Title :

How to improve donor skin availability: Pragmatic procedures to minimize the discard rate of cryopreserved allografts in skin banking

Author(s) :

Germain, Nicolas [Auteur]
Hétérogénéité, Plasticité et Résistance aux Thérapies des Cancers = Cancer Heterogeneity, Plasticity and Resistance to Therapies - UMR 9020 - U 1277 [CANTHER]
Hatzfeld, Anne-Sophie [Auteur]
Centre Hospitalier Régional Universitaire [CHU Lille] [CHRU Lille]
Pasquesoone, Louise [Auteur]
Centre Hospitalier Régional Universitaire [CHU Lille] [CHRU Lille]
Danze, Pierre- Marie [Auteur]
Centre Hospitalier Régional Universitaire [CHU Lille] [CHRU Lille]
Guerreschi, Pierre [Auteur]
Advanced Drug Delivery Systems (ADDS) - U1008
Centre Hospitalier Régional Universitaire [CHU Lille] [CHRU Lille]
Sendid, Boualem [Auteur]
Unité de Glycobiologie Structurale et Fonctionnelle (UGSF) - UMR 8576
Lille Inflammation Research International Center - U 995 [LIRIC]
Gaillot, Olivier [Auteur]
Centre d'Infection et d'Immunité de Lille (CIIL) - U1019 - UMR 9017
Centre d’Infection et d’Immunité de Lille - INSERM U 1019 - UMR 9017 - UMR 8204 [CIIL]
Marchetti, Philippe [Auteur]
Hétérogénéité, Plasticité et Résistance aux Thérapies des Cancers = Cancer Heterogeneity, Plasticity and Resistance to Therapies - UMR 9020 - U 1277 [CANTHER]
Cancer Heterogeneity, Plasticity and Resistance to Therapies (CANTHER) - UMR 9020 - UMR 1277

Journal title :

Burns

Volume number :

47

Pages :

387-396

Publisher :

Elsevier BV

Publication date :

2021-03

ISSN :

0305-4179

English keyword(s) :

Tissue banking
Skin allograft
Cryopreservation
Bacterial and fungal contamination

HAL domain(s) :

Sciences du Vivant [q-bio]

English abstract : [en]

Background : Microbial contamination of human skin allografts is a frequent cause of allograft discard. Our purpose was to evaluate the discard rate of skin bank contaminated allografts and specific procedures used to ...
Show more >Background : Microbial contamination of human skin allografts is a frequent cause of allograft discard. Our purpose was to evaluate the discard rate of skin bank contaminated allografts and specific procedures used to reduce allograft contamination without affecting safety. Methods : We conducted at the Lille Tissue Bank a retrospective study of all deceased donors (n = 104) harvested from January 2018 to December 2018. Skin procurement was split into 3 zones: the back of the body and the two legs that were processed separately. It represented 433 cryopreserved skin allograft pouches of approximatively 500 cm² each. Donors were almost equally split between brain-dead (53%, 55/104) and cadaveric (47%, 49/104) donors. Results : Out of all donors, 42 (40.5%) had at least one sampling zone with a positive microbiological test resulting in 106 (24%) contaminated skin pouches. The contamination rate did not vary according to the harvested zone or type of donor. Traumatic deaths showed significantly less contamination rates than other death types (p < 0.05). Contamination rate decreased with time spent in the antibiotic solution. The risk of having contaminated allografts was five-fold higher when the skin spent less than 96 h in the antibiotic cocktail (p < 0.05). According to our validation protocol, most donors (32/42, 76%) had skin allografts contaminated with bacteria (mainly Staphylococcus spp) compatible with clinical use. No recipient infection was recorded as a result of skin graft contaminated with saprophytic or non-pathogenic germs. By harvesting 3 separate zones per donor, the total surface area for clinical use increased by 53% for contaminated donors. Overall, the proportion of contamination-related discarded allografts was 3.2% (14/433 of pouches). Conclusion : Few simple pragmatic measures (including skin incubation in the antibiotic bath for at least 96 h at 4 °C, splitting the skin harvesting areas to minimize the risk of cross-infection and clinical use of allografts contaminated with saprophytic and non-pathogenic germs) can reduce the discard rate of contaminated allografts without affecting clinical safety.Show less >

Language :

Anglais

Audience :

Internationale

Popular science :

Non

Administrative institution(s) :

Université de Lille
CNRS

Collections :

• Institut de Recherche Translationnelle sur l'Inflammation (INFINITE) - U1286

Research team(s) :

Glycobiology in fungal Pathogenesis and Clinical Applications

Submission date :

2021-07-05T13:53:16Z
2021-07-12T08:42:55Z
2022-05-05T09:19:28Z
2024-03-01T08:32:56Z