王春海 王文梅 孙然
[摘要] ABO亚型主要表现为抗原凝集强度的减弱、混合视野的凝集反应、抗体效价降低、正反定型不符;其中混合视野的凝集反应是B3亚型最大的血清学特征,通过回顾性分析整理1例疑似B3亚型的血型血清学试验结果、唾液中和试验结果、亲和力试验结果、家系ABO血型调查结果,并结合病史,最终确定先证者及先证者儿子均为B3亚型。因此掌控B3亚型的实验室特征,B3亚型鉴别诊断要点,应用正确试验方法准确鉴定B3亚型,选择合适的血液输注,可以减少输血不良反应的发生。
[关键词] 血清学特征;B3亚型;混合视野;亲和力试验;输血不良反应
[中图分类号] R457.1 [文献标识码] C [文章编号] 1673-9701(2021)11-0147-03
Analysis on the blood group serology and genealogy of B3 subtype patients
WANG Chunhai1 WANG Wenmei2 SUN Ran1
1.Department of Blood Transfusion, Inner Mongolia Baogang Hospital, Baotou 014010, China; 2.Intensive Care Unit, the First Affiliated Hospital of Baotou Medical College,Inner Mongolia University of Science and Technology, Baotou 014010, China
[Abstract] ABO subtypes are mainly featured by decreased antigen agglutination intensity,agglutination reaction in mixed vision, decreased antibody titer and inconsistent positive and negative typing. Among them, the agglutination reaction in mixed vision is the most important serological feature of B3 subtype. Through retrospective analysis and sorting out of the blood group serological test results, saliva neutralization test results, affinity test results and genealogical ABO blood type survey results of a suspected B3 subtype, and combining with medical history, it was finally determined that the proband and the proband′s son were both B3 subtypes.Therefore, controlling the laboratory features of B3 subtype, the key points of differential diagnosis of B3 subtype, applying the correct test methods to accurately identify B3 subtype, and selecting the appropriate blood transfusion can reduce the incidence of adverse reactions of blood transfusion.
[Key words] Serological features; B3 subtype; Mixed vision; Affinity test; Adverse reactions of blood transfusion
ABO血型是人類最重要血型系统,常见的表型有A、B、O、AB,但在这之外还存在着一小部分ABO亚型,亚型在人群中发生的频率不高,但常表现正反定型不一致、抗原凝集强度的减弱,导致血型鉴定困难[1-4]。B3是ABO血型较为常见的一种弱表现型,其最大特征是混合视野凝集,即B3细胞与抗-B和大多数抗-AB孵育后出现一些由数个红细胞形成的小凝集块,并被绝大部分游离的非凝集红细胞包围[5]。混合视野凝集常见以下几种情况:①A3/B3;②急性非淋巴细胞白血病;③ABO血型不合的骨髓移植;④非O型人近期输注了O型血,需结合病史加以鉴别。现将我院1例B3亚型先证者血清学及输血治疗原则回顾性病历资料,现报道如下。
1 资料与方法
1.1 一般资料
先证者,女,52岁,左卵巢囊肿,无输血史,2019年6月入住我院妇产科,拟行择期手术,常规备血,奥森多全自动血型仪鉴定结果:第二柱(抗-B)为混合外观2+mf,第五柱(A1细胞)为4+,出现正反定型不符,进一步作血清学复核,并随访采集先证者父亲、母亲、儿子的血型标本检测。……