量化狼抗凝剂干扰内在凝血因子活动的测定和评估基于SCT的方法的校正性能
Yu Yang1, Yuanyuan Li1, Anna Jiang1
1Department of Clinical Laboratory, Peking University First Hospital, Beijing, China.
概括
狼抗凝剂 (LA) 可以错误地降低凝血因子水平. 一种新的SCT校正试验有效地减轻了这种干扰,改善了抗脂综合征或狼患者的准确性.
科学领域:
- 血液学 血液学 血液学
- 临床化学 临床化学
- 免疫学 免疫学 免疫学
背景情况:
- 狼抗凝剂 (LA) 干扰凝血试验.
- LA可以错误地减少内在的凝血因子活动.
- LA强度和测量干扰之间的定量关系尚不清楚.
研究的目的:
- 为了研究LA强度和干扰凝血因子测定之间的定量关系.
- 为了评估使用SCT确认试剂来减少LA干扰的修改试验的有效性.
主要方法:
- 研究了100名抗脂综合征或SLE的LA阳性患者.
- 测量FVIII:C,FIX:C和FXI:C使用一阶段和修改的SCT确认试验.
- 计算伪降低度 (PLD) 来量化校正效率.
主要成果:
- 分别在27%,23%和26%的患者中观察到减少的FVIII:C,FIX:C和FXI:C.
- LA强度与FIX:C和FXI:C降低相关,但不是FVIII:C.
- 在66.7% (FVIII:C),82.6% (FIX:C) 和92.3% (FXI:C) 的受影响病例中,SCT测定纠正了因子水平.
结论:
- FVIII:C,FIX:C和FXI:C对LA干扰的敏感性不同.
- 基于SCT的校正有效地减轻了LA干扰,特别是在FXI.
- 这种方法避免了对LA阳性患者因子缺陷的错误分类.
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