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Updated: Dec 23, 2025

Modified Octopus Technique for Thoracoabdominal Aortic Aneurysm
Published on: August 1, 2025
Sizing and planning fenestrated and branched stent-grafts in patients with chronic post-dissection thoracoabdominal
Emanuel R Tenorio1, Guilherme B Lima1, Giulianna B Marcondes1
1Division of Vascular and Endovascular Surgery, Mayo Clinic, Rochester MN, USA.
Abstract:
Fenestrated-branched endovascular repair (FB-EVAR) has been widely applied to treat chronic post-dissection thoracoabdominal aortic aneurysms (TAAAs) with favorable outcomes. A recent multicenter experience indicates that outcomes of FB-EVAR for chronic post-dissection are comparable to degenerative TAAAs. Anatomical and technical pitfalls are different than degenerative aneurysms because of true lumen compression, separate target vessel origin from true or false lumen and possible extension of dissection flaps into the renal and mesenteric vessels. This article focuses on planning and sizing FB-EVAR in patients with chronic post-dissection TAAAs.
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