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Stroke:临床量表不能准确识别大动脉闭塞性卒中

2016-07-23 phylis 译 MedSci原创

背景:临床评分是否可以帮助识别急性大动脉闭塞的缺血性卒中患者,改善治疗的分类是有争议的。研究者旨在确定公布的临床评分预测大动脉闭塞的准确性。方法:研究者评估了13个临床评分预测急性缺血性脑卒中患者大动脉闭塞的性能,这些患者发病6小时内进行临床检查和磁共振或CT血管造影。当无界值点时,研究者使用界值最大化的增加研究队列敏感性和特异性的总和。研究者还决定,对每一个评分,一个假阴性率≤10%与界值点相关

背景:临床评分是否可以帮助识别急性大动脉闭塞的缺血性卒中患者,改善治疗的分类是有争议的。研究者旨在确定公布的临床评分预测大动脉闭塞的准确性。

方法:研究者评估了13个临床评分预测急性缺血性脑卒中患者大动脉闭塞的性能,这些患者发病6小时内进行临床检查和磁共振或CT血管造影。当无界值点时,研究者使用界值最大化的增加研究队列敏感性和特异性的总和。研究者还决定,对每一个评分,一个假阴性率≤10%与界值点相关。

结果:1004例患者(美国国立卫生院卒中量表评分中位数为7;范围0-40),328(32.7%)例有颈内动脉,大脑中动脉M1段和基底动脉闭塞。美国国立卫生院卒中量表评分≥11,并且快速动脉闭塞精度最高评价量表评分≥5有较高的准确率(79%;95%CI 77-82.)。然而,这些界值点与假阴性率> 25%相关。界值点与假阴性率≤10%相关:NHISS分数,快速动脉闭塞评估量表及辛辛那提院前卒中严重程度量表的值分别为5、1、和0。

结论:使用公布的界值点导致≥20%大动脉闭塞的患者会送到缺乏神经介入设施中心,丧失做介入的机会。相反,使用降低假阴性率至10%的界值点,使得每个患者都送至综合卒中中心。研究结果表明,在症状开始6h内应对所有急性缺血性卒中行颅内动脉成像。

原始出处:

Turc G, Maïer B, et al. Clinical Scales Do Not Reliably Identify Acute Ischemic Stroke Patients With Large-Artery Occlusion. Stroke. 2016 Jun


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    2016-10-11 ylzr123

    学习了,好文值得点赞!

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