中性粒细胞CD64指数在慢性阻塞性肺疾病急性加重期细菌感染中的诊断价值

被引:11
作者
王熠
刘佳妤
嵇成红
施敏骅
机构
[1] 苏州大学附属第二医院呼吸科
关键词
慢性阻塞性肺疾病; CD64指数; 白细胞; C反应蛋白; 血清降钙素原;
D O I
暂无
中图分类号
R563.9 [其他];
学科分类号
100201 [内科学];
摘要
目的探讨中性粒细胞CD64指数在慢性阻塞性肺疾病急性加重期(AECOPD)细菌感染中的诊断价值,并分别比较CD64指数、白细胞(WBC)计数、中性粒细胞比率(Neu%)、C反应蛋白(CRP)及血清降钙素原(PCT)在诊断AECOPD细菌感染中的准确性。方法选取2016年3月至12月在苏州大学附属第二医院呼吸科住院部及门诊就诊的COPD患者64例,根据临床表现,分为AECOPD组48例、COPD稳定组16例,另从体检中心选取健康体检者20例作为对照组。根据临床表现、痰性状和细菌学培养,将AECOPD组分为细菌感染组28例及非细菌感染组20例。采用流式细胞仪、血液分析仪和电化学发光仪分别检测各组研究对象外周血CD64指数、WBC、Neu%、CRP及PCT的表达水平。结果 AECOPD细菌感染组CD64指数及常规炎症指标明显升高,与AECOPD非细菌感染组、COPD稳定组及健康对照组对比差异有统计学意义(P≤0.01),AECOPD细菌感染组患者CD64的表达在抗感染治疗1周后明显下降(P≤0.001),但与健康对照组比较差异仍有统计学意义(P<0.05)。和其他炎症指标相比,CD64指数的ROC曲线下面积最大,为0.949,且当CD64取临界值0.399%时,敏感度和特异度分别为89.66%、90.48%,明显优于WBC、Neu%、CRP及PCT等常规炎症指标。结论中性粒细胞CD64指数的检测可作为AECOPD细菌感染有效诊断和疗效评价指标。
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