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Tytuł:
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UV light-based reprocessing of flexible endoscopes without working channel in Oto-Rhino-Laryngology: an effective method?
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Autorzy:
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Rudhart SA; Department of Otolaryngology, Head and Neck Surgery, University Hospital Marburg, Philipps-Universität Marburg, Baldingerstrasse, 35043, Marburg, Germany.
Günther F; Department of Medical Microbiology and Hygiene, University Hospital Marburg, Philipps-Universität Marburg, Marburg, Germany.
Dapper L; Department of Medical Microbiology and Hygiene, University Hospital Marburg, Philipps-Universität Marburg, Marburg, Germany.
Thangavelu K; Department of Otolaryngology, Head and Neck Surgery, University Hospital Marburg, Philipps-Universität Marburg, Baldingerstrasse, 35043, Marburg, Germany.
Geisthoff UW; Department of Otolaryngology, Head and Neck Surgery, University Hospital Marburg, Philipps-Universität Marburg, Baldingerstrasse, 35043, Marburg, Germany.
Stankovic P; Department of Otolaryngology, Head/Neck and Facial Plastic Surgery, Sana Kliniken Leipziger Land, Borna, Germany.
Wilhelm T; Department of Otolaryngology, Head/Neck and Facial Plastic Surgery, Sana Kliniken Leipziger Land, Borna, Germany.; Medical Faculty, Philipps-Universität Marburg, Marburg, Germany.
Stuck BA; Department of Otolaryngology, Head and Neck Surgery, University Hospital Marburg, Philipps-Universität Marburg, Baldingerstrasse, 35043, Marburg, Germany.
Hoch S; Department of Otolaryngology, Head and Neck Surgery, University Hospital Marburg, Philipps-Universität Marburg, Baldingerstrasse, 35043, Marburg, Germany. .
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Źródło:
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European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery [Eur Arch Otorhinolaryngol] 2021 Oct; Vol. 278 (10), pp. 4075-4080. Date of Electronic Publication: 2021 Mar 13.
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Typ publikacji:
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Journal Article
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Język:
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English
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Imprint Name(s):
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Original Publication: Heidelberg : Springer International, c1990-
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MeSH Terms:
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Equipment Contamination*/prevention & control
Otolaryngology*
Animals ; Disinfection ; Endoscopes ; Male ; Sheep ; Ultraviolet Rays
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References:
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Contributed Indexing:
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Keywords: Disinfection; Hygiene; Microbiology; Sterilization
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Entry Date(s):
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Date Created: 20210313 Date Completed: 20210825 Latest Revision: 20220218
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Update Code:
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20240104
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PubMed Central ID:
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PMC8382609
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DOI:
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10.1007/s00405-021-06737-1
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PMID:
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33713189
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Background: Reprocessing of flexible endoscopes (FEs) is often expensive, time consuming, and becomes increasingly complex, due to rising demands of hygiene. After beneficial results in reprocessing of rigid endoscopes using Impelux™ UV-C light technology, we tested the same method for reprocessing of FEs without working channel.
Materials and Methods: Testing was performed on FEs without working channel after routine clinical use (transnasal flexible endoscopy). Disinfection consisted of mechanical precleaning and 60 s exposure to Impelux™ UV-C light technology. Bacterial contamination was tested on 50 FEs before and after disinfection. Further 50 FEs regarding protein residuals. The absolute effectiveness of the D60 was tested on 50 test bodies (RAMS) with a standardized contamination of 10 7 colony-forming units (CFU) of Enterococcus faecium.
Results: The FEs were contaminated with a high average value of 916.7 CFU (± 1057 CFU) after clinical usage. After reprocessing, an average contamination of 2.8 CFU (± 1.6) on 14% (n = 7) of the FEs was detected consisting of non-pathogenic species, the remaining FE were sterile. After reprocessing, all FEs were protein-free (< 1 μg). The artificially contaminated test bodies showed no remaining bacterial contamination after disinfection, resulting in an average absolute germ reduction of about 10 7 CFU.
Conclusion: Impelux™ UV-C light technology efficiently reduces bacterial contamination of FEs and might be useful in daily practice.
(© 2021. The Author(s).)
