Objective: To perform a systematic review of the literature on bacterial resistance, tolerance and susceptibility of silver within the context of wound therapy using silver-based dressings.
Methods: A literature search was carried out using PubMed, Embase and Cochrane Library databases, the focus was whether results from microbiological experimental tests with reference strains and clinical wound isolates are reflected in clinical practice with regards to their 'resistance' profiles, comparable with those observed for antibiotics. The search results were allocated to six categories: resistance and resistance mechanism, tests with standard strains and wound isolates, prevalence and incidence, impact on clinical practice and impact on antibiotic therapy as well as reviews, expert opinions and consensus.
Results: Based on all findings of the literature, it cannot be confirmed that a related clinical resistance to silver-ions in silver-based dressings has clinical impact, although endogenous and exogenous genetic resistance patterns have been described and intensively investigated. A translation of these genetic resistance-expression structures to phenotypic appearances, similar to those known for antibiotics, has not been demonstrated for silver in the literature.
Conclusion: It can be concluded that there is no definitive evidence available and further studies should be conducted.
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| http://dx.doi.org/10.12968/jowc.2020.29.4.221 | DOI Listing |
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