摘要
目的分析近两年来深圳市第三人民医院产超广谱β-内酰胺酶(ESBLs)-大肠埃希菌(ECO)的来源标本类型、病区分布,以及危险因素,为医院感控和临床抗感染治疗提供细菌学依据。方法收集该院住院患者检出的非重复ECO 443株,采用phoenix100系统进行菌种鉴定和药敏实验,并对产ESBLs-ECO进行双纸片协同试验确证,对产ESBLs-ECO感染的危险因素进行统计分析。结果 443株ECO中产ESBLs-ECO为115株,占26.0%;产ESBLs-ECO菌株主要分离自痰液、尿液和血液标本,病区分布以结核病区、儿科、肝病区和感染科为主,分别占20.9%、13.9%、12.2%和8.7%。男性、外科手术和第三代头孢菌素用药史是产ESBLs-ECO感染的独立危险因素。结论该院产ESBLs-ECO检出率较高,医院应根据危险因素制订干预措施,特别应重点关注男性患者,规范外科手术操作及消毒,限制使用第三代头孢菌素,减少院内产ESBLs-ECO的发生和传播。
Objective To analyze the specimen types,ward distribution and risk factors for infections caused by extended-spectrumβ-lactamase（ESBLs）-producing-Escherichia coli（ECO）in recent two years,so as to provide bacteriological basis for both hospital infection control and clinical anti-infection treatment.Methods Non-repetitive 443 ECO strains isolated from the hospitalized patients in the Third People′s Hospital of Shenzhen were collcted,and the phoenix100 system was employed for bacterial identification and antimicrobial susceptibility tests.ESBLs-ECO was further confirmed by the double-disk synergy test,and the risk factors caused ESBLs-ECO were statistically analyzed.Results A total of 115 strains of ESBLs-ECO were identified among the 443 strains of ECO,which accounted for 26.0%.The ESBLs-ECO strains were mainly isolated from the sputum,urine,and blood specimens.Among the isolated ESBLs-ECO strains,20.9% were isolated from the department of Tuberculosis,13.9% from the department of pediatric,12.2%from the department of live disease,and 8.7%from the department of infection.The male sex,surgery and use of the third generation cephalosporins were independent risk factors of ESBLs-ECO infection.Conclusion The isolation rate of ESBLs-ECO in this hospital is high.It is necessary for the hospital to strengthen the control of nosocomial infections according to the risk factors.More attention should be payed on male patients,the standardization of surgical operation and disinfection,and the restriction of using the third generation cephalosporins,so as to reduce the incidene of ESBLs-ECO infections.
出处
《国际检验医学杂志》
CAS
2017年第15期2048-2050,共3页
International Journal of Laboratory Medicine
基金
深圳市知识创新计划项目(JCYJ20150402111430615
ZDSYS201504301534057)
