摘要
目的调查消化内镜清洗消毒室真实工作状态下空气气溶胶变化以及不同通风消毒模式下气溶胶净化效果。方法2023年5-10月在上海交通大学医学院附属仁济医院内镜清洗消毒室真实工作状态(空调和循环风空气消毒机均开启)下,于8~16时每间隔1 h采集空气,检测空气中颗粒物、微生物含量。在清洗消毒室最繁忙时刻,分别在空调系统、循环风空气消毒机或自然通风条件下,在开启前、工作0.5、1和2 h后采集清洗消毒室空气,检测其中的颗粒物和微生物含量。结果真实工作状态下,各时段PM_(0.5)含量均符合ISO9级洁净室标准(≤35200颗/L),浮游菌含量也符合Ⅲ类环境要求(≤500 CFU/m^(3))。通风2 h后,这3种通风消毒方法对PM_(0.5)和微生物的含量都有一定的净化效果,其中空气消毒机组颗粒物和微生物含量下降幅度最大,其次为空调组,自然通风组下降最少。不同时刻三组间颗粒物浓度和微生物含量比较,无统计学差异;仅空气消毒机组通风2 h与0、0.5和1 h比较,差异均有统计学意义(P<0.05)。结论开启空调系统和循环风空气消毒机对颗粒物和微生物含量均有一定的净化效果,但具体效果仍需进一步研究。今后可借助智能化手段,实施多中心动态监测研究,为清洗消毒室的通风消毒策略优化提供参考。
OBJECTIVE To investigate the changes of air aerosols in the digestive endoscope cleaning and disinfection room under real working conditions and observe the purification effects of aerosols under different ventilation and disinfection modes.METHODS Under the real working conditions(with both the air conditioner and recirculating air disinfection machine under the working mode),the air samples were collected every 1 hour from 8:00 to 16:oo from the digestive endoscope cleaning and disinfection room of Ren Ji Hospital,Shanghai Jiao Tong University School of Medicine from May 2023 to Oct.2023;the contents of particulate matters(PM)and microorganisms in the air were detected.At the busiest moment of the cleaning and disinfection room,the air was respectively sampled from the cleaning and disinfection room with the working condition modes of air condition systems,recirculating air disinfection machine or natural ventilation before the starting of systems and after the work for O.5 hour,1 hour and 2 hours.The contents of PMs and microorganisms were detected.RESULTS The PM_(0.5) concentrations during various time periods met the Grade 9 ISO clean room standard(≤35,200 particles/L)under the real working conditions,and the content of airborne viable particles also conformed to the Class Ⅲ environmental requirements(<500 CFU/m^(3)).All of the three ventilation and disinfection methods showed certain effects on purification of the contents of PM_(0.5) and microorganisms after the ventilation for 2 hours,the contents of PMs and microorganisms of the air disinfection machine group decreased most remarkably,followed by the air conditioner group,the natural ventilation group the least.There were no significant differences in the PM concentration and the content of microorganisms among the three groups at the time points;there were only significant differences in the PM concentration and the content of microorganisms of the air disinfection machine group after the ventilation for 2 hours,0.5 hour and 1 hour(P<0.05).CONCLUSIONS Both the air conditioning systems and recirculating air disinfection machine under the working condition mode have certain effect on purification of the contents of PM and microorganisms,and the specific effect need to be further studied.The implementation of multicenter dynamic surveillance with the help of intelligent techniques may provide reference for the optimization of ventilation and disinfection strategies.
作者
阎思瑾
宋燕
陆峰
黄诗雯
丁佳燕
黄妹
傅小芳
赵丽娜
张艳
班海群
YAN Sijin;SONG Yan;LU Feng;HUANG Shiwen;DING Jiayan;HUANG Mei;FU Xiaofang;ZHAO Lina;ZHANG Yan;BAN Haiqun(Ren Ji Hospital,Shanghai Jiao Tong University School of Medicine,Shanghai 200127,China;不详)
出处
《中华医院感染学杂志》
北大核心
2025年第13期2040-2044,共5页
Chinese Journal of Nosocomiology
基金
上海市加强公共卫生体系建设三年行动计划重点学科基金资助项目(GWVI-11.1-04)
上海交通大学医学院院感科研基金资助项目(Jyyg2202)。
关键词
消化内镜清洗消毒室
空调系统
循环风空气消毒机
PM_(0.5)
微生物
Digestive endoscope cleaning and disinfection room
Air conditioning system
Recirculating air disinfection machine
PM_(0.5)
Microorganism
