Late Distal Perigraft Endoleak after Endovascular Repair of an Abdominal Aortic Aneurysm due to Cranial Migration of the Iliac Branch of a Modular Stent-Graft

Reperfusion of the aneurysmal sac after endovascular implantation of an aortic stentgraft (also called “endoleak”) is probably the major failure mode of this new technique. An endoleak may be caused by a variety of factors and can originate perioperatively or can develop later on. In the presented case the endoleak developed 4 years after stentgraft implantation due to a cranial migration and folding of the iliac limb into the aneurysmal sac. To the best of our knowledge, this particular late stent-graft migration, which led to a major endoleak, is not yet described in literature.