Transfusion-related acute lung injury/transfusion-associated circulatory overload in a child with non-transfusion dependent thalassemia and aplastic crisis due to acute parvovirus B19 infection.

We present a never-transfused girl with thalassemia intermedia who was admitted for febrile aplastic crisis due to human parvovirus B19. After a first transfusion of packed red blood cells, she developed pulmonary oedema. She improved with supportive care including the use of intravenous diuretics. Due to severe anaemia, she received a second blood transfusion, antibiotics for febrile neutropenia and intravenous γ globulin for control of the parvovirus infection. She had an uneventful recovery. The first of her male blood donors had an antibody against a patient's human leukocyte antigens type II antigen with a high mean fluorescent intensity. Our patient had clinical features and supportive laboratory evidence for mild transfusion-related acute lung injury (TRALI). However, she also met the criteria for transfusion-associated circulatory overload (TACO). We conclude that our patient likely suffered from TRALI/TACO, a consensus term proposed in 2019 for patients in whom TRALI cannot be distinguished from TACO or in whom both conditions occur simultaneously.

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Competing interests: None declared.