicos, palidez cutâneo-mucosa e icterícia. Os estudos imuno-hematológicos foram positivos; a amostra de sangue do paciente era incompatível com um filho, marido e hemácias transfundidas. Seis meses depois, um aloanticorpo anti-E (128 diluições) foi identificado no paciente. Conclui-se que a paciente foi aloimunizada durante a gestação com anticorpo anti-E, sendo a hemotransfusão o estímulo antigênico causador da reação transfusional hemolítica tardia(AU)

Apresentamos o caso de uma mulher de 47 anos, grupo sanguíneo O Rh D positivo, G4P2A2, sem histórico transfusional, que necessitou de intervenção cirúrgica devido ao sangramento do fibroma uterino. Os exames pré-transfusionais foram compatíveis, transfundindo dois concentrados de hemácias, sem apresentar manifestações clínicas; Após sete dias, apresentou crise hemolítica, com queda abrupta nos parâmetros hematológicos, palidez cutâneo-mucosa e icterícia. Os estudos imuno-hematológicos foram positivos; a amostra de sangue do paciente era incompatível com um filho, marido e hemácias transfundidas. Seis meses depois, um aloanticorpo anti-E (128 diluições) foi identificado no paciente. Conclui-se que a paciente foi aloimunizada durante a gestação com anticorpo anti-E, sendo a hemotransfusão o estímulo antigênico causador da reação transfusional hemolítica tardia(AU)

Reacción hemolítica transfusional tardía en un paciente con anemia de células falciformes: reporte de un caso / Delayed hemolytic reaction to transfusion in sickle cell anemia: report of one case

Sickle cell anemia was a rare disease in Chile, especially in adults, however the recent immigration wave from Haiti is changing this scenario. We report a 29 year old black female from Haiti with a non-disclosed history of sickle cell anemia. She was transfused with two units of red blood cells, found unconscious and with jaundice five days later and admitted to the hospital. On admission she had a hemoglobin of 3.3 g/dL, a total bilirubin of 5.08 mg/dL, a LDH of 1,306 Ui/L. She was transfused again, worsening her condition. An alloimmunization and delayed hemolytic reaction was suspected. A direct Coombs test was positive. She was treated with steroids and her serum hemoglobin rose progressively.

Serious Adverse Transfusion Reactions Reported in the National Recipient-Triggered Trace Back System in Korea (2006-2014)

BACKGROUND: Adverse transfusion reactions (ATRs) are clinically relevant to patients with significant morbidity and mortality. This study aimed to review the cases of ATR reported in the recipient-triggered trace back system for a recent nine-year period in Korea. METHODS: Nine-year data obtained from 2006 to 2014 by the trace back system at the Division of Human Blood Safety Surveillance of the Korean Centers for Disease Control (KCDC) were reviewed. The suspected cases were assessed according to six categories: (i) related to, (ii) probably related to, (iii) probably not related to, (iv) not related to transfusion, (v) unable to investigate, and (vi) under investigation. RESULTS: Since 2006, 199 suspected serious ATRs were reported in hospitals and medical institutions in Korea, and these ATRs were reassessed by the division of Human Blood Safety Surveillance of the KCDC. Among the reported 193 cases as transfusion related infections, hepatitis C virus (HCV) infection (135, 67.8%) was reported most frequently, followed by hepatitis B virus (HBV) infection (27, 13.6%), HIV infection (13, 6.5%), syphilis (9, 4.5%), malarial infection (4, 2.0%), other bacterial infections (3, 1.5%), HTLV infection (1, 0.5%), and scrub typhus infection (1, 0.5%), respectively. Of the 199 cases, 13 (6.5%) cases were confirmed as transfusion-related (3 HCV infections, 3 malarial infections, 1 HBV infection, 2 Staphylococcus aureus sepsis, 3 transfusion-related acute lung injuries, and 1 hemolytic transfusion reaction). CONCLUSIONS: This is the first nationwide data regarding serious ATRs in Korea and could contribute to the implementation of an effective hemovigilance system.