在心脏移植患者中常规查HLA抗体 - - 这会影响临床决策吗?
Tor Skibsted Clemmensen1, Johanne Hjort Baatrup2, Kamilla Pernille Bjerre1
1Department of Cardiology, Aarhus University Hospital, Aarhus, Denmark.
Clinical transplantation
|March 20, 2024
概括
捐赠者特异性抗体 (DSAs) 在长期心脏移植患者中的约25%中被发现. 虽然DSA与移植功能的恶化和心脏全移植血管病变 (CAV) 有关,但它们不会影响患者的生存率.
科学领域:
- 心脏病学 心脏病学
- 移植免疫学 移植免疫学
- 腎臟病學 (nephrology) 是一種醫學專業.
背景情况:
- 捐赠者特异性抗体 (DSAs) 是长期心脏移植 (HTx) 受体的一个重大问题.
- 评估DSA对移植功能,心脏全移植血管病变 (CAV) 和患者死亡率的影响对于改善结果至关重要.
研究的目的:
- 评估心脏移植患者的临床结果,包括有或没有捐赠者特异性抗体 (DSA).
- 确定DSA存在与移植功能,CAV发育和进展以及死亡率之间的关系.
主要方法:
- 一组193名长期HTx患者在2016年至2022年期间接受了DSA监测.
- 通过冠状动脉血管图,通过心声图和心脏生物标志物监测患者的CAV.
- 随访延长至5年或直到2023年6月30日死亡/审查.
主要成果:
- 在大约25%的患者中检测到DSA.
- 阳性DSA患者表现出较差的移植功能,较高的NT-proBNP和托罗邦素T水平,以及更普遍的CAV.
- DSA存在与CAV进展的风险较高相关 (HR 2.7),但与死亡率的增加无关 (HR 1.2).
结论:
- 长期HTx患者的常规DSA查确定了具有抗体存在的显著子集.
- DSA与不良的移植结果有关,包括功能障碍和加速的CAV,但生存率没有降低.
- 这些发现强调了监测DSA对于移植后的移植健康管理的重要性.
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