Internal Iliac Artery Coil Embolization in the Prevention of Potential Type 2 Endoleak after Endovascular Repair of Abdominal Aortoiliac and Iliac Artery Aneurysms: Effect of Total Occlusion versus Residual Flow

IIA coil embolization with residual antegrade flow through the coils causes no greater incidence of type 2 endoleak after aortoiliac or iliac stent-graft placement. However, care must be taken in case of a proximal postostial origin of the iliolumbar artery on the IIA, which may cause type 2 endoleak if not embolized.