在患有血红蛋白SS基因型的儿科状细胞病患者中,构成性高凝血性
Raizl G Sussman1, Joy Mburu1, MacGregor Steele2
1Division of Haematology/Oncology, The Hospital for Sick Children, Toronto, Ontario, Canada.
Research and practice in thrombosis and haemostasis
|April 12, 2024
概括
与HbSC患者和健康儿童相比,患有HbSS基因型的儿科状细胞病 (SCD) 患者表现出高血凝率,表明高凝血状态. 血液静止的这种差异是理解SCD病理生理学的关键.
科学领域:
- 血液学 血液学 血液学
- 儿科医学 儿科医学
- 血管生物学 血管生物学
背景情况:
- 状细胞疾病 (SCD) 病理生理学涉及炎症和静血激活,导致诸如血管闭塞危机和中风等并发症.
- 在血红蛋白SS (HbSS) 和血红蛋白SC (HbSC) 基因型之间存在不同的临床表现,以及在稳定状态与危机期间,但儿科差异尚不清楚.
- 了解这些变异对于儿童的向性SCD治疗至关重要.
研究的目的:
- 为了比较儿科患者在稳定状态,危机和随访期间具有HbSS和HbSC基因型的血静活动.
- 为了比较儿科SCD患者 (HbSS和HbSC) 和健康儿童之间的静血活性.
主要方法:
- 使用全血血栓形成显微镜 (TEG) 来评估整体静血活动和凝血参数.
- 流细胞测量被用来评估血小板和红血球上的血凝剂表面表达.
主要成果:
- 在HbSS和HbSC患者中的稳定状态,危机和随访小组中,TEG没有显示出凝血参数的显著差异.
- 与健康儿童相比,HbSC患者没有显著的TEG差异.
- HbSS患者的R时间显著缩短,凝块幅度/生成率更大,表明构成性高凝血状态,并未通过血小板或红细胞激活的流细胞计检测到.
结论:
- 与HbSC患者和健康儿童相比,具有HbSS基因型的儿科患者表现出构成性激活血静.
- 在HbSS中观察到的高凝血状态需要进一步调查其对临床结果的影响.
- 需要确定治疗干预对SCD中这种高凝血状态的影响.
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