Thoracic Stent-Graft Migration: What is the Role of the Geometric Modifications of the Stent-Graft at 3 Years?

Abstract

Introduction - Thoracic endovascular aortic repair (TEVAR) is not an instant fixation of the stent-graft in the aortic lumen, but rather a continuous process of deformation and three-dimensional change in configuration and geometry of the stent-graft over time, during the post-TEVAR aneurysm shrinkage. The aim of this study is to analyse the geometric evolution of the aortic stent-graft at mid-term follow-up and to evaluate its impact on the stent-graft (SG) migration.