Is ultraviolet light disinfection fit to be the future standard for the disinfection of flexible endoscopes without a working channel?

Autor: Halmans Y; Department of Otorhinolaryngology and Head and Neck Surgery, Radboud University, Medical Center Nijmegen, Nijmegen, The Netherlands., Wellenstein DJ; Department of Otorhinolaryngology and Head and Neck Surgery, Radboud University, Medical Center Nijmegen, Nijmegen, The Netherlands., Romijn M; Department of Otorhinolaryngology and Head and Neck Surgery, Radboud University, Medical Center Nijmegen, Nijmegen, The Netherlands., Cremers S; Department of Hygiene and Infection Prevention, Radboud University, Medical Center Nijmegen, Nijmegen, The Netherlands., Smit JJ; Department of Pharmacy, Radboud University, Medical Center Nijmegen, Nijmegen, The Netherlands., Hopman J; Department of Medical Microbiology, Radboud University, Medical Center Nijmegen, Nijmegen, The Netherlands., Takes RP; Department of Otorhinolaryngology and Head and Neck Surgery, Radboud University, Medical Center Nijmegen, Nijmegen, The Netherlands., van den Broek GB; Department of Otorhinolaryngology and Head and Neck Surgery, Radboud University, Medical Center Nijmegen, Nijmegen, The Netherlands.
Jazyk: angličtina
Zdroj: Clinical otolaryngology : official journal of ENT-UK ; official journal of Netherlands Society for Oto-Rhino-Laryngology & Cervico-Facial Surgery [Clin Otolaryngol] 2024 Jan; Vol. 49 (1), pp. 130-135. Date of Electronic Publication: 2023 Oct 26.
DOI: 10.1111/coa.14119
Abstrakt: Objective: To investigate colony-forming unit (CFU) reduction on contaminated flexible endoscopes (FEs) without a working channel after UV-C light disinfection, compared to the current disinfection method with the endoscope washer disinfector (EWD).
Design, Setting and Participants: After pharyngolaryngoscopy, a manual pre-cleaning with tap water was performed. A culture was then collected by rolling the distal 8-10 cm of the FE over an Agar plate. The FE was disinfected using the D60 (60-s disinfection process with UV-C light) or the EWD (gold standard reprocessing process with water and chemicals). Another culture was then taken. After incubation, a CFU count was performed.
Results: A total of 200 FEs without a working channel were divided equally between the two disinfection groups. After clinical use and manual pre-cleaning, 84 of the 100 (84.0%) (UV-C light group) and 79 of the 100 (79.0%) (EWD) FEs were contaminated with at least 1 CFU. FEs that showed no contamination after use were excluded from further analysis. After disinfection with UV-C light, 72 (85.7%) FEs showed no contamination (i.e., 0 CFUs) versus 66 (83.5%) FEs after reprocessing with the EWD.
Conclusion: There is no difference in CFUs reduction on contaminated FEs without a working channel between UV-C light disinfection and the current gold standard, the EWD.
(© 2023 The Authors. Clinical Otolaryngology published by John Wiley & Sons Ltd.)
Databáze: MEDLINE
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