Wei Zhou1,2, Wanjiang Yu2, Yunying Wang3, Ying Li1, Wei Sheng4, Qingjiang Wang5, Wenjian Xu1. 1. Department of Radiology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China. 2. Department of Radiology, Qingdao Municipal Hospital, Qingdao University, Qingdao, Shandong, China. 3. Department of Medical Genetics, Qingdao Municipal Hospital, Qingdao University, Qingdao, Shandong, China. 4. Department of Cardiovascular Surgery, Qingdao Municipal Hospital, Qingdao University, Qingdao, Shandong, China. 5. Department of Cardiovascular Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China.
Abstract
PURPOSE: This 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. METHODS: In 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. RESULTS: There 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. CONCLUSION: Postoperative surveillance is important for patients of both acute and subacute AD.
PURPOSE: This 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. METHODS: In 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. RESULTS: There 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. CONCLUSION: Postoperative surveillance is important for patients of both acute and subacute AD.