Is ultraviolet light disinfection fit to be the future standard for the disinfection of flexible endoscopes without a working channel?
Clin Otolaryngol
; 49(1): 130-135, 2024 Jan.
Article
em En
| MEDLINE
| ID: mdl-37882501
ABSTRACT
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 ANDPARTICIPANTS:
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.Palavras-chave
Texto completo:
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Base de dados:
MEDLINE
Assunto principal:
Raios Ultravioleta
/
Desinfecção
Idioma:
En
Ano de publicação:
2024
Tipo de documento:
Article