Abstract
Migration of endovascular stent grafts for abdominal aortic aneurysm (AAA) is a serious complication that can result in aneurysm sac repressurisation and rupture. Secure fixation of stent-grafts in the proximal neck and the iliac legs is crucial to prevent this complication. We outline an in vitro method of investigating the resistance to migration of both a commercially available (AneuRx, Medtronic, Santa Rosa, Ca, USA) and homemade device. The devices were implanted in a silicone rubber mock AAA model and subjected to physiological pulsatile flow. The fixation strength of the AneuRx device was 8.52±0.5N and the fixation force for the homemade stent-graft was 4.62±0.25N. These results highlight the importance of longitudinal strength in devices without hooks or barbs on the proximal stent.
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© 2009 Springer-Verlag Berlin Heidelberg
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Corbett, T.J., Callanan, A., O’Donnell, M.R., McGloughlin, T.M. (2009). A Novel In Vitro Method for Assessing the Resistance to Distal Displacement of Endovascular Stent Grafts for Abdominal Aortic Aneurysm Repair. In: Dössel, O., Schlegel, W.C. (eds) World Congress on Medical Physics and Biomedical Engineering, September 7 - 12, 2009, Munich, Germany. IFMBE Proceedings, vol 25/6. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-03906-5_66
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DOI: https://doi.org/10.1007/978-3-642-03906-5_66
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-03905-8
Online ISBN: 978-3-642-03906-5
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