通过四种不同的方法对弱D与弱反应D进行血清学比较
Dibyajyoti Sahoo1, Girija Nandini Kanungo2, Rachita Behera2
1Department of Transfusion Medicine, JIPMER Blood Centre, JIPMER, Puducherry, India.
Asian journal of transfusion science
|January 17, 2025
概括
血清学测试往往无法区分弱D和反应较弱的D红细胞. 建议进行进一步的基因型鉴定,以区分这些血型,以便进行准确的输血实践.
科学领域:
- 输血医学 输血医学
- 免疫学 免疫学 免疫学
- 血液学 血液学 血液学
背景情况:
- 弱D红细胞表现出减少的D抗原表达,需要间接抗球蛋白测试 (IAT) 来检测.
- 反应较弱的D细胞在标准的血液分组方法中显示的反应强度低于2+.
- 准确识别弱D变体对于预防血解性输血反应至关重要.
研究的目的:
- 评估各种血清学方法在区分弱D和弱反应D红细胞方面的性能.
- 评估 RhD 类型的一致性,跨不同平台和 antisera.
- 为弱D和弱反应D血型的临床管理提供建议.
主要方法:
- 分析了来自RhD阴性个体和RhD阳性个体的血液样本,其反应较弱 (<2+).
- 使用凝卡,使用两种不同的抗血清,幻灯片方法和固态红细胞粘附 (SPRCA) 的管方法进行了RhD类型化.
- 所有样品都经历了重复的RhD类型测试,在四个平台上使用不同的抗菌剂.
主要成果:
- 在27,245个样本中,945个 (3.46%) 是 RhD 阴性,其中16个 (1.7%) 被确定为弱D阳性.
- 在四个平台上,14个弱D阳性样本显示了<2+对某些抗血清的反应.
- 在26,300个RhD阳性样本中,有21个 (0.079%) 的血清学弱 (<2+),超过50%的RhD检测在重复测试时呈阴性,使用不同的抗血清.
结论:
- 目前各种平台的血清学测试不足以可靠地区分弱D和反应较弱的D红细胞.
- 弱反应的D应与弱反应的D进行类似的管理,直到可以进行最终的基因型鉴定.
- 基因造型对于精确分类和管理这些D变体至关重要.
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