Selection and evaluation methods and progress of the distal landing zone of stent grafts for endovascular aortic repair of abdominal aortic aneurysms
10.3760/cma.j.cn112434-20240611-00156
- VernacularTitle:腹主动脉瘤腔内修复术覆膜支架远端锚定区的选择和评估方法及进展
- Author:
Sixuan LI
1
;
Xiang YAN
;
Yiqian CHEN
;
Jingquan CHEN
;
Lei ZHANG
;
Hao ZHANG
Author Information
1. 川北医学院附属医院血管外科，南充 637000
- Publication Type:Journal Article
- From:
Chinese Journal of Thoracic and Cardiovascular Surgery
2025;41(2):121-128
- CountryChina
- Language:Chinese
-
Abstract:
Abdominal aortic aneurysm (AAA) is an extremely dangerous aortic dilating disease, with a high mortality rate once ruptured. With the advancement of imaging techniques such as computed tomography angiography (CTA), the detection rate of this disease has increased correspondingly. Early detection and timely treatment are crucial for reducing mortality and improving patient prognosis. Compared to traditional open surgery, endovascular aortic repair (EVAR) for AAA is minimally invasive, using a stent graft to isolate the aneurysm sac as a whole, preventing arterial blood from entering the sac and further preventing the aneurysm from progressing or rupturing. Due to the characteristics of EVAR, precise preoperative assessment of AAA anatomy is required to develop a surgical plan for selecting the appropriate stent diameter and length. However, current attention on preoperative assessment of EVAR is more focused on the neck landing zone of the aneurysm, its shape, calcification, etc., while there is relatively less attention and lack of uniform standards for the selection and positioning judgment of the distal landing zone of the iliac artery. And, a growing number of studies have shown that improper treatment of the distal landing zone may lead to complications such as type Ⅰb endoleak and restenosis after stent implantation, affecting the prognosis of patients. This article provides a review of the current domestic and international methods and progress in the preoperative assessment of the distal landing zone for EVAR.
