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the claim
Vascular stents have a predictable expected lifespan
the verdict
INSUFFICIENT LEANING
refutedsupported
the weight of evidence
2 sources for · 0 against

The retrieved literature provides partial data on patency rates over specific multi-year periods and discusses ongoing research into fatigue life prediction, but does not establish a broadly predictable expected lifespan for vascular stents.

Evidence for · 2
2025 · cited by 1
OBJECTIVE Traditionally, disease of the common femoral artery (CFA) has been treated with open endarterectomy. However, advances in endovascular techniques, particularly with the Supera stent (Abbott Vascular Inc. CA, USA), a flexible, fracture-resistant nitinol device, offer a less invasive alternative. METHODS We retrospectively analyzed 33 patients treated with Supera stenting for symptomatic CFA disease at three institutions between January 2021 and June 2023. Patient characteristics, procedural details, and clinical outcomes were reviewed. Primary endpoints included stent patency at 1, 2, and 3 years, need for reintervention, amputation, or mortality. RESULTS Most patients (88%) presented with intermittent claudication; the remainder had critical limb ischemia. Stent deployment was successful in all patients; most procedures were performed via a crossover approach. At 1, 2, and 3 years, primary patency rates were 88%, 83%, and 79%, respectively. Accounting for successful interventions in cases of restenosis, primary assisted patency reached 100% at 3 years among patients with full follow-up. No amputations or device failures were observed CONCLUSIONS: Supera stenting appears to be a safe, effective alternative to open surgery for CFA disease. While open surgery remains the gold standard, we believe Supera stenting should be considered more routinely, especially in patients at increased surgical risk, pending further evidence from ongoing randomized trials.
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The analysis

rails:sufficiency:partial_only:for=0+2p:against=0+0p | v55:multi_partial_one_side:lean=lean_partial:for:one_sided

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Towards a Fracture Mechanics-Based Assessment for Fatigue Life Prediction of Ni–Ti Stents | Shape Memory and Superelasticity | Springer Nature Link # Towards a Fracture Mechanics-Based Assessment for Fatigue Life Prediction of Ni–Ti Stents - ORIGINAL RESEARCH ARTICLE - Open access - Published: 03 September 2024 - Volume 10, pages 356–371 (2024) - Cite this article You have full access to this open access article Shape Memory and Superelasticity Aims and scope Submit manuscript ## Abstract The fatigue failure of Ni–Ti peripheral stents still represents an open issue of major concern due to the non-linear material behavior, the complex loads acting in vivo, and the manufacturing process. The fatigue assessment currently exploits total-life methodologies devoted to preventing crack nucleation. This work investigates a complementary fracture mechanics-based approach accounting for crack propagation from pre-existing manufacturing defects. Fatigue crack growth tests were performed on rolled Ni–Ti samples with a thickness and microstructure comparable to that of stents. A fracture mechanics-based assessment was implemented to predict the fatigue durability of surrogate samples tes
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held for human review08 Aug 2026
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