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).