Use of Double-Barrel Gore Excluder Bifurcated Endografts for Renal Artery Incorporation in an Urgent Endovascular Repair of a Thoracoabdominal Aortic Aneurysm

Abstract

Total endovascular repair of a thoracoabdominal aortic aneurysm (TAAA) in an urgent setting requires an advanced endovascular skill set and an innovative approach. We describe a novel technique of treating a symptomatic Crawford extent 4 TAAA with a combination of multilayered parallel endografting and double-barrel Gore Excluder bifurcated endografts to achieve complete aneurysm exclusion with visceral and bilateral renal artery incorporation. A 75-year-old male presented with a symptomatic 10 cm Crawford extent 4 TAAA. Severe medical comorbidities, including chronic obstructive lung disease and cardiac arrhythmia, as well as prior open infrarenal aortic aneurysm repair made him high risk for an urgent re-do open repair. His previous open infrarenal aortic replacement created a short distance between the lowest renal artery and the flow divider of the aortic graft, which posed a challenge in using a bifurcated aortic endograft as a distal component of the previously described multilayered parallel endografting. Therefore, celiac and superior mesenteric arteries were treated with a multilayered parallel grafting configuration, whereas bilateral renal arteries were incorporated using side-by-side bifurcated modular stent grafts in double-barrel fashion. Contralateral gates served as cuffs for renal artery branch stent grafts, and ipsilateral limbs were deployed within the common iliac arteries. The patient recovered well and was discharged 3 days after repair. Follow-up imaging at 1 month demonstrated patent celiac, superior mesenteric, and bilateral renal artery flow, with no endoleak and stable aneurysm sac. The patient is doing well clinically 1 year after the operation.