老年科病房医院感染常见病原菌监测及耐药性分析

目的监测老年科医院感染的病原菌分布特征,分析其耐药性,指导老年科医院感染的预防和控制。方法老年科病房送检的各种标本进行细菌培养、鉴定及药物敏感实验;对细菌培养阳性病例参照《医院感染诊断标准》,医院质量控制科确诊为医院感染的病例进行分析。结果老年科病房医院感染以呼吸道、泌尿道、胃肠道的发生率最高;223株老年科病房医院感染病原菌中,居前3位的依次为白色念珠菌、铜绿假单胞菌、大肠埃希菌;药物敏感性实验显示,老年科病房医院感染病原菌对亚胺培南、美罗培南和多黏菌素抗菌药物敏感性较好(98%~100%),对其他常规抗菌药物耐药性严重。结论加强病房管理、严格执行消毒隔离制度、合理使用抗菌药物、积极治疗原发基础疾病、缩短住院天数等可以降低老年科医院感染的概率。

Commonly Encountered Bacteria Isolated from Nosocomial Infection in Department of Gerontology: Supervision and Drug-resistance Analysis

OBJECTIVE To provide reference for prevention and control of nosocomial infection based on the(investigation) of the distribution characteristics of nosocomial infection bacteria and analysis of their antibiotic-(resistance) in wards of gerontologic disease.METHODS The bacteria from specimens of Department of(Gerontology) were cultured and identified,and then antibiotic susceptibility tests were done.These nosocomial(infection) cases judged by the department of nosocomial infection control according to the diagnostic criterion of nosocomial(infection) were analyzed.RESULTS The incidences of nosocomial infection of Department of(Gerontology) were higher in respiratory system,urinary catheter and gastrointestinal tract.A total of 223 strains of pathogens were from(nosocomial) infection and the most commonly encountered pathogens of them were Candida albicans,Pseudomonas aeruginosa,and Escherichia coli.The results of antibiotic susceptibility tests showed that pathogens from nosocomial infection in Department of Gerontology were sensitive to such antibiotics as imipenem,meropenem and polymyxin(98 %), their drug-resistance to the other common antibiotics was very severe.CONCLUSIONS(Possible) measures to reduce nosocomial infection are to strengthen hospital management,reinforce disinfection and sterilization,reasonably use antibiotics,cure the underlying diseases, and shorten(hospital) stay.