Survey on current status of cleaning,disinfection and sterilization of flexible-endoscope components in 111 hospitals in China
OBJECTIVE To understand the current status of cleaning,disinfection and sterilization of endoscope components in China,and to provide reference for further research and standardization of cleaning and disinfection practices.METHODS According to the"Regulation for cleaning and disinfection technique of flexible endoscope(WS507-2016)"in China,and with reference to the guidelines and related research on the reprocessing of endo-scopic components by the American society for gastrointestinal endoscopy(ASGE)and the European society of gastrointestinal endoscopy(ESGE),a questionnaire was prepared,content validity was evaluated and the ques-tionnaire was revised and completed.Using stratified sampling method,the questionnaire was distributed to en-doscopy settings in 120 hospitals across 24 provincial-level administrative regions in China.RESULTS The recov-ered valid questionnaires were collected from 111 hospitals endoscopy settings in 23 provincial-level administrative regions of China,with an effective response rate of 92.50%.Among them,55 were tertiary three-A hospitals,19 were tertiary three-B hospitals,and 37 were secondary hospitals.During the cleaning process,105 endoscopy set-tings performed manual brushing of endoscopy components,with an compliance rate of 94.59%;71 endoscopy settings performed ultrasonic cleaning of endoscopy components after manual brushing,with an compliance rate of 63.96%,the difference in the execution rate of ultrasonic cleaning of endoscope components in hospitals of differ-ent grades was statistically significant(x2=19.100,P<0.001).All endoscopy settings performed high-level dis-infection and drying of endoscope components,with an execution rate of 100%.Among them,64.86%of endos-copy settings used phthalaldehyde as the high-level disinfectant for endoscope components,and 90.99%of endos-copy settings used compressed air for drying process of endoscope components.52 endoscopy settings routinely sterilized endoscope components,with a sterilization compliance rate of 46.85%.Among them,65.38%(34/52)used peracetic acid for sterilization.81 endoscopy settings monitored the cleaning quality of endoscope compo-nents,with a cleaning quality monitoring rate of 72.97%,of which 35 endoscopy settings used ATP biolumines-cence method for monitoring.Totally 68 institutions monitored the disinfection quality of endoscopic components,with a disinfection quality monitoring rate of 61.26%.Totally 28 endoscopy settings used disposable endoscope components for high-risk endoscopy procedures that invaded sterile tissue,such as endoscopic submucosal dissec-tion(ESD),peroral endoscopic myomectomy(POEM),or endoscopic retrograde cholangiopancreatography(ER-CP).CONCLUSIONS The manual brushing and disinfection process of endoscope components was well executed,and the ultrasonic cleaning process should be improved.In some endoscopy settings,endoscope components were sterilized,or disposable endoscope components were used to reduce the risk of infection.Further research is needed to focus on the cleaning and disinfection quality monitoring of endoscope components.