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Bacteria Aerosol Spread and Wound Bacteria Reduction with Different Methods for Wound Debridement in an Animal Model.

Journal article
Authors Henrik H. Sönnergren
Sam Polesie
Louise Strömbeck
Frank Aldenborg
Bengt R Johansson
Jan Faergemann
Published in Acta dermato-venereologica
Volume 95
Issue 3
Pages 272-277
ISSN 1651-2057
Publication year 2015
Published at Institute of Clinical Sciences, Department of Dermatology and Venereology
Institute of Biomedicine
Pages 272-277
Language en
Subject categories Dermatology and Venereal Diseases


Debridement is essential in wound treatment to remove necrotic tissue and wound bacteria but may lead to bacteria spread by aerosolization. This study investigated the wound bacterial reduction and bacterial transmission induced by debridement using curette, plasma-mediated bipolar radiofrequency ablation (Coblation®) or hydrodebridement (Versajet®). Full thickness dermal wounds in porcine joint specimens inoculated with S. aureus were debrided with curette, Coblation, Versajet, or were left untreated. During and after debridement, aerosolized bacteria were measured and to assess wound bacterial load, quantitative swab samples were taken from each wound. Only Coblation was able to reduce the bacterial load of the wound significantly. Versajet debridement resulted in a significant bacterial aerosolization, but this was not the case with Coblation and curette debridement. This study shows that Coblation is a promising wound debridement method, which effectively reduces the wound bed bacterial load without the risk of bacterial aerosolization.

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