Guidelines for the surveillance of patients with prosthesis or aortic-iliac-femoral endograft

The positioning of an endoprosthesis for aortic-iliac aneurysm, followed with success, requires exclusion of the aneurysmal sac from any blood supply with the resulting reduction of endoluminal pressure and loss of pulsatility, rearrangement of the endoluminal thrombus and reduction of the diameters. Technologies for studying the intrasac pressure with implantable sensors are currently being tested, but as of today they are not very reliable while they are very expensive instead. CTA is the gold standard for patients with EVAR. It should be carried out in the immediate post-op phase and when complications due to the endograft are detected. CDS should be used in association with AngioCTA immediately after positioning an endograft and can be used alone during follow-up in all uncomplicated cases and when it is exaustive. The timing of the check-up for a patient with EVAR should envisage a post-op check-up (within 30 days from the procedure), one every 3 months afterwards for the first year, and one every 12 months for the following years.