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- W2024391684 abstract "In this paper we examine whether the structure, geometry and dimensions of coronary stents influence the occurrence of restenosis. Whilst many consider these parameters to be less important since the advent of drug-eluting stents, this view reveals a poor appreciation of the technological development of stents over the last 18 years. Early ‘slotted tube’ stents were completely inflexible and posed major problems for delivery; and early ‘coil’ stents had poor radial strength, allowing considerable tissue prolapse. Nowadays, we are used to greatly improved physical stent parameters, which provide better deliverability, visibility, procedural success and scaffolding performance. Many of these physical parameters also impact upon restenosis, even in the current era of drug-eluting stent. In this paper we examine the contribution of mode of expansion (self vs. balloon-expandable), design (coil vs. tube), length and width to restenosis. We also consider the more subtle influence of advanced slotted tube vs. modular design, percent metal coverage, strut thickness, strut shape, surface smoothness and alloy composition. Cet article évalue les éventuelles corrélations entre la structure, la géométrie, les dimensions des stents coronaires et la survenue éventuelle d'une resténose. Bien que ces paramètres semblent moins importants depuis l'arrivée des stents « actifs », cette revue met en évidence les développements technologiques des stents sur les 18 dernières années. Les stents « slotted tubes » étaient totalement inflexibles et posaient des problèmes majeurs pour la mise en place. Les stents « coil » avaient une force radiale insuffisante pouvant entraîner un prolapsus tissulaire. Actuellement, les paramètres physiques des stents permettent un meilleur largage, une meilleure visibilité, un meilleur soutien et un succès procédural plus important. Plusieurs de ces paramètres physiques ont un impact sur la resténose, même dans l'aire des stents actifs. Dans cet article, nous examinons l'importance du mode d'expansion (self vs balloon-expandable), la structure (coil vs tube), la longueur et la largeur des endoprothèses sur la resténose. Nous évaluons enfin l'influence de la structure modulaire ou tubulaire, du pourcentage de la couverture en métal, de l'épaisseur et de la surface des mailles dans leur relation avec la resténose." @default.
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- W2024391684 date "2004-05-01" @default.
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- W2024391684 title "The influence of physical stent parameters upon restenosis" @default.
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- W2024391684 doi "https://doi.org/10.1016/j.patbio.2004.03.013" @default.
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