Comparison of Intact Fish Skin Graft and Allograft as Temporary Coverage for Full-Thickness Burns: A Non-Inferiority Study

The extent and depth of burn injury may mandate temporary use of cadaver skin (allograft) to protect the wound and allow the formation of granulation tissue while split-thickness skin grafts (STSGs) are serially harvested from the same donor areas. However, allografts are not always available and ha...

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Main Authors: Randolph Stone, Emily C. Saathoff, David A. Larson, John T. Wall, Nathan A. Wienandt, Skuli Magnusson, Hilmar Kjartansson, Robert J. Christy, Shanmugasundaram Natesan
Format: Article
Language:English
Published: MDPI AG 2024-03-01
Series:Biomedicines
Subjects:
Online Access:https://www.mdpi.com/2227-9059/12/3/680
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author Randolph Stone
Emily C. Saathoff
David A. Larson
John T. Wall
Nathan A. Wienandt
Skuli Magnusson
Hilmar Kjartansson
Robert J. Christy
Shanmugasundaram Natesan
author_facet Randolph Stone
Emily C. Saathoff
David A. Larson
John T. Wall
Nathan A. Wienandt
Skuli Magnusson
Hilmar Kjartansson
Robert J. Christy
Shanmugasundaram Natesan
author_sort Randolph Stone
collection DOAJ
description The extent and depth of burn injury may mandate temporary use of cadaver skin (allograft) to protect the wound and allow the formation of granulation tissue while split-thickness skin grafts (STSGs) are serially harvested from the same donor areas. However, allografts are not always available and have a high cost, hence the interest in identifying more economical, readily available products that serve the same function. This study evaluated intact fish skin graft (IFSG) as a temporary cover to prepare the wound bed for STSG application. Thirty-six full-thickness (FT) 5 × 5 cm burn wounds were created on the dorsum of six anesthetized Yorkshire pigs on day −1. To mimic the two-stage clinical situation, on day 0, wounds were excised down to a bleeding wound bed and a temporary cover (either IFSG or cadaver porcine skin) was applied; then, on day 7, wounds were debrided to a viable wound bed prior to the application of autologous 1.5:1 meshed STSG (mSTSG). Rechecks were performed on days 14, 21, 28, 45, and 60 with digital images, non-invasive measurements, and punch biopsies. The IFSG created a granulated wound bed receptive to the application of an mSTSG. FT burn wounds treated with an IFSG had similar outcome measures, including contraction rates, trans-epidermal water loss (TEWL) measurements, hydration, and blood perfusion levels, compared to cadaver skin-treated burn wounds. Pathology scoring indicated significant differences between the allograft- and IFSG-treated wounds on day 7, with the IFSG having increased angiogenesis, granulation tissue formation, and immune cells. Pathology scoring indicated no significant differences once mSTSGs were applied to wounds. The IFSG performed as well as cadaver skin as a temporary cover and was not inferior to the standard of care, suggesting the potential to transition IFSGs into clinical use for burns.
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spelling doaj.art-ff01ed3755064572b9346d16350a36f02024-03-27T13:27:22ZengMDPI AGBiomedicines2227-90592024-03-0112368010.3390/biomedicines12030680Comparison of Intact Fish Skin Graft and Allograft as Temporary Coverage for Full-Thickness Burns: A Non-Inferiority StudyRandolph Stone0Emily C. Saathoff1David A. Larson2John T. Wall3Nathan A. Wienandt4Skuli Magnusson5Hilmar Kjartansson6Robert J. Christy7Shanmugasundaram Natesan8Combat Wound Care Research Department, US Army Institute of Surgical Research, JBSA Fort Sam Houston, Houston, TX 78234, USACombat Wound Care Research Department, US Army Institute of Surgical Research, JBSA Fort Sam Houston, Houston, TX 78234, USACombat Wound Care Research Department, US Army Institute of Surgical Research, JBSA Fort Sam Houston, Houston, TX 78234, USACombat Wound Care Research Department, US Army Institute of Surgical Research, JBSA Fort Sam Houston, Houston, TX 78234, USAComparative Pathology Department, US Army Institute of Surgical Research, JBSA Fort Sam Houston, Houston, TX 78234, USAKerecis<sup>®</sup>, 101 Reykjavik, IcelandKerecis<sup>®</sup>, 101 Reykjavik, IcelandCombat Wound Care Research Department, US Army Institute of Surgical Research, JBSA Fort Sam Houston, Houston, TX 78234, USACombat Wound Care Research Department, US Army Institute of Surgical Research, JBSA Fort Sam Houston, Houston, TX 78234, USAThe extent and depth of burn injury may mandate temporary use of cadaver skin (allograft) to protect the wound and allow the formation of granulation tissue while split-thickness skin grafts (STSGs) are serially harvested from the same donor areas. However, allografts are not always available and have a high cost, hence the interest in identifying more economical, readily available products that serve the same function. This study evaluated intact fish skin graft (IFSG) as a temporary cover to prepare the wound bed for STSG application. Thirty-six full-thickness (FT) 5 × 5 cm burn wounds were created on the dorsum of six anesthetized Yorkshire pigs on day −1. To mimic the two-stage clinical situation, on day 0, wounds were excised down to a bleeding wound bed and a temporary cover (either IFSG or cadaver porcine skin) was applied; then, on day 7, wounds were debrided to a viable wound bed prior to the application of autologous 1.5:1 meshed STSG (mSTSG). Rechecks were performed on days 14, 21, 28, 45, and 60 with digital images, non-invasive measurements, and punch biopsies. The IFSG created a granulated wound bed receptive to the application of an mSTSG. FT burn wounds treated with an IFSG had similar outcome measures, including contraction rates, trans-epidermal water loss (TEWL) measurements, hydration, and blood perfusion levels, compared to cadaver skin-treated burn wounds. Pathology scoring indicated significant differences between the allograft- and IFSG-treated wounds on day 7, with the IFSG having increased angiogenesis, granulation tissue formation, and immune cells. Pathology scoring indicated no significant differences once mSTSGs were applied to wounds. The IFSG performed as well as cadaver skin as a temporary cover and was not inferior to the standard of care, suggesting the potential to transition IFSGs into clinical use for burns.https://www.mdpi.com/2227-9059/12/3/680swineburn injuryskin regenerationcontractiontemporary coveringallograft
spellingShingle Randolph Stone
Emily C. Saathoff
David A. Larson
John T. Wall
Nathan A. Wienandt
Skuli Magnusson
Hilmar Kjartansson
Robert J. Christy
Shanmugasundaram Natesan
Comparison of Intact Fish Skin Graft and Allograft as Temporary Coverage for Full-Thickness Burns: A Non-Inferiority Study
Biomedicines
swine
burn injury
skin regeneration
contraction
temporary covering
allograft
title Comparison of Intact Fish Skin Graft and Allograft as Temporary Coverage for Full-Thickness Burns: A Non-Inferiority Study
title_full Comparison of Intact Fish Skin Graft and Allograft as Temporary Coverage for Full-Thickness Burns: A Non-Inferiority Study
title_fullStr Comparison of Intact Fish Skin Graft and Allograft as Temporary Coverage for Full-Thickness Burns: A Non-Inferiority Study
title_full_unstemmed Comparison of Intact Fish Skin Graft and Allograft as Temporary Coverage for Full-Thickness Burns: A Non-Inferiority Study
title_short Comparison of Intact Fish Skin Graft and Allograft as Temporary Coverage for Full-Thickness Burns: A Non-Inferiority Study
title_sort comparison of intact fish skin graft and allograft as temporary coverage for full thickness burns a non inferiority study
topic swine
burn injury
skin regeneration
contraction
temporary covering
allograft
url https://www.mdpi.com/2227-9059/12/3/680
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