Weber, J. and Henssler, L. and Zeman, F. and Pfeifer, C. and Alt, V. and Nerlich, M. and Huber, M. and Herbst, T. and Koller, M. and Schneider-Brachert, W. and Kerschbaum, M. and Holzmann, T. (2023) Nanosilver/DCOIT-containing surface coating effectively and constantly reduces microbial load in emergency room surfaces. JOURNAL OF HOSPITAL INFECTION, 135. pp. 90-97. ISSN 0195-6701, 1532-2939
Full text not available from this repository. (Request a copy)Abstract
Background: Colonization of near-patient surfaces in hospitals plays an important role as a source of healthcare-associated infections. Routine disinfection methods only result in short-term elimination of pathogens. Aim: To investigate the efficiency of a newly developed antimicrobial coating containing nanosilver in long-term reduction of bacterial burden in hospital surfaces to close the gap between routine disinfection cycles. Methods: In this prospective, double-blinded trial, frequently touched surfaces of a routinely used treatment room in an emergency unit of a level-I hospital were treated with a surface coating (nanosilver/DCOIT-coated surface, NCS) containing nanosilver particles and another organic biocidal agent (4,5-dichloro-2-octyl-4-isothiazolin-3-one, DCOIT), whereas surfaces of another room were treated with a coating missing both the nanosilver-and DCOIT-containing ingredient and served as control. Bacterial contamination of the surfaces was examined using contact plates and liquid-based swabs daily for a total trial duration of 90 days. After incubation, total microbial counts and species were assessed. Findings: In a total of 2880 antimicrobial samples, a significant reduction of the overall bacterial load was observed in the NCS room (median: 0.31 cfu/cm2; interquartile range: 0.00-1.13) compared with the control coated surfaces (0.69 cfu/cm2; 0.06-2.00; P < 0.001). The nanosilver-and DCOIT-containing surface coating reduced the relative risk of a critical bacterial load (defined as >5 cfu/cm2) by 60% (odds ratio 0.38, P < 0.001). No significant difference in species distribution was detected between NCS and control group. Conclusion: Nanosilver-/DCOIT-containing surface coating has shown efficiency for sus-tainable reduction of bacterial load of frequently touched surfaces in a clinical setting. 2023 The Authors. Published by Elsevier Ltd on behalf of The Healthcare Infection Society. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | HEALTH-CARE FACILITIES; SILVER NANOPARTICLES; IN-VITRO; IMPLANTS; DISINFECTION; ENVIRONMENT; INFECTIONS; INHIBITION; RESISTANCE; STANDARDS; Nanosilver; Antimicrobial surface; Surface coating; Infection prevention; Nosocomial infections; Emergency room |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Lehrstuhl für Unfallchirurgie |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 08 Mar 2024 13:25 |
| Last Modified: | 08 Mar 2024 13:25 |
| URI: | https://pred.uni-regensburg.de/id/eprint/59162 |
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