JAHA:心肌肌钙蛋白诊断慢性肾脏病患者急性心肌梗死的性能

2018-09-25 xing.T MedSci原创

由此可见,通过使用基于肌钙蛋白和肌钙蛋白浓度动态变化的算法,改善了高敏感性心肌肌钙蛋白在疑似NSTE-AMI的CKD患者中的诊断性能。

慢性肾脏病(CKD)患者具有较高的心肌梗塞风险。心肌肌钙蛋白是诊断非ST段抬高(NSTE)急性心肌梗死(AMI)首选的生物标志物。在CKD患者中,肌钙蛋白水平通常长期升高,这在疑似NSTE-AMI时降低了它的诊断效用。近日,血管疾病领域权威杂志JAHA上发表了一篇研究文章。该研究的目的是推导出一种用于疑似NSTE-AMI的CKD患者一系列肌钙蛋白测量的诊断算法。

研究人员分析了来自前瞻性队列研究中的1494名患者的高敏感肌钙蛋白I(hs-cTnI)测量值和7059名来自临床登记中心的测量了高敏感肌钙蛋白T(hs-cTnT)的患者。前瞻性队列包含280名CKD患者(估计肾小球滤过率<60mL/min/1.73m2)。登记中心数据集包含了1581名CKD患者。

在两个队列中,CKD患者比非CKD患者更有可能被判定为NSTE-AMI患者。hs-cTnI和hs-cTnT用于检测NSTE-AMI的特异性因CKD而降低(hs-cTnI为0.82 vs. 0.91,hs-cTnT为0.26 vs. 0.73),但可通过第一次或3小时后进行第二次测量的优化截止值来恢复。在69%(hs-cTnI)和55%(hs-cTnT)的CKD患者中纳入或排除AMI以及包含连续测量的算法实现了最佳诊断性能。

由此可见,通过使用基于肌钙蛋白和肌钙蛋白浓度动态变化的算法,改善了高敏感性心肌肌钙蛋白在疑似NSTE-AMI的CKD患者中的诊断性能。

原始出处:

Daniel Kraus.et al. Cardiac Troponins for the Diagnosis of Acute Myocardial Infarction in Chronic Kidney Disease.JAHA.2018. https://www.ahajournals.org/doi/full/10.1161/JAHA.117.008032

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