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Updated: Jun 4, 2026

Modified Octopus Technique for Thoracoabdominal Aortic Aneurysm
Published on: August 1, 2025
The chimney procedure is an emergently available endovascular solution for visceral aortic aneurysm rupture
Felix J V Schlösser1, John E Aruny, Carter B Freiburg
1Department of Surgery, Section of Vascular Surgery, Yale University School of Medicine, New Haven, CT, USA.
Abstract:
A 79-year-old woman presented with a ruptured saccular thoracoabdominal aortic aneurysm involving the celiac and mesenteric artery. The patient was unfit for open surgical repair. A "chimney" procedure was performed, which involved placement of stents in the aortic side branches alongside the endograft. The patient underwent another chimney procedure 2 weeks later for a type I endoleak. Computed tomography angiography (CTA) at 1 and 6 months showed a good result with no endoleaks or graft migration. The chimney procedure provides an alternative for emergency patients unfit for open repair and has the advantage that stents can be used that are already available in most institutions.
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