Degradation Phenomena on “Homemade” Explanted Aortic Textile Endografts
Objective: In the 1990s, the concept of “homemade” endografts (EGs) using commercially available materials was proposed in clinical practice for endovascular abdominal aortic repair (EVAR). The aim of this study was to analyse the ageing phenomena of these EGs in light of explant analyses. Methods:...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2021-01-01
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| Series: | EJVES Vascular Forum |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666688X21000344 |
| _version_ | 1819096479380275200 |
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| author | Sheng-Heng Cao Jennifer Canonge Julien Gaudric Delphine Dion Salomé Kuntz Jérémie Jayet Fabien Koskas Frédéric Heim Anne Lejay Nabil Chakfé |
| author_facet | Sheng-Heng Cao Jennifer Canonge Julien Gaudric Delphine Dion Salomé Kuntz Jérémie Jayet Fabien Koskas Frédéric Heim Anne Lejay Nabil Chakfé |
| author_sort | Sheng-Heng Cao |
| collection | DOAJ |
| description | Objective: In the 1990s, the concept of “homemade” endografts (EGs) using commercially available materials was proposed in clinical practice for endovascular abdominal aortic repair (EVAR). The aim of this study was to analyse the ageing phenomena of these EGs in light of explant analyses. Methods: The study focused on five explanted homemade EGs collected from 2012 to 2014. The explants were assessed in accordance with the ISO 9001/13485 certified standard protocol, which included naked eye evaluation, organic remnant cleaning, and microscopic and endoscopic examinations and analysis (magnification range from 20% to 200%). The observations report followed a classification based on 12 features assessing the fabric cover, the stitch filament, and the stents. Results: The reasons for explantation were type 1 endoleak in three cases and aneurysm sac growth in two. The implantation duration ranged from 56 to 202 months. Sixty three per cent of the fabric surface lesions (holes and tears) were related to abrasion between the fabric and the stents. Up to 33% of the knots used to connect adjacent stents were broken on one EG. Other defects including running suture rupture and stent corrosion were also observed. The overall hole cumulated surface ranged from 0.377 mm2 (56 month of implantation) up to 3.21 mm2 (78 month of implantation). Conclusion: In this study, various ageing phenomena on homemade textile EGs were identified and classified. The main damaging mechanisms were related to abrasion stress leading to tears and holes in the fabric, stitch ruptures, and detachment of stent segments responsible for serious EG deformations and further degradation. |
| first_indexed | 2024-12-21T23:59:51Z |
| format | Article |
| id | doaj.art-3c990a8f1bf549cbadda42fd969bd1bb |
| institution | Directory Open Access Journal |
| issn | 2666-688X |
| language | English |
| last_indexed | 2024-12-21T23:59:51Z |
| publishDate | 2021-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | EJVES Vascular Forum |
| spelling | doaj.art-3c990a8f1bf549cbadda42fd969bd1bb2022-12-21T18:45:44ZengElsevierEJVES Vascular Forum2666-688X2021-01-015328Degradation Phenomena on “Homemade” Explanted Aortic Textile EndograftsSheng-Heng Cao0Jennifer Canonge1Julien Gaudric2Delphine Dion3Salomé Kuntz4Jérémie Jayet5Fabien Koskas6Frédéric Heim7Anne Lejay8Nabil Chakfé9Groupe Européen de Recherche sur les Prothèses Appliquées à la Chirurgie Vasculaire, Strasbourg, FranceGroupe Européen de Recherche sur les Prothèses Appliquées à la Chirurgie Vasculaire, Strasbourg, FranceGroupe Européen de Recherche sur les Prothèses Appliquées à la Chirurgie Vasculaire, Strasbourg, France; Department of Vascular Surgery La Pitié Salpétrière, Sorbonne Université, Paris, FranceGroupe Européen de Recherche sur les Prothèses Appliquées à la Chirurgie Vasculaire, Strasbourg, FranceGroupe Européen de Recherche sur les Prothèses Appliquées à la Chirurgie Vasculaire, Strasbourg, France; Department of Vascular Surgery and Kidney Transplantation, University Hospital of Strasbourg, Strasbourg, FranceGroupe Européen de Recherche sur les Prothèses Appliquées à la Chirurgie Vasculaire, Strasbourg, France; Department of Vascular Surgery La Pitié Salpétrière, Sorbonne Université, Paris, FranceDepartment of Vascular Surgery La Pitié Salpétrière, Sorbonne Université, Paris, FranceGroupe Européen de Recherche sur les Prothèses Appliquées à la Chirurgie Vasculaire, Strasbourg, France; Laboratoire de Physique et Mécanique Textile, Université de Haute-Alsace, Mulhouse, FranceGroupe Européen de Recherche sur les Prothèses Appliquées à la Chirurgie Vasculaire, Strasbourg, France; Department of Vascular Surgery and Kidney Transplantation, University Hospital of Strasbourg, Strasbourg, FranceGroupe Européen de Recherche sur les Prothèses Appliquées à la Chirurgie Vasculaire, Strasbourg, France; Department of Vascular Surgery and Kidney Transplantation, University Hospital of Strasbourg, Strasbourg, France; Corresponding author. Department of Vascular Surgery and Kidney Transplantation, Les Hôpitaux Universitaires de Strasbourg, B.P. 426, 67091, Strasbourg Cedex, France.Objective: In the 1990s, the concept of “homemade” endografts (EGs) using commercially available materials was proposed in clinical practice for endovascular abdominal aortic repair (EVAR). The aim of this study was to analyse the ageing phenomena of these EGs in light of explant analyses. Methods: The study focused on five explanted homemade EGs collected from 2012 to 2014. The explants were assessed in accordance with the ISO 9001/13485 certified standard protocol, which included naked eye evaluation, organic remnant cleaning, and microscopic and endoscopic examinations and analysis (magnification range from 20% to 200%). The observations report followed a classification based on 12 features assessing the fabric cover, the stitch filament, and the stents. Results: The reasons for explantation were type 1 endoleak in three cases and aneurysm sac growth in two. The implantation duration ranged from 56 to 202 months. Sixty three per cent of the fabric surface lesions (holes and tears) were related to abrasion between the fabric and the stents. Up to 33% of the knots used to connect adjacent stents were broken on one EG. Other defects including running suture rupture and stent corrosion were also observed. The overall hole cumulated surface ranged from 0.377 mm2 (56 month of implantation) up to 3.21 mm2 (78 month of implantation). Conclusion: In this study, various ageing phenomena on homemade textile EGs were identified and classified. The main damaging mechanisms were related to abrasion stress leading to tears and holes in the fabric, stitch ruptures, and detachment of stent segments responsible for serious EG deformations and further degradation.http://www.sciencedirect.com/science/article/pii/S2666688X21000344Aortic endograftsDegradationPolyesterStentTextile |
| spellingShingle | Sheng-Heng Cao Jennifer Canonge Julien Gaudric Delphine Dion Salomé Kuntz Jérémie Jayet Fabien Koskas Frédéric Heim Anne Lejay Nabil Chakfé Degradation Phenomena on “Homemade” Explanted Aortic Textile Endografts EJVES Vascular Forum Aortic endografts Degradation Polyester Stent Textile |
| title | Degradation Phenomena on “Homemade” Explanted Aortic Textile Endografts |
| title_full | Degradation Phenomena on “Homemade” Explanted Aortic Textile Endografts |
| title_fullStr | Degradation Phenomena on “Homemade” Explanted Aortic Textile Endografts |
| title_full_unstemmed | Degradation Phenomena on “Homemade” Explanted Aortic Textile Endografts |
| title_short | Degradation Phenomena on “Homemade” Explanted Aortic Textile Endografts |
| title_sort | degradation phenomena on homemade explanted aortic textile endografts |
| topic | Aortic endografts Degradation Polyester Stent Textile |
| url | http://www.sciencedirect.com/science/article/pii/S2666688X21000344 |
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