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JX Bi, XC Dai, YD Luo, JC Zhu, HL Fan, Z Feng, YW Zhang and FG Hu
Abstract
Objective: To evaluate the short-term effect of left subclavian artery (LSA) reconstruction with pre fenestration and external branch thoracic endovascular aortic repair (TEVAR) in the treatment of aortic arch descending lesions. Methods: The clinical data of 79 patients with aortic diseases who received LSA reconstruction in Tianjin Medical University General Hospital from November 2015 to October 2019 were analyzed retrospectively. According to different LSA reconstruction methods, they were divided into the fenestrated group (group f) 50 cases and the external branched group (group b) 29 cases. The surgical success rate, intraoperative and postoperative complication rate, re-intervention rate, mortality rate, and the change of the true and false lumen area of the dissection were compared and analyzed. Results: There were no significant differences in the perioperative and recent total complication rate, secondary intervention rate and mortality between the two groups (χ²=0, 1.246, 0.156, all P>0.05). The operation time of group f [(123.0±40.7 min)] was significantly longer than that of group b ((84.2±16.3) min, t=2.173, P=0.034). The degree of false lumen thrombosis of the stent segment was better than that of the non-stent segment (χ²=7.213, 14.359, both P<0.05) in the two groups after surgery, but no significant difference between the two groups (χ²=1.510, 0.886, both P>0.05). There was no significant difference in the change rate of the true and false lumen on each plane of the dissection between the two groups (all P>0.05). Conclusions: Both fenestrated and external branched TEVAR reconstruction LSA have good safety and effectiveness in treating aortic arch descending lesions. The external branched TEVAR takes less time, has higher effectiveness for lesions with shorter landing zone, and has better aortic remodeling effect in the stent segment soon; and the fenestrated TEVAR has better economy.
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