One‐Year Outcome of Small‐Vessel Disease Treated with Sirolimus‐Eluting Stents: A Subgroup Analysis of the e‐SELECT Registry

Gao, Runlin; Abizaid, Alexandre; Banning, Adrian P.; Bartorelli, Antonio L.; Džavík, Vladimir; Ellis, Stephen G.; Jeong, Myung Ho; Legrand, Victor; Spaulding, Christian; Urban, Philip

doi:10.1111/joic.12003

Cited by 7 publications

(1 citation statement)

References 60 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[8] Instead, the higher incidence rates of stent thrombosis were associated with the 2.5 mm platforms. [9] One of the major concerns for polymeric BRSs is their mechanical performance, especially their interaction with blood vessels during and after deployment. Agrawal et al [10] carried out the earliest work in assessing the in vitro performance of the Duke biodegradable stents made of Poly-L lactide (PLLA) fibres.…”

Section: Introductionmentioning

confidence: 99%

Crimping and deployment of metallic and polymeric stents -- finite element modelling

Schiavone¹,

Qiu²,

Zhao³

2017

View full text Add to dashboard Cite

How to cite this article: Schiavone A, Qiu TY, Zhao LG. Crimping and deployment of metallic and polymeric stents --finite element modelling. Vessel Plus 2017;1:12-21.Aim: This paper aims to compare the mechanical performance of metallic (Xience) and bioresorbable polymeric (Elixir) stents during the process of crimping and deployment. Methods: Finite element software ABAQUS was used to create the geometrical models and meshes for the balloon, stent and diseased artery. To simulate the crimping of stents, 12 rigid plates were generated around the stent and subjected to radially enforced displacement. The deployment of both stents was simulated by applying internal pressure to the balloon, where hard contacts were defined between balloon, stent and diseased artery. Results: Elixir stent exhibited a lower expansion rate than Xience stent during deployment. The stent diameter achieved after balloon deflation was found smaller for Elixir stent due to higher recoiling. Lower level of stresses was found in the plaque and artery when expanded by Elixir stent. Reduced expansion, increased dogboning and decreased vessel stresses were obtained when considering the crimping-generated residual stresses in the simulations. Conclusion: There is a challenge for polymeric stents to match the mechanical performance of metallic stents. However, polymeric stents impose lower stresses to the artery system due to less property mismatch between polymers and arterial tissues, which could be clinically beneficial. Key words:Polymeric stents, metallic stents, finite element, crimping, deployment ABSTRACTArticle history:

show abstract

Section: Introductionmentioning

confidence: 99%