Abstract
Disinfection Efficacy of Ozone Water for Endoscopic Reprocessing Tae Jun Hwang, Hyun Wook Baik, Ju Sang Park, Eun Jeong Jang, Sang Jong Park, Hyue Young Han, Ki Hyung Nam, Hyun Soo Kim Aims: Although several disinfectants have been studied for the endoscopic reprocessing, the study about ozone water is insufficient. We compared the disinfection efficacy of the automated ozone water disinfection system with automated reprocessor using peracetic acid, superoxidized water and manual disinfection using peracetic acid. Materials and Methods: After upper endoscopic examinations, thirty eight cases were randomly assigned into automated disinfection using ozone water with 5 min disinfection time (8 cases), automated disinfection using peracetic acid with 20 min disinfction time (10 cases), automated disinfection using superoxidized water with 7 min disinfection time (10 cases) and manual disinfection using peracetic acid with 10 min disinfection time (10 cases). After disinfection finished, samples were obtained from insertion tubes (Site-1, S-1) and the biopsy channel (Site-2, S-2). The specimens from the S1 and the S2 were inoculated in the blood agar plate then colony count were evaluated. Results: The culture positive rate of S1 were 0% among all group. Conclusion: Despite of shorter disinfetction time, antimicrobial efficacy of the automated ozone water disinfection was better than conventional disinfectants.
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