医院感染多药耐药菌对消毒剂抗性的分析

目的调查医院感染多药耐药菌对临床常用消毒剂的抗性,探讨细菌对抗菌药物耐药性与消毒剂抗性之间的关系,为合理使用消毒剂提供参考依据。方法收集医院2009年医院感染病例中分离出的耐甲氧西林金黄色葡萄球菌(MRSA)、鲍氏不动杆菌等5种多药耐药菌;利用K-B纸片法测定其对医院常用消毒剂的最低抑菌浓度(MICs)值,并用标准菌株作为对照。结果安尔碘Ⅱ型对MRSA的MICs值为17.2μg/ml,对铜绿假单胞菌的MICs值为137.5μg/ml;洁肤柔消毒凝胶对大肠埃希菌、肺炎克雷伯菌、鲍氏不动杆菌的MICs值均为18.8μg/ml;3M爱护佳免洗手消毒液对大肠埃希菌和MRSA的MICs值为156.3μg/ml,对铜绿假单胞菌和鲍氏不动杆菌的MICs值为625.0μg/ml;绿莎新爱尔施牌消毒片对鲍氏不动杆菌MICs值为442.5μg/ml,对铜绿假单胞菌和大肠埃希菌的MICs值为1170.0μg/ml;不同菌种对同一种消毒剂的MICs值有差异;医院常用消毒剂对多药耐药菌的MICs值较标准低。结论细菌对消毒剂的抗性日益受到关注,加强消毒剂的科学管理对医院感染的控制有重要意义。

Resistance of multidrug-resistant bacteria causing nosocomial infection to disinfectant:a preliminary analysis

OBJECTIVE To investigate the disinfectant resistance of the multi-drug resistant bacteria and study the relationship between the disinfectant resistance and the bacterial resistance so as to provide the information for the rational use of the disinfectant.METHODS Five kinds of strains of multi-drug resistant bacteria including MRSA,Acinetobacter baumannii and so on were collected,which were isolated from the specimens of nosocomial infection in 2009.The minimal inhibitory concentrations(MICs) of all the bac...