Objectives: To determine the feasibility of using human cadavers to demonstrate enzymatic burn debridement, as a training aid for clinical staff.
Material And Methods: A single, fresh-frozen human cadaver was used. Prior consent had been given. Burns were created by flame and scalding. Unburned control sites were also assessed. Nexobrid® enzymatic burn debridement paste was applied to all sites, in adherence to the local clinical protocol for treating burned patients. After removal of Nexobrid®, wounds were assessed to determine if the cadaveric tissue appeared similar to what would be expected in living burned patients and whether the technique could be viable for training of burn care staff.
Results: Nexobrid® had a very similar effect upon burned cadaveric skin to what would have been expected in living burned skin. Burns of partial thickness burn depth and full thickness burn depth were debrided and could be clearly identified.
Conclusions: Fresh-frozen human cadaveric tissue is a valid means of provision of training in the technique of enzymatic burn debridement. This finding was unexpected and shows that our understanding of the mechanism of action of Nexobrid® is incomplete.
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http://dx.doi.org/10.1016/j.burns.2022.02.008 | DOI Listing |
Burns
January 2025
Pharmacy Faculty, Inonu University, Malatya, Türkiye.
Background: In the burn affected area of the skin, the progression or deepening of wounds is related to oxidative stress. Especially in the highly susceptible stasis zone, tissues survive to the extent that they can cope with oxidative stress.
Objective: This study investigated the potential of extracts (E) derived from the fruits (F) and leaves (L) of elderberry (E), chokeberry (C), and black mulberry (M), which are rich in antioxidant properties, to enhance the recovery of the stasis zone in burn wounds.
Adv Wound Care (New Rochelle)
January 2025
Kenatha Scientific Consulting LLC, Fort Worth, Texas, USA.
SN514 is a thermolysin-like enzyme under development as a debrider. Preclinical and non-clinical studies supported a first in human healthy volunteer study to predict the need for protection of periwound skin. Pharmacologic activity testing compared digestion of collagen, fibrin, and elastin with relevant enzymes.
View Article and Find Full Text PDFNat Chem Biol
January 2025
Department of Gastroenterology, Hubei Clinical Center and Key Laboratory of Intestinal and Colorectal Disease, TaiKang Center for Life and Medical Sciences, Zhongnan Hospital of Wuhan University, School of Pharmaceutical Sciences, Wuhan University, Wuhan, China.
In prokaryotes, the non-bridging oxygen in the DNA sugar-phosphate backbone can be enzymatically replaced by a sulfur atom, resulting in phosphorothioate (PT) modification. However, the mechanism underlying the oxygen-to-sulfur substitution remains enigmatic. In this study, we discovered a hypercompact DNA phosphorothioation system, TdpABC, in extreme thermophiles.
View Article and Find Full Text PDFBurns
December 2024
Burn & Plastic, Reconstructive and Aesthetic Surgery,Azienda Ospedaliera Cannizzaro, Via Messina 829, Catania, Italy.
Introduction: Burn injuries are a global health challenge, causing significant pain, tissue damage and complex wound management issues. Traditional treatments like surgical debridement, while effective, pose challenges such as blood loss, grafting requirements, and prolonged hospital stays. Enzymatic debridement, such as the Nexobrid procedure, effectively removes necrotic tissue but can be painful for patients.
View Article and Find Full Text PDFJ Clin Med
December 2024
Department of Plastic and Reconstructive Surgery, Tokyo Medical University, Tokyo 160-0023, Japan.
: We treated deep partial-thickness burns of the hands and feet in four cases using a combination of NexoBrid and ReCell autologous cell regeneration techniques, without conventional split-thickness skin graft, with good results following debridement of the eschar. : We report cases of patients treated with a combination of the NexoBrid and ReCell techniques between 1 August 2023 and 31 July 2024. The degree of debridement and the time to complete wound closure were evaluated.
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