Title: Abdominal aortic aneurysms and endovascular sealing: deformation and dynamic response,
Abstract: Endovascular sealing is a new technique for the repair of abdominal aortic
aneurysms. Commercially available in Europe since~2013, it takes a
revolutionary approach to aneurysm repair through minimally invasive
techniques. Although aneurysm sealing may be thought as more stable than
conventional endovascular stent graft repairs, post-implantation movement of
the endoprosthesis has been described, potentially leading to late
complications. The paper presents for the first time a model, which explains
the nature of forces, in static and dynamic regimes, acting on sealed abdominal
aortic aneurysms, with references to real case studies. It is shown that
elastic deformation of the aorta and of the endoprosthesis induced by static
forces and vibrations during daily activities can potentially promote undesired
movements of the endovascular sealing structure.