JAMA Cardiol:床旁肌钙蛋白检测新方法可在15分钟内准确排除急性心梗

2018-10-21 朱柳媛 中国循环杂志

10月17日,一项发表在JAMA心脏病学子刊上的新西兰研究表明,一种在床旁检测血液肌钙蛋白水平的新方法(I-Stat TnI-Nx检测法),15分钟内就能排除急性心肌梗死患者,其敏感性达100%,准确性与实验室检测的高敏心肌肌钙蛋白I水平相似,而后者需要1~2小时才能出结果。

10月17日,一项发表在JAMA心脏病学子刊上的新西兰研究表明,一种在床旁检测血液肌钙蛋白水平的新方法(I-Stat TnI-Nx检测法),15分钟内就能排除急性心肌梗死患者,其敏感性达100%,准确性与实验室检测的高敏心肌肌钙蛋白I水平相似,而后者需要1~2小时才能出结果。

该研究纳入354例怀疑为急性心肌梗死的患者,在患者到达急诊时用新方法进行床旁肌钙蛋白检测,同时根据临床常规进行实验室高敏心肌肌钙蛋白I检测。

在这354例患者中,16.1%确诊为急性心肌梗死,24%在发病3小时内到达急诊室。

分析表明,上述两种肌钙蛋白检测方法对急性心肌梗死的诊断准确率无明显差别(AUC分别为0.975和0.970)。床旁检测法肌钙蛋白< 11 ng/L,将56.7%的患者归为低危人群,其敏感性和阴性预测值均为100%。而根据实验室高敏心肌肌钙蛋白I水平<3 ng/L,43.5%的患者为低危人群,其敏感性和阴性预测值也均为100%。

研究者认为,这种新检测方法有助于急诊医生尽早作出治疗决策,让低危人群快速安全出院。另外,这种新检测方法对于偏远、孤立的医疗机构,比如农村社区,可能非常有用。

原始出处:John W. Pickering, Joanna M. Young, Peter M. George, et al. Validity of a Novel Point-of-Care Troponin Assay for Single-Test Rule-Out of Acute Myocardial Infarction. JAMA Cardiol. October 17, 2018

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    2018-10-21 明月清辉

    谢谢分享,学习了

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