IgA deficiency allergic transfusion reaction and its prevention and treatment strategies

IgA deficiency allergic transfusion reaction often occurs in patients with anti-IgA. When blood products containing IgA are transfused into these patients, it may lead to severe allergic transfusion reactions, which can be fatal in severe cases. This review summarizes the clinical manifestations and influencing factors of immunoglobulin A deficiency (IgAD), as well as the pathogenesis, laboratory test and prevention strategies of allergic transfusion reactions caused by IgA deficiency, so as to enhance prevention awareness of IgA deficiency allergic transfusion reaction in medical staff.