Clin Chem:使用高灵敏度的心肌肌钙蛋白I测定法对疑似急性心肌梗死患者进行两小时快速分诊

2019-12-23 MedSci MedSci原创

我们的目的是通过高灵敏度的心肌肌钙蛋白I (hs-cTnI)-通路实验,获得0/2-h算法并进行外部验证。

我们的目的是通过高灵敏度的心肌肌钙蛋白I (hs-cTnI)-通路实验,获得0/2-h算法并进行外部验证。

我们在2项前瞻性诊断研究中采用中央裁定的方法,对出现急性心肌梗死(AMI)症状的急诊患者进行了登记。两位独立的心脏病专家做出了最终诊断,包括所有可用的医学信息,包括心脏成像。以盲法测定hs-cTnI-Access浓度。

在衍生队列的1131(14.5%)患者中,有164人最终确诊为急性心肌梗死。排除由hs-cTnI-Access 0/2-h算法被定义为噢hs-cTnI-Access浓度< 4 ng / L患者胸痛的发作> 3 h(直接排除)或噢hs-cTnI-Access浓度< 5 ng / L和绝对变化在2 h < 5 ng / L在其他病人。规则输入的导出阈值为0-h hs-cTnI-Access浓度≥50 ng/L(直接规则输入)2 h内绝对变化≥20 ng/L。在衍生队列中,这些截断器排除了55%的阴性预测值(NPV)99.8% (95% CI, 99.3-100)和灵敏度为99.4% (95% CI, 96.5-99.9)的患者,并排除了30%的阳性预测值(PPV)73% (95% CI, 66.1-79)的患者。在验证队列中,在1280例患者中有88(6.9%)确诊为急性心肌梗死。这些界限排除了77.9%NPV99.8% (95% CI, 99.3-100)和敏感性为97.7% (95% CI, 92.0-99.7)的患者,并排除了5.8%PPV77% (95% CI, 65.8-86)的患者。

研究结果表明,l hs-cTnI-Access 0/2-h算法对急性心肌梗死患者进行排除规则或纳入规则的分诊,其安全性和有效性很高。

原始出处:

Thomas Nestelberger, Jasper Boeddinghaus,Two-Hour Algorithm for Rapid Triage of Suspected Acute Myocardial Infarction Using a High-Sensitivity Cardiac Troponin I Assay

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    2020-10-23 respect
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    2020-04-25 丁鹏鹏
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