老年患者细菌定植及耐药性分析

Bacteria colonization of elderly patients and its drug resistance

目的探讨住院老年患者细菌定植的病原菌类型及耐药性特点,为院内感染控制提供依据。方法通过对2010年11月至2011年3月,重庆市第三人民医院老年科365份呼吸道标本进行培养、鉴定,并进行药敏试验。结果判定出119例定植菌,定植率32.6%;其中8株产β-内酰胺酶的溶血葡萄球菌,14株产ESBLs的大肠埃希菌。结论老年科细菌定植处在中等水平,多重耐药菌定植率高,应加强重视,预防老年患者的院内感染暴发。同时为临床合理使用抗生素提供理论依据。

Objective To discuss the pathogen′s type of bacteria colonization of elderly patients and its drug resistance characteristics,and provide basis for the control of nosocomial in fection.Methods 365 samples from our hospital were collected,cultured and identified from November 2010 to March 2011,then we did the drug sensitive test.Results Of the 365 samples,119 were succeeded in colonization,and the rate of colonization was 32.6%.8 strains were β-lactamase producing staphylococcus haemolyticus,and 14 strains were ESBL-producing escherichia coli.Conclusion Bacteria colonization of elderly patients is at middle level.And the colonization rate of mults-drug resistant bacterial is high,so we should prevent the nosocomial infection of elderly patients,and provide the basis for the antibiotics use.