• Burns · Dec 2024

    Topical application of anti-inflammatory agents on burn wounds and their effect on healing.

    • Jamie Neelon, Irene Yau, Anders H Carlsson, Steven Blake Smithson, David E Varon, Christopher K Chan, Rodney K Chan, and Kristo Nuutila.
    • Department of Surgery, Brooke Army Medical Center, Fort Sam Houston, TX, United States; United States Army Institute of Surgical Research, Fort Sam Houston, TX, United States.
    • Burns. 2024 Dec 1; 50 (9): 107290107290.

    AbstractAdvancements in the treatment of burns have considerably improved overall survival rates, but they have also highlighted several long-term sequelae related to the injury. Hypertrophic scars can impair function, reduce quality of life, and require multiple procedures as well as physical therapy. The purpose of this study was to investigate the effects of topical application of anti-inflammatory drugs in the treatment of burns. Up to 15 deep-partial thickness burns were created on the dorsum of four anesthetized swine. Subsequently, the burn wounds were randomized to receive amiloride, celecoxib, dexamethasone or minocycline mixed in a hydrogel. Silver sulfadiazine cream and blank hydrogel acted as controls. The animals were followed for 90 days and the wounds were assessed on days 3, 7, 14, 28 and 90 post-burn. Assessments were performed using photographs (macroscopic healing, contraction), laser-speckle imaging (blood perfusion), 3D camera (scarring, pigmentation), and histology (inflammation, burn depth, epidermal maturation). Inflammation was present in all burn wound histology specimens and peaked on day 7 in all groups. Regardless of the treatment the burns progressed and were deeper on day 7 in comparison to day 3. The burns were 50 - 80 % healed by day 14, but no significant differences were observed. No differences in epidermal thickness, rete ridges, contraction, hypopigmentation, or scar elevation were seen on day 90. Topical anti-inflammatories did not significantly decrease inflammation or mitigate burn wound progression in deep partial thickness burns in pigs. Also, no significant differences in wound healing or quality of healing were observed.Copyright © 2024 International Society of Burns Injuries. All rights reserved.

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