Quality of cleaning and disinfection of endoscopes in sentinel hospitals of Urumqi and prevalence survey of management from 2015 to 2023
OBJECTIVE To understand the composition of staff and status of endoscopy root setting in the sentinel hospitals of Urumqi and understand the quality of disinfection of endoscopes so as to provide bases for the disinfec-tion of endoscopes,management of endoscopy rooms and improvement of the disinfection.METHODS From 2015 to Mar 2023,totally 9 sentinel hospitals of Urumqi,Xinjiang Urgur Autonomous Region were enrolled in the study,the qualified rate of cleaning and disinfection of endoscopes and bacterial contamination rate were moni-tored.The composition of staff of the endoscope rooms and equipping status of devices were investigated,and the frequency of monitoring was once a quarter.RESULTS A total of 425 samples were collected from the endoscopes of the 9 sentinel hospitals from 2015 to Mar 2023,413 of which were qualified,with the qualified rate 97.18％,and the qualified rate was the lowest(79.31％)in 2018;there was significant difference in the qualified rate a-mong the years(x2=24.241,P＜0.001).Bacterial colonies were detected in all of the years except 2023.The pro-portion of endoscopes detected with bacterial colony counts ranging between 1 and 20 cfu/piece reached to 66.67％.The microorganisms isolated from some of the samples were identified.Totally 96 samples were detec-ted,and Pseudomonas aeruginosa was isolated from 1 sample,with the isolation rate 1.03％.There was no sig-nificant difference in the qualified rate of endoscopes between the manual cleaning and disinfection and the mechan-ical cleaning and disinfection(x2=3.049,P=0.081);there was no significant difference in the qualified rate of disinfection of endoscopes between the secondary hospitals and the tertiary hospitald(x2=2.391,P=0.122).The status of equipping devices and facilities in endoscopy rooms,education background and titles of the endoscopy room staff were investigated,the equipping rate of ultrasonic cleaner and purification device for terminal rinse wa-ter was 71.43％in the endoscopy rooms,and the equipping rate of other devices and facilities was 100％.The ed-ucation level and titles of the staff were generally low.CONCLUSION The overall status of disinfection of the endo-scopes is favorable in the sentinel hospitals of Urumqi,but there are still some hospitals in which the disinfection of endoscopes is not qualified.It is necessary to actively take intervention measures to improve the quality of disin-fection and prevent nosocomial infection and meanwhile strengthen the training and management of the process of cleaning and disinfection so as to carry out the cleaning and disinfection according to rules.
Sentinel hospitalDisinfection of endoscopeDisinfection quality managementMicrobial contamina-tionPseudomonas aeruginosaManagement of endoscope roomPrevalence surveyUrumqi
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