Purpose: To report a single-center result of patients with pararenal aneurysms treated with inner-branched endograft.
Materials And Methods: This retrospective study analyzed prospectively collected data of patients treated with elective inner-branched endovascular aneurysm repair (iBEVAR) using an Artivion E-xtra custom-made endograft. Primary endpoints were clinical and technical success after iBEVAR. Secondary endpoints were overall survival, target vessel patency during follow-up, aneurysm-related mortality, and freedom from reintervention.
Results: Over a 56-month period, a total of 23 patients (19 men; 72.3±7.2 years) were treated with iBEVAR with a mean follow-up of 15 months. Technical success was achieved in 96% of procedures, incorporating 87 inner branches. Two (8.3%) intraoperative complications (target vessel dissection) were reported, without additional reinterventions needed. Two (8.3%) patients died within 30 days after initial procedure. One due to respiratory failure and the other from an ischemic stroke. During follow-up, 3 patients (13%) required reintervention, either to repair a type I or type III endoleak (n=2) or to place an iliac-branched device, that did not succeed during the initial iBEVAR procedure (n=1). Primary target vessel patency and freedom from reintervention during follow-up was, respectively, 98.9% and 87%. We revealed no aneurysm-related mortality. Overall survival was 78.3%.
Conclusion: The present study confirms previous findings that iBEVAR on the Artivion E-xtra design platform is an effective and safe procedure achieving high technical success rate in the treatment of pararenal abdominal aortic aneurysms.
Clinical Impact: Inner branched stent-graft configuration combines the benefits of FEVAR and outer-branched stent-graft technology. Implementation of inner branches in stent-grafts is gradually becoming more widespread for the treatment of aneurysms. This report supports the safe and high technical success rate of inner branched stent-grafts in treatment of pararenal abdominal aortic aneurysms.
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