• Wei Zhou, Wanjiang Yu, Yunying Wang, Ying Li, Wei Sheng, Qingjiang Wang, and Wenjian Xu.
• Department of Radiology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China.
• Ann Thorac Cardiovasc Surg. 2019 Feb 20; 25 (1): 46-55.

PurposeThis study analyzed the different levels of aortic remodeling in patients with DeBakey IIIb aortic dissection (AD) after thoracic endovascular aortic repair (TEVAR) at a single center.MethodsIn all, 66 patients with DeBakey IIIb AD who underwent TEVAR in the acute (Group A) or subacute phase (Group SA) from January 2012 to October 2016 were included in the study. The change in aortic lumen (A), true lumen (TL), false lumen (FL), and true lumen index (TLi) at different levels were analyzed.ResultsThere was no statistically significant difference in the clinical information and morphologic imaging findings in Groups A and SA. At proximal levels (levels A-C), there was no difference in aortic remodeling parameters, that is, increased TL, decreased FL, and increased TLi at levels B and C and stable A at levels A-C, in both groups. Moreover, the above parameters were illustrated using a box-and-whisker plot, which revealed the unstable acute phase by the larger distribution interval and the median and abnormal values of the right skew distribution in Group A.ConclusionPostoperative surveillance is important for patients of both acute and subacute AD.

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