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Journal of Long-Term Effects of Medical Implants

年間 4 号発行

ISSN 印刷: 1050-6934

ISSN オンライン: 1940-4379

SJR: 0.184 SNIP: 0.485 CiteScore™:: 1.1 H-Index: 39

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Detailed Analysis of a Series of Explanted Talent AAA Stent-Grafts: Biofunctionality Assessment

巻 21, 発行 4, 2011, pp. 299-319
DOI: 10.1615/JLongTermEffMedImplants.v21.i4.50
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要約

Six Talent stent-grafts were harvested at reoperations (N=5) and autopsy (N=1). The explants were observed nondestructively, including gross morphology, X-rays, CT scans and closed pressure system analysis. The Nitinol frames in three devices harvested at reoperations and another harvested at autopsy were intact. One had a stent fracture of the proximal bare stent, and one had a wire fracture of a thin proximal external supporting stent as well as a hole in the fabric just above the bifurcation. For the three devices structurally intact, reoperations were performed for a type 1A endoleak (one patient) and aorto-enteric fistulas (two patients). The healing characteristics were poor or absent. The fabric in the main body of the grafts harvested after aorto-enteric fistula was devoid of biological deposits. Two of the grafts harvested at reoperation demonstrated fabric holes of up to 4 mm 2. The device obtained at autopsy showed an almost continuous internal capsule with variable thickness. The luminal surface was smooth, but the capsule detached easily. The devices explanted at reoperations showed various levels of impaired biofunctionality associated with adverse outcomes. The stent-graft retrieved from autopsy was intact.

によって引用された
  1. Guidoin Robert, Zhang Ze, Douville Yvan, Nutley Mark, Commentary: Nitinol Stent Designs Need to Adhere to the 3Bs: Biofunctionality, Biodurability, and Biocompatibility, Journal of Endovascular Therapy, 21, 2, 2014. Crossref

  2. Lin Jing, Guidoin Robert, Du Jia, Wang Lu, Douglas Graeham, Zhu Danjie, Nutley Mark, Perron Lygia, Zhang Ze, Douville Yvan, An in Vitro Twist Fatigue Test of Fabric Stent-Grafts Supported by Z-Stents vs. Ringed Stents, Materials, 9, 2, 2016. Crossref

  3. Lin Jing, Wang Lu, Guidoin Robert, Nutley Mark, Song Ge, Zhang Ze, Du Jia, Douville Yvan, Stent fabric fatigue of grafts supported by Z-stents versus ringed stents: An in vitro buckling test, Journal of Biomaterials Applications, 28, 7, 2014. Crossref

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