Standard use of the Endurant abdominal device for ch-EVAR in >120 patients is associated with high technical success, significant aneurysm sac regression, and low incidence of secondary procedures after 2-year radiologic follow-up. These results will give significant impetus to device selection, facilitating the standardization of technique.

In summary, midterm results of use of covered chimney stents for pararenal aortic pathologies show safety and feasibility with excellent patency and low incidence of endoleaks.

In patients with both normal and complex anatomy of the proximal aortic neck, the Endurant stent graft obtained acceptable results, with no difference in survival, morbidity, or reinterventions. However, there was a greater risk of type I endoleak when OL indications were applied. Longer term follow-up is required to evaluate the effectiveness of this endograft in preventing late aneurysm-related complications.

The SCI rate after endovascular repair of TAAA was 16%, with 8% of those patients suffering from paraplegia. Prophylactic use of CSFD could not reduce the SCI rate and was associated with 6% adverse events. The percentage of thoracic aortic coverage was the most powerful determinant of SCI in these series.