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PLoS One:C反应蛋白可用于严重卒中患者早期诊断肺炎

2016-03-14 phylis 译 MedSci原创

背景:由于体格检查困难,免疫状态的改变,影像学表现的延迟,使得卒中后合并肺炎的准确诊断收到挑战。本研究旨在描述卒中后肺炎早期的临床表现并检测C反应蛋白是否是卒中后肺炎的诊断标志物。方法:研究包括进行鼻饲的患者及卒中7天内无肺炎证据的患者,随访21天,每天进行临床检查。根据英国胸部协会改良标准诊断肺炎的发生。结果:招募60名患者(平均年龄77岁,平均NIHSS分数为19.47)。44例患者诊断为肺炎

背景:由于体格检查困难,免疫状态改变,影像学表现延迟,使得卒中后合并肺炎的准确诊断受到挑战。本研究旨在描述卒中后肺炎早期的临床表现,并且检测C反应蛋白是否是卒中后肺炎的诊断标志物。

方法:研究包括进行鼻饲的患者及卒中7天内无肺炎证据的患者,随访21天,每天进行临床检查。根据英国胸部协会改良标准诊断肺炎的发生。

结果:招募60名患者(平均年龄77岁,平均NIHSS分数为19.47)。44例患者诊断为肺炎。肺炎诊断当天的常见表现为为新出现的裂纹(43 / 44,98%)、呼吸急促>25次/分(42/44、95%),血氧饱和度<90%(41 / 44,93%)。27例(61%)患者发生咳嗽,25(57%)患者咳脓痰,15(34%)发热>38°C。38例(86%)患者白细胞(白细胞>11000个/毫升)升高,和43(97%)肺炎患者CRP增高(>10 mg/L)。CRP的ROC曲线下面积为0.827(95%可信区间0.720,0.933)。可接受诊断敏感性(> 0.8)CRP的界值点为25.60 mg/L(Youden指数(J)0.515;灵敏度0.848;特异性0.667)。界值为64.65毫克/升时,诊断准确率最高(J 0.562,敏感性0.636,特异性0.926)。

结论:重症脑卒中患者发生肺部感染,在疾病早期不常表现咳嗽、咳脓痰,这些诊断肺炎的关键症状。本研究最常见的症状是新出现的裂纹,呼吸急促,缺氧。研究结果表明,CRP>25 mg/L时应及时观察肺炎的发生,而当CRP值>65 mg/L,则肺炎诊断的准确性已经较高。

原文出处:

Warusevitane A, Karunatilake D, et al. Early Diagnosis of Pneumonia in Severe Stroke: Clinical Features and the Diagnostic Role of C-Reactive Protein. PLoS One. 2016 Mar 3.


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