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痰细胞学涂片检菌对ICU肺部真菌感染的诊断意义 被引量:4

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摘要 目的探索痰细胞学涂片检菌对ICU肺部真菌感染诊断意义。方法 38例76份痰标本在常规痰培养后,对剩余标本应用4倍体积的0.4%二硫苏糖醇进行液化,再行密度梯度离心,分离出痰中的细胞成分,对其进行涂片和革兰染色,观察涂片中细胞周围黏附有真菌菌丝及孢子的标本,以患者G试验阳性同时痰培养培养出真菌为标准,与其进行比较,分析其对ICU肺部真菌感染定性诊断的准确性;并对同一患者两种方法连续2次结果的一致性进行统计学分析。结果 76份痰标本中真菌培养阳性17份,其中15份G试验阳性,4例患者2次标本培养结果一致(8份),单次标本真菌培养阳性9份,59份无真菌生长;细胞学涂片检菌结果:有19份标本(在8例患者和3份单一标本)涂片中发现较多真菌菌丝及孢子黏附于细胞的表现;与标准相比总准确率为86.67%,经一致性检验,kappa=0.785,两者没有显著性差异;在同一患者2个标本的一致性方面,细胞学涂片检菌方法:19份标本,16份是一致的,而常规真菌培养方法17份标本只有8份相一致,经卡方检验?2=4.09,P<0.05,有明显统计学意义。结论痰细胞学涂片检菌对ICU肺部真菌感染能够准确地做出早期定性诊断。
出处 《中华临床医师杂志(电子版)》 CAS 2013年第23期336-338,共3页 Chinese Journal of Clinicians(Electronic Edition)
基金 国家自然科学基金(30400140)
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