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Haemolysis , pure red cell aplsasia and red cell antibody formation associated with major and bidirectional ABO incompatible haematopoietic stem cell transplantation (CROSBI ID 281412)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Tomac, Gordana ; Bojanic, Ines ; Mazic, Sanja ; Vidovic, Ivana ; Raos, Mirela ; Golubic Cepulic, Branka ; Seiwerth Serventi, Ranka ; Kelecic, Jadranka ; Labar, Boris Haemolysis , pure red cell aplsasia and red cell antibody formation associated with major and bidirectional ABO incompatible haematopoietic stem cell transplantation // Blood transfusion, 19 (2017), 1-8. doi: 10.2450/2017.0322-16

Podaci o odgovornosti

Tomac, Gordana ; Bojanic, Ines ; Mazic, Sanja ; Vidovic, Ivana ; Raos, Mirela ; Golubic Cepulic, Branka ; Seiwerth Serventi, Ranka ; Kelecic, Jadranka ; Labar, Boris

engleski

Haemolysis , pure red cell aplsasia and red cell antibody formation associated with major and bidirectional ABO incompatible haematopoietic stem cell transplantation

Background. Acute and delayed haemolysis, alloimmunisation and pure red cell aplasia (PRCA) are potential complications after ABO incompatible haematopoietic stem cell transplantation (HSCT). The aims of this study were to investigate acute and delayed red blood cell (RBC) antibody-associated complications, including haemolysis, PRCA and alloimmunisation in major and bidirectional ABO incompatible HSCT. Materials and methods. We retrospectively examined the transplant courses of 36 recipients of bone marrow or peripheral blood stem cells from ABO incompatible donors and evaluated the current practice of performing plasmapheresis in patients with higher isoagglutinin titres. We investigated the role of ABO incompatibility in haematopoietic recovery, transfusion requirements, alloimmunisation and PRCA. Results. Laboratory signs of acute haemolysis were noted in five (14%) patients, one (3%) of whom had clinically overt haemolysis. Patients with haemolysis had IgM titres ≥1:8 and received >16 mL of RBC in the HSCT. In patients with higher titres, plasmapheresis performed prior to the transplant prevented acute haemolysis. Delayed haemolysis was not recorded in the follow up. Haematopoietic recovery and transfusion requirements did not differ notably between patients with and without haemolysis. De novo RBC antibodies were detected in two (5.5%) patients after HSCT, and PRCA was noted in one (3%) patient. Discussion. Carried out with adequate graft processing, plasmapheresis and blood component support, haemolysis is not a common complication after HSCT. Our results confirm that the occurrence of haemolysis depends on larger RBC volumes and higher isoagglutinin titres. Despite the reduction of patients' isoagglutinin titres by plasmapheresis, we still noted a critical combination for the development of laboratory signs of haemolysis (IgM titre ≥1:8 and RBC volume >16 mL). De novo immunisation to RBC antigens and PRCA are rare events following ABO incompatible HSCT.

haematopoietic stem cell transplantation ; AB0 incompatibility ; haemolysis ; isoagglutinin titres ; pure red cell aplasia

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Podaci o izdanju

19

2017.

1-8

objavljeno

1723-2007

2385-2070

10.2450/2017.0322-16

Povezanost rada

nije evidentirano

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