对hs-cTnI和hs-cTnT变异的方法评估和临床解释:重新评估
Aldo Clerico1, Martina Zaninotto2, Mario Plebani3
1Scuola Superiore Sant'Anna e Fondazione CNR - Regione Toscana G. Monasterio, Pisa, Italy.
Clinical chemistry and laboratory medicine
|October 27, 2025
概括
在高灵敏度的心脏类素测定中的分析不准确性影响非ST升高心肌梗塞 (NSTEMI) 诊断. 本文对比了测试性能规范 (APS) 与参考变化值 (RCV) 方法来解释热素变化.
科学领域:
- 心脏病学 心脏病学
- 临床化学 临床化学
- 生物标记分析 生物标记分析
背景情况:
- 关于高灵敏性心脏托罗素 (hs-cTn) 测定中的分析不准确性及其对诊断非ST升高心肌梗塞 (NSTEMI) 的影响存在争议.
- 目前的指导方针 (2020 ESC) 使用绝对三角值在紧急部门 (ED) 的NSTEMI规则-in/rule-out算法.
- 共识指南 (AACC/IFCC,MI的第四个普遍定义) 压力测试精度在99百分点上限和生物标志物变化的临床意义.
研究的目的:
- 突出测试性能规范 (APS) 和参考变化值 (RCV) 方法之间的方法和概念差异,用于hs-cTn解释.
- 讨论分析不准确性对使用hs-cTn试验的NSTEMI诊断的影响.
- 强调将生物标志物变化与临床证据整合为准确诊断的重要性.
主要方法:
- 两种不同的方法的比较分析:测试性能规范 (APS) 和参考变化值 (RCV).
- 对hs-cTn测定精度的证据的审查 (例如,在诊断值时%CV ≤10%).
- 讨论个体内生物变异及其在定义临床意义上的托罗邦素变化 (RCV>30%) 中的作用.
主要成果:
- 有证据表明,hs-cTn测定在相关诊断值中通常满足精度要求 (≤10% CV).
- 基于低个体内生物变异 (指数 ≈0.3) 的RCV方法支持将热素解释为生理心肌细胞周转率的标志物.
- 如果未能达到推的APS,则可能导致对NSTEMI诊断的绝对三角值值的不可靠检测.
结论:
- APS受测试特征和临床背景的影响,而RCV依赖于生物变异.
- 准确诊断急性心肌梗塞需要将hs-cTn变化与临床表现,心电图和成像进行整合.
- 由人工智能驱动的模型将hs-cTn与临床数据结合起来,提高诊断准确度,促进针对疑似急性冠状动脉综合征 (ACS) 的个性化医疗.
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