医学
地中海贫血
溶血
内科学
抗体
自身抗体
三级护理
血清铁蛋白
免疫学
库姆斯试验
输血
胃肠病学
铁蛋白
免疫球蛋白G
作者
Brijesh Yadav,Rajendra Chaudhary,Harsha Shrivastava,Priti Elhence
出处
期刊:Labmedicine
[Oxford University Press]
日期:2022-12-10
卷期号:54 (4): 406-410
标识
DOI:10.1093/labmed/lmac140
摘要
This study was conducted to estimate prevalence of direct antiglobulin test (DAT) positivity and its impact on transfusion support in patients with thalassemia.The DAT testing was performed for patients with β-thalassemia who received transfusion from November 2021 to March 2022. Elution was done for DAT-positive samples.Of 180 patients, 21 (11.6%) were DAT positive. Immunoglobulin G (IgG) was present in 4 (19%) and IgG+C3d was present in 8 (38%). Only complement was present in 9 (42.8%) patients. The IgG-reactive DATs were associated with pan-reactive eluate. Patients who were DAT-positive had significantly higher levels of serum bilirubin, ferritin, and IgG than those who were DAT-negative.Autoantibody formation in multiply transfused thalassemia patients is common and merits equal attention as alloimmunization. It is particularly important as DAT-positive red blood cells may undergo clinically significant hemolysis, which may increase the transfusion requirements with associated sequalae such as increased serum ferritin and splenomegaly.
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