The Presence of Gas in Aneurysm Sac during Early Postoperative Period Is Associated to the Type of Endograft and Perfused Lumen's Size

The presence of gas in the aneurysm sac after EVAR is a frequent finding on postoperative CTA and not related to infection or endoleak. Type of stent graft and size of the perfused lumen is associated with the presence of gas.