title: Hyperhaemolysis syndrome in a patient with myelofibrosis.
abstract: Hyperhaemolysis syndrome is well recognised in patients with sickle cell disease and beta-thalassaemia major, but has not been described in patients with other haematological diseases. We describe a case of fatal post-transfusion hyperhaemolysis occurring in a lady with myelofibrosis evolving into acute myeloid leukaemia. No free antibodies were identified in either pre- or post-transfusion serum samples. Since her haemoglobin (Hb) level after the reaction was very much lower, than of would have been the case if only the transfused red cells had haemolysed, it seems likely that this severe haemolytic transfusion reaction was an example of the so-called hyperhaemolysis syndrome.
authors.affiliation: Department of Haematology Royal Marsden Hospital, Sutton Surrey, UK. jennifer.treleaven@rmh.nthames.nhs.uk
authors.forename: Jennifer G
authors.initials: JG
authors.lastname: Treleaven
authors.forename: Nay
authors.initials: N
authors.lastname: Win
mesh_terms: D000740:Anemia / Q000209:etiology; D001853:Bone Marrow / Q000473:pathology; D005260:Female; D006461:Hemolysis; D006801:Humans; D008875:Middle Aged; D009196:Myeloproliferative Disorders / Q000150:complications*; D055728:Primary Myelofibrosis / Q000150:complications* / Q000473:pathology; D065227:Transfusion Reaction