Early clinical results and studies of aortic aneurysm morphology after endovascular repair

Nonrandomized multicenter trials currently are assessing the safety and efficacy of endovascular repair for abdominal aortic aneurysms. Early data show favorable short-term results compared with standard operations. Long-term follow-up studies will test the durability of endovascular procedures, which may be affected by morphologic changes in the aorta after endovascular repair. Although several studies have already been published, more research is needed to determine the clinical repercussions of late endoleaks and device deformation related to slow alterations in aortic morphology.