Immediate Change in Suprarenal Neck Angulation After Endovascular Aneurysm Repair

Abstract

The Ovation stent-graft induces greater postoperative reduction in the AAA neck angulation compared to an endograft with stent-supported graft seal. Expanded research to infrarenal angle as well to greater angles and correlation to clinical events is justified.

Preliminary experience with the use of ultra-low profile endografts

“…We have no evidence to support this choice, it simply reflects our opinion that Incraft can better adapt to angulated proximal necks, while we have the opinion that Ovation could conform worse due to the presence of the polymer and the long free-flow. and Coll (14), who noted greater postoperative reduction in the suprarenal AAA neck angulation after EVAR using the Ovation graft compared with an endograft with stent-supported graft seal. Moreover, in our experience the two cases of late surgical conversion in group A were needed for type Ia endoleaks in patients who had an angulated proximal neck (greater than 45° on both sagittal and coronal axes).…”

Tips to Ensure Optimal Ring Apposition of the Ovation Stent Graft in Challenging Necks of Abdominal Aortic Aneurysms

“…Since angulation has been recognized as determinant of Type IA endoleak, we pay attention to inflation of the rings as close as possible to the tension-free postoperative neck geometry, to avoid immediate change of orientation of the inflated rings. 9 Therefore, in severely angulated necks we prefer withdrawing the super-stiff guidewire so that the rings are oriented so as to inflate somewhat obliquely to the actual infrarenal lumen centerline.…”