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目的研究医院物体表面和医护人员手上携带铜绿假单胞菌的分布及其耐药性,为有效控制医院感染提供参考。方法通过病原学标本监测和药敏试验方法,对北京市朝阳区医疗机构物体表面和医务人员手标本进行检测与分析。结果在床单位、抹布、暖水瓶和医务人员手等4种表面中,以床单位表面铜绿假单胞菌分离率最高,普通病房物体表面携带铜绿假单胞菌较重症监护病房者严重。从医院环境中分离的24株铜绿假单胞菌对氨苄西林等9种抗菌药物全部耐药。24株铜绿假单胞菌全部携带mir基因,sul1和tem-1基因携带率超过70%。结论铜绿假单胞菌在医院环境表面分布较广,呈现出多重耐药现象,应加强医院环境卫生学管理以有效降低环境污染菌数量。
Objective To study the distribution and drug resistance of Pseudomonas aeruginosa on the surface of hospital objects and paramedical staff, and to provide a reference for effective control of nosocomial infection. Methods The pathogen specimens and drug susceptibility test methods were used to detect and analyze the hand surface specimens of medical institutions and medical staff in Chaoyang District, Beijing. Results Among the four kinds of surfaces, such as bed unit, rag, thermos bottle and medical staff hand, the isolation rate of Pseudomonas aeruginosa was the highest on the bed unit surface, and the Pseudomonas aeruginosa heavier intensive care unit on the general ward surface was the most serious. 24 strains of Pseudomonas aeruginosa isolated from hospital environment were resistant to 9 kinds of antibacterials such as ampicillin. Twenty-four strains of Pseudomonas aeruginosa all carried the mir gene, and sul1 and tem-1 genes carried more than 70%. Conclusion Pseudomonas aeruginosa is widely distributed on the surface of hospital environment and presents with multi-drug resistance phenomenon. Hospital environmental hygiene management should be strengthened to effectively reduce the number of environmental pollution bacteria.