Lancet respir med:急性呼吸窘迫综合征表型简易区分模型研究

2020-01-14 MedSci MedSci原创

研究认为,这一3或4变量简约分类模型可以准确地识别急性呼吸窘迫综合征表型,为患者的精准治疗提供依据

研究发现,急性呼吸窘迫综合征(ARDS)可能存在两种不同表型:低炎性和高炎性。表型与不同的差异结果和治疗反应有关。近日研究人员试图建立一种能准确、可行地应用于临床表型鉴定的简约模型。

研究使用来自国家肺、心脏和血液研究ARDS网络(ARMA、ALVEOLI和FACTT)中,三个RCT队列作为派生数据集(n=2022),以第四个(SAILS;n=715)队列作为验证测试,研究的主要终点为第28、60和90天的死亡率以及28天的无呼吸机率与ARDS表型的关系。

六个最重要的分类变量是白细胞介素(I L)-8、IL-6、C蛋白、可溶性肿瘤坏死因子受体1、碳酸盐和加压素使用。从嵌套模型来看,三变量(IL-8、碳酸盐和C蛋白)和四变量(3变量基础上+加压素使用)模特表现最好。在验证测试集中,两个模型对显示出良好的准确性(三变量模型的AUC为0.94,四变量模型的AUC为0.95)。通过分类模型识别的高炎症表型与90天的高死亡率(223名患者中87名[39%] vs 492名患者中112名[23%])和较少的无呼吸机使用天数相关(中位数14天vs 22天)。在外部验证数据中,证实了该模型的准确性。

研究认为,这一3或4变量简约分类模型可以准确地识别急性呼吸窘迫综合征表型,为患者的精准治疗提供依据。

原始出处:


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    2020-04-21 heli0118
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    2020-01-16 tastas
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    2020-01-15 CHANGE

    梅斯里提供了很多疾病的模型计算公式,赞一个!

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