ArticleEuropean radiology experimental2023
Feasibility of aortic aneurysm sac embolization using a novel shape memory polymer embolic device.
Article in European radiology experimental, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 9 citations in OpenAlex.
- Evolution of Sac Filling Techniques and Concepts in Endovascular Treatment of Abdominal Aortic Aneurysm: A Narrative Review.Journal of cardiovascular development and disease · 2026Review
- Laser fenestration and shape memory polymer embolization of type II endoleaks.Journal of vascular surgery cases and innovative techniques · 2026Article
- An endovascular porcine model of abdominal aortic aneurysm for interventional radiology research.European radiology experimental · 2026Article
- Initial Clinical Experience with Shape Memory Polymer Plugs for Various Venous Embolization.Interventional radiology (Higashimatsuyama-shi (Japan) · 2026Article
- Technical Considerations and Preliminary Experience of Intraprocedural Aneurysm Sac Embolization During Fenestrated and Branched EVAR (Embo F/BEVAR Technique): A Case Series.Journal of clinical medicine · 2025Article
- Aortic aneurysm management results through one year with a conformable neck sealing endograft and preemptive sac embolization with shape memory polymer devices.Journal of vascular surgery cases and innovative techniques · 2025Article
- Quantifying the effect of IMPEDE-FX packing rate and volume on pressure-normalized principal wall strain in an idealized 3D-printed aneurysm model.JVS-vascular science · 2025Article
- Active aortic aneurysm sac treatment with shape memory polymer during endovascular aneurysm repair.Journal of vascular surgery cases and innovative techniques · 2023Article
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Authors and funding
6 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundWe investigated the feasibility of aneurysm sac embolization using a novel self-expanding porous shape memory polymer (SMP) device during endovascular aortic abdominal or thoracic aneurysm repair (EVAR).
methodsRetrospective analysis of consecutive patients treated at 2 centers in Germany. Patients were treated from January 2019 to July 2021 with follow-up at 7 days and 3, 6, and 12 months. Aneurysm sacs were implanted with SMP devices immediately following endograft placement during the same procedure. Primary endpoint was technically successful SMP-device deployment into the aneurysm sac outside the endograft. Secondary endpoints were changes in aneurysm volume and associated complications (e.g., endoleaks).
resultsWe included 18 patients (16 males), aged 72 ± 9 years, achieving 100% technical success. Mean preprocedure aortic aneurysm sac volume was 195 ± 117 mL with a perfused aneurysm volume of 97 ± 60 mL. A mean of 24 ± 12 SMP devices per patient were used (range 5-45, corresponding to 6.25-56.25 mL expanded embolic material volume). All evaluable patients exhibited sac regression except 2 patients yet to reach 3-month follow-up. At mean 11 ± 7 months (range 3-24), change in aneurysm volume from baseline was -30 ± 21 mL (p < 0.001). In 8 patients, aneurysm regression was observed despite type 2 endoleaks in 6 and type 1A endoleaks in 2, none of them requiring further intervention to date. No morbidity or mortality related to this treatment occurred.
conclusionsSMP devices for aortic aneurysm sac embolization during endovascular repair appear feasible and safe in this small case series. Prospective studies are needed. KEY POINTS: • Shape memory polymer is a novel, self-expanding, porous, and radiolucent embolic device material. • Aortic aneurysm sacs were treated with polymer devices immediately following endograft placement. • Aortic aneurysm sac regression was observed in all patients with over 3-month follow-up. • Aortic aneurysm sac regression was observed even in the presence of endoleaks.
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