Mid-Term Outcomes Following TEVAR for Chronic Type B Aortic Dissection

Objective: To evaluate the mid-term outcomes following thoracic endovascular aortic repair (TEVAR) for chronic type B aortic dissection (TBD), especially to know which re-entry closure affects the thoracic false lumen remodeling in the late chronic TBD. Methods: From April 2017 to April 2022, 25 patients with chronic TBD underwent TEVAR. The late chronic TBD received the re-entry closure including stent-graft deployment in the renal artery, infrarenal aorta, and unilateral or bilateral iliac artery. Results: Complete shrinkage of the thoracic false lumen was accomplished in 67% of the early chronic cases but only 13% of the late chronic cases. The thoracic false lumen shrinkage over 5 mm in diameter was obtained in 78% of the early chronic cases and 69% of the late chronic cases. Univariate and multiple logistic regression analyses revealed the re-entry closure of common or external iliac artery affects the thoracic false lumen remodeling. Conclusion: The re-entry closure in the common or external iliac artery could affect the thoracic false lumen remodeling following TEVAR for the late chronic TBD. (This is a translation of Jpn J Vasc Surg 2023; 32: 351-356).