Concern about indications for endovascular treatment of infra-renal abdominal aortic aneurysm        WANG Zhong-gao, HU Zhi-wei. Vascular Institute and Xuan Wu Hospital, Capital Medical University, Beijing100053, China
Corresponding author：WANG Zhong-gao，E-mail：zhonggaowang@yahoo.com
Abstract    Unlike the thoracoabdominal aneurysm or supra-renal abdominal aortic aneurysm, in which so long as there is a reliable and safe endografting remedy emerging, it will be greatly appreciated and immediately applied, since surgery for them is major with high operative risk. In contrast, surgical resection and reconstruction for the infra-renal aortic aneurysm (IRAAA) is a well-defined surgery with durability. The emergence of the endoluminal technique to treat IRAAA is fantastic for those with elder, poor general statue, co-morbidity, etc. However, it has disadvantage of endoleak, durability, requiring long-term surveillance, and more request for postoperative corrections. Thus it is not necessary to insist on applying endograf to deal those with anatomy difficulty (example giving) and to lower criteria to treat those with small size aneurysms, even dilatation of the aorta. For relatively young, healthy and physical labor taking person, which method is better fixed, seems worth considering.