›› 2015, Vol. 36 ›› Issue (3): 309-309.

• 论文 • 上一篇    下一篇

应用荧光定量聚合酶链反应技术快速筛查重症监护室耐甲氧西林金黄色葡萄球菌定植者

孙茜;吕志堂;孙雅堃   

  1. 河北省保定市第一中心医院检验科,河北 保定,071002%河北大学生命科学学院,河北省微生物多样性研究与应用实验室,河北 保定 071002
  • 发布日期:2015-03-25

ZHANG Fan;LI Yi;DING Jie;ZHANG Hai-lin

SUN Qian;LV Zhi-tang;SUN Ya-kun   

  • Published:2015-03-25

摘要: 目的:建立耐甲氧西林金黄色葡萄球菌(methicillin resistant Staphylococcus aureus,MRSA)荧光定量PCR 快速检测方法,筛查重症监护室(intensive care unit,ICU)MRSA 定植者。方法采集患者感染部位标本或鼻咽拭子标本,快速提取总 DNA 后应用荧光定量 PCR 方法检测标本中 nuc 和 mecA 基因,对于双阳性结果报MRSA 阳性,采取早期干预措施。结果建立的荧光定量 PCR 方法灵敏度高(4 CFU/反应)、快速、准确率100%。采取筛查和干预降低了 ICU 的 MRSA 感染率。结论应用荧光定量 PCR 对 MRSA 早期筛查及干预,有助于早发现、早诊断、早隔离、早治疗,可有效防止或终止 MRSA 导致的医院感染暴发流行。

关键词: 耐甲氧西林金黄色葡萄球菌, 聚合酶链反应, 筛查

Abstract: Objective To establish the fluorescent quantitative polymerase chain reaction(Q-PCR) method for screening methicillin resistant Staphylococcus aureus (MRSA ) colonised patients of intensive care unit(ICU).Methods Collecting the infection specimen or nasal swabs, extracting the DNA,and detecting the nuc gene and mecA gene within the sample by Q-PCR.For the double positive results specimen,MRSA positive was reported and intervening measures were adopted.Results The Q-PCR method improved in this study was rather quick and showed high sensitivity(4 CFU/reaction)and accuracy (100%).Q-PCR screen and early infection control measures reduced the MRSA infection rate of ICU.Conclusion Early screening and intervening of MRSA are helpful to early detection,diagnosis,quarantine and treatment,and also can effectively prevent or stop hospital infection outbreak caused by MRSA.

Key words: methicillin-resistant staphylococcus aureus, polymerase chain reaction, screening

中图分类号: