title: Ability of chlorhexidine, octenidine, polyhexanide and chloroxylenol to inhibit metabolism of biofilm-forming clinical multidrug-resistant organisms creator: Günther, Frank creator: Blessing, Brigitte creator: Dapunt, Ulrike creator: Mischnik, Alexander creator: Mutters, Nico T. subject: ddc-610 subject: 610 Medical sciences Medicine description: Purpose: This in vitro study was designed to determine if standard antiseptics used for skin and environmental surface cleansing can disrupt the metabolic activity (as a measure of viability) of multidrug-resistant gram-negative bacteria, methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant Enterococcus isolates within their native biofilms. Methods: Sixty clinical isolates of multidrug-resistant bacteria were selected for testing in different chlorhexidine gluconate, octenidine, polyhexanide and chloroxylenol concentrations. Metabolic inhibition of biofilm for each clinical isolate was analysed using a biofilm viability assay. Results: Chlorhexidine gluconate (mean = 83.8% ± 9.8%) and octenidine (mean = 84.5% ± 6.8%) showed the greatest efficacy against biofilms of the tested microorganisms, with the greatest efficacies against MRSA. The antiseptics demonstrated the least efficacy against biofilms of Pseudomonas aeruginosa. Conclusion: Chlorhexidine gluconate and octenidine showed the greatest level of bacterial metabolic inhibition and were statistically equivalent. Polyhexanide was more effective than chloroxylenol, but both were inferior to chlorhexidine gluconate and octenidine against the tested organisms. publisher: Sage date: 2021 type: Article type: info:eu-repo/semantics/article type: NonPeerReviewed format: application/pdf identifier: https://archiv.ub.uni-heidelberg.de/volltextserverhttps://archiv.ub.uni-heidelberg.de/volltextserver/29374/1/10.1177_1757177420963829.pdf identifier: DOI:10.11588/heidok.00029374 identifier: https://doi.org/10.1177/1757177420963829 identifier: urn:nbn:de:bsz:16-heidok-293749 identifier: Günther, Frank ; Blessing, Brigitte ; Dapunt, Ulrike ; Mischnik, Alexander ; Mutters, Nico T. (2021) Ability of chlorhexidine, octenidine, polyhexanide and chloroxylenol to inhibit metabolism of biofilm-forming clinical multidrug-resistant organisms. Journal of Infection Prevention, 22 (1). pp. 12-18. ISSN 1757-1774 (Druck-Ausg.); 1757-1782 (Online-Ausg.) relation: https://archiv.ub.uni-heidelberg.de/volltextserver/29374/ rights: info:eu-repo/semantics/openAccess rights: http://archiv.ub.uni-heidelberg.de/volltextserver/help/license_urhg.html language: eng