AJG:一种可以区分肠结核和克罗恩病的NOMO模型

2019-03-23 不详 MedSci原创

临床工作中区分克罗恩病(CD)与肠结核(ITB)仍然是一个比较大的挑战,如果误诊会带来了严重的影响。因此,本项研究的目的是开发和验证一种新的诊断列线图以区分它们。

背景及目的: 
临床工作中区分克罗恩病(CD)与肠结核(ITB)仍然是一个比较大的挑战,如果误诊会带来了严重的影响。因此,本项研究的目的是开发和验证一种新的诊断列线图以区分它们。

方法: 
研究人员从6个三级炎症性肠病中心招募了总共310名符合条件的患者。其中,212例患者(143例CD和69例ITB)属于推导队列,用于建立诊断方程和列线图; 使用7种研究方式,包括临床表现,实验室结果,内窥镜检查结果,计算机断层扫描肠造影特征和组织学结果,得出诊断模型和列线图。另外98名患者(76 CD和22 ITB)用于验证诊断模型。

结果: 
研究人员在79个参数中选取了8个参数作为建立诊断方程的有价值的参数。基于7个微分变量建立两个回归模型:年龄,横向溃疡,直肠受累,小肠阶段跳跃,靶征,木梳征和干扰素-γ释放试验(对于模型1)或纯化蛋白衍生物(对于模型) 2。进一步的验证试验验证了诺模图1的效力,特异性为90.9%,敏感性为86.8%,PPV为97.1%,阴性预测值为66.7%(NPV),鉴定CD的准确率为87.8%,列线图2的效率为100%特异性,敏感性为84.2%,阳性预测值为100%,NPV为64.7%,诊断CD的准确率为87.8%。

结论: 
推导和验证队列确定并验证了2个高度准确和实用的诊断列线图,用于区分CD和ITB。这些诊断列线图可以方便地用于识别一些困难的CD或ITB病例,从而允许医生在临床环境中进行决策。

原始出处:

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    2019-10-26 minzju5052
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    2019-03-24 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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