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目的本文旨在研究影响假单胞菌院内感染发生的危险因素及防治对策，降低院内感染率。方法分析１９９５～１９９６年发生假单胞菌感染５１例，对照组１０７例在住院期间接受检查治疗的各项资料进行监测研究，通过单因素分析和Ｌｏｇｉｓｔｉｃ回归分析筛选。结果使用广谱抗生素时间、住院天数、性别、引流管的应用是有显著联系的因素。５１例假单胞菌、铜绿假单胞菌占８０．４％，并对第１代和第３头孢菌素耐药率明显增高，对氧哌嗪青霉素和氟哌酸敏感。从医院环境微生物学监测发现墙式氧气吸入器连接口污染严重也是危险因素之一。结论严格遵守抗生素使用原则，坚持环境微生物学监测，缩短住院天数，假单胞菌所引起的院内感染是可以预防的。
Objective This article aims to study the impact of Pseudomonas nosocomial infection risk factors and prevention and treatment strategies to reduce the rate of nosocomial infection. Methods Fifty-one cases of Pseudomonas infection and 107 cases of control group during 1995-1996 were monitored and monitored during hospitalization. The data were analyzed by single factor analysis and Logistic regression analysis. Results The use of broad-spectrum antibiotic time, length of stay, sex, and drainage tube were significantly associated. 51 cases of Pseudomonas, Pseudomonas aeruginosa accounted for 80.4%, and first and third cephalosporins resistance was significantly higher, sensitive to piperacillin and norfloxacin. Microbiology monitoring from the hospital environment found that the wall oxygen inhaler connection serious pollution is one of the risk factors. Conclusion Strict adherence to the principle of antibiotic use, adherence to environmental microbiology monitoring, shorten the length of stay, caused by Pseudomonas nosocomial infection can be prevented.