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Title: Intraarterial biocompatibility of polyethylene terephthalate self-expandable stents implanted in porcine peripheral arteries
Authors: De Scheerder, I K ×
Wilczek, K V
Verbeken, Eric
Barios, L
Piessens, Jan
De Geest, H #
Issue Date: Feb-1995
Series Title: Academic Radiology vol:2 issue:2 pages:154-8
Abstract: RATIONALE AND OBJECTIVES: We tested deployment feasibility and intraarterial biocompatibility of polyethylene terephthalate (PET) self-expandable vascular stents in a porcine peripheral artery model. METHODS: To assess the thrombogenicity and neointimal response to oversized PET self-expandable stents, we implanted 10 stents in porcine common iliac arteries, followed by a 6-mm balloon inflation to 6 atm. RESULTS: All pigs survived until the study termination 6 weeks after stent implantation. Control angiography revealed stent closure in three pigs. Minimal stent luminal diameter (MSLD) was measured using a semiautomated edge detection algorithm. The difference in MSLD after stent implantation and at control after 6 weeks was not significant (4.9 +/- 0.5 mm-->4.7 +/- 1.0 mm). Histopathologic examination showed signs of thrombotic occlusion and revascularization in occluded stents. In patient stents only a mild fibromuscular neointimal response was seen. CONCLUSION: PET self-expandable stents implanted in porcine iliac arteries are possibly thrombogenic but do not lead to a significant neointimal response.
URI: 
ISSN: 1076-6332
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Translational Cell & Tissue Research
Cardiology
× corresponding author
# (joint) last author

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