Homemade fenestration and chimney techniques for the left subclavian artery revascularization during zone 2 thoracic endovascular aortic repair

• DOI: 10.3389/fcvm.2023.1144751
• Publication Date: 2023-05-31T05:31:20Z
• Authors: Jiacheng Ye; Yuliang Li; Yue Lu; Yongzheng Wang; Bin Liu; Haiyang Chang
• Keywords: Left subclavian artery; Fenestration; Aortic repair; Chimney (locomotive); Thoracic aorta

To investigate the safety and efficacy of homemade fenestration chimney techniques for left subclavian artery (LSA) revascularization during zone 2 thoracic endovascular aortic repair (TEVAR).From February 2017 to 2021, 41 patients undergoing technique (group A) 42 B) preserve LSA TEVAR were enrolled in present study. The procedure was indicated dissections with unsuitable proximal landing refractory pain hypertension, rupture malperfusion, high-risk radiographic features. baseline characteristics, peri-procedure, follow-up clinical data recorded analyzed. primary endpoint success, secondary endpoints rupture-free survival, patency, complications. Aortic remodeling, defined as partial complete thrombosis false lumen, also analyzed.Technical success achieved 38 groups A B, respectively. Four intervention-related deaths confirmed, two each group. Immediate post-procedural endoleaks detected three group No other major complications found either group, except one retrograde type dissection A. During follow-up, initial rates 90.24% 92.86% mid-term 87.5% 90% A, both them 92.68% B. Rupture-free survival patency not significantly different between groups. incidence aorta distal stent graft 67.65% 61.11% respectively.Apart from lower rate technique, physician-modified are available promote favorable remodeling.