血清降钙素原对呼吸机相关性肺炎的诊断价值

被引:9
作者
王妍
刘宁
唐健
顾勤
机构
[1] 南京大学医学院附属鼓楼医院
关键词
呼吸机相关性肺炎; 降钙素原; 临床肺部感染评分;
D O I
暂无
中图分类号
R563.1 [肺炎];
学科分类号
100201 [内科学];
摘要
目的观察血清降钙素原(PCT)水平变化,探讨其对呼吸机相关性肺炎(VAP)的诊断价值。方法选择预计机械通气>3 d、无临床感染征象的机械通气患者60例,其中VAP患者26例(观察组),非VAP患者34例(对照组)。检测两组行机械通气1 d(T1)、3 d(T2)、5 d(T3)、7 d(T4)时的血清PCT,VAP诊断当日两组均采用贝克曼免疫投射比浊法、SYSMEX全自动流式血细胞计数仪检测血清C反应蛋白(CRP)、血白细胞(WBC),并行临床肺部感染评分(CPIS)。结果观察组行机械通气3、5、7 d时的血清PCT水平均高于1 d及对照组,P均<0.01。观察组血清PCT及CPIS均高于对照组,P均<0.01;两组血清CRP、WBC比较,P均>0.05。观察组血清PCT、CRP、WBC和CPIS的ROC曲线下面积分别为0.872、0.562、0.529、0.839,血清PCT为最佳诊断指标,最佳截断值为0.76μg/L;此截断值诊断VAP的敏感性和特异性分别为90.9%、72.7%。结论 VAP患者血清PCT水平进行性升高,PCT>0.76μg/L提示VAP的发生。
引用
收藏
页码:42 / 43
页数:2
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