Effectiveness of endovascular repair with fenestration stent and branch stent assisted by 3D printing in treating thoracoabdominal aortic aneurysm involving visceral artery area
- VernacularTitle:3D 打印辅助开窗支架及分支支架技术治疗累及内脏动脉区胸腹主动脉瘤的效果分析
- Author:
Yan SUN
1
;
Yutao WANG
2
;
Shiyi ZHANG
1
;
Dianning DONG
1
;
Xuejun WU
1
Author Information
1. Department of Vascular Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, P.R.China
2. Department of Peripheral Vascular Disease, Jinan Municipal Hospital of Traditional Chinese Medicine, Jinan, 250012, P.R.China
- Publication Type:Journal Article
- Keywords:
3D printing;
endovascular repair;
aortic aneurysm;
fenestration stent;
branch stent
- From:
Chinese Journal of Clinical Thoracic and Cardiovascular Surgery
2022;29(01):90-94
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the clinical value of in vitro fenestration and branch stent repair in the treatment of thoracoabdominal aortic aneurysm in visceral artery area assisted by 3D printing. Methods The clinical data of 7 patients with thoracoabdominal aortic aneurysm involving visceral artery at the Department of Vascular Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University from March 2016 to May 2019 were analyzed retrospectively. There were 5 males and 2 females with an average age of 70.2±3.9 years. Among them 4 patients had near-renal abdominal aortic aneurysm, 3 had thoracic aortic aneurysm, 4 had asymptomatic aneurysm, 2 had acute symptomatic aneurysm and 1 had threatened rupture of aneurysm. According to the preoperative CT measurement and 3D printing model, fenestration technique was used with Cook Zenith thoracic aortic stents, and branch stents were sewed on the main stents in vitro, and then the stents were modified by beam diameter technique for intracavitary treatment. Results All the 7 patients completed the operation successfully, and a total of 18 branch arteries were reconstructed. The success rate of surgical instrument release was 100.0%. The average operation time was 267.0±38.5 min, the average intraoperative blood loss was 361.0±87.4 mL and the average hospital stay was 16.0±4.2 d. Immediate intraoperative angiography showed that the aneurysms were isolated, and the visceral arteries were unobstructed. Till May 2019, there was no death, stent displacement, stent occlusion, ruptured aneurysm or loss of visceral artery branches. Conclusion 3D printing technology can completely copy the shape of human artery, intuitively present the anatomical structure and position of each branch of the artery, so that the fenestration technique is more accurate and the treatment scheme is more optimized.
