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目的了解一起嗜麦芽假单胞菌致住院肿瘤患者呼吸机相关性肺炎暴发的原因,为预防和控制医院感染提供依据。方法通过现场调查和病原学标本检测,对某医院重症监护病房(ICU)4例感染嗜麦芽假单胞菌感染患者进行调查与分析。结果该医院ICU在1个月时间内连续发生4例呼吸机肿瘤患者肺部嗜麦芽假单胞菌感染。在4例感染患者的呼吸道标本中均重复检出嗜麦芽假单胞菌,同时在病人使用的呼吸机呼气阀落水瓶接头处、呼吸机管道、三通接头内腔均检出了与感染者同源致病菌。结论此次嗜麦芽假单胞菌感染为局部感染暴发,呼吸机消毒不严格是造成感染的主要因素,通过严格隔离与消毒有效控制了疫情。
Objective To understand the causes of outbreaks of ventilator-associated pneumonia in hospitalized patients with Pseudomonas maltophilia and to provide basis for prevention and control of nosocomial infections. Methods Four patients with Stenotrophomonas maltophilia infection were investigated and analyzed in a hospital intensive care unit (ICU) through field investigation and pathogen detection. Results The hospital ICU occurred consecutively in 4 months in patients with ventilator tumor in patients with Pseudomonas aeruginosa lung infection. In 4 patients with respiratory tract specimens were detected repeatedly Pseudomonas maltophilia, at the same time, the patient used breathing machine valve dropper connector, the ventilator pipeline, three-way connector lined with the infection were detected Homologous pathogenic bacteria. Conclusion The Pseudomonas maltophilia infection is an outbreak of local infection. Ventilator disinfection is not strictly the main factor causing infection, and the outbreak is effectively controlled through strict isolation and disinfection.