Treatment of thoraco-abdominal aortic disease with fenestrated stent-graft or branch stent-graft technique guided by 3D printing

Abstract

Objective To summarize the experience and effect of applying 3D printing to repair thoraco-abdominal aortic disease with fenestrated stent-graft or branch stent-graft technique. Methods From Oct 2017 to Sep 2018,22 patients with thoracic and abdominal aortic diseases, including aortic arterial dissection (9 patients) and aortic aneurysm (13 patients) were admitted. There were 19 males and 3 females, with mean age of (60 ± 13) years. Before the surgery 3D printing model guide plate was made according to CT, and then the pre-fenestrated stent-graft technique, branch stent-graft technique and other techniques were adopted in the surgery to perform endovascular repair. Results All of the operations were completed in one stage without open surgery. The average operation time was (5.67 ± 1.23) hours without renal insufficiency and paraplegia, 1 branch artery was lost during operation (1.4%) and 1 patient died (4.5%) . Conclusion The application of 3D printing in the treatment of thoraco-abdominal aortic disease involving branches is more accurate than traditional measurement and localization. It had a safe and reliable short-term result. Key words: Aortic diseases; Stents; 3D printing