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

Abstract

Objective: To evaluate the mid-term outcomes following TEVAR for chronic type B aortic dissection (TBD), especially to know which re-entry closure affecting on 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 renal artery, infrarenal aorta and unilateral or bilateral iliac artery. Results: Complete shrinkage of the thoracic false lumen were accomplished in 67% of the early chronic cases, but in only 13% of the late chronic cases. The thoracic false lumen shrinkage over 5 mm in diameter were obtained in 78% of the early chronic cases and in 69% of the late chronic cases. Univariate and multiple logistic regression analyses revealed the re-entry closure of common or external iliac artery affected on the thoracic false lumen remodeling. Conclusion: The re-entry closure in common or external iliac artery could affected on the thoracic false lumen remodeling following TEVAR for the late chronic TBD.