Natural History of the Iliac Arteries after Endovascular Abdominal Aortic Aneurysm Repair and Suitability of Ectatic Iliac Arteries as a Distal Sealing Zone

Abstract

Dilatation of the CIA is significant after EVAR, and it is more pronounced in ectatic iliac arteries. Although ectatic iliac arteries appear to be suitable sealing zones in the short term, continued follow-up is mandatory.

Evolution of the upper and lower landing site after endovascular aortic aneurysm repair

“…4 At the level of the distal iliac necks, there appears to be a dilatation, yet only a few studies have investigated the subject. 5 We do not know, however, if the dilatations develop in parallel (ie, affecting the proximal and distal necks in the same proportions) or if they have two distinct evolutions. In addition, we do not know whether the dilatation concerns only the anchor zone, based on which the endoprosthesis diameter was chosen, or if it encompasses the adjacent vascular segments covered by the endoprosthesis.…”

Natural history of the common iliac artery in the presence of an abdominal aortic aneurysm

“…However, continued expansion of an uncovered CIA is seen following EVAR. 25 The data presented here would predict a CIA Ͼ16 mm may exceed 18 mm within 2-3 years, which may explain the increased in type 1b endoleak seen in some series. 5,17 Alternatives for larger CIA aneurysms include extension into the external iliac artery or an iliac bifurcation device.…”

Another Late Complication after Endovascular Aneurysm Repair: Aneurysmal Degeneration at the Iliac Artery Landing Site

“…11,12 The incidence of differing diameters of common iliac artery landing sites in a population of patients undergoing EVAR has recently been published. 13 This study reported a significantly greater number of larger common iliac arteries, which exhibit accelerated dilatation compared with those iliac arteries of smaller diameter. However, we were unable to confirm this trend in our study as the diameters of all but one iliac artery lay within the normal range at the time of EVAR.…”