Abstract:Abstract: Objective To study the advantage of efficacy of endovascular aneurysm repair in the treatment of abdominal aortic aneurysm with middle or high risk. Methods A total of 62 patients who were admitted into our hospital from March 2012 to May 2015 were enrolled and divided into traditional open repair surgery group (OSR group, 29 cases) and endovascular aneurysm repair group (EVAR group, 33 cases) according to the type of operation. Preoperative demographic characteristics, variables related to the operation and the condition of postoperative recovery were compared between the two groups. Results The preoperative data of the patients in the two groups were consistent and comparable (P > 0.05). In surgical treatment, the amount of intraoperative blood transfusion and intraoperative blood loss of the EVAR group were significantly smaller than that of the OSR group (P < 0.05). Compared with the OSR group, fewer patients received general anesthesia in the EVAR group, demonstrating statistically significant difference (P < 0.05). The costs of the EVSR patients were significantly higher than those of the OSR group, demonstrates statistically difference (P < 0.05). In the process of follow-up, the rates of postoperative complications related to the operation in the EVAR group were significantly higher than those in the the OSR group (P < 0.05). The postoperative mortality and the rates of other major complications were similar between these two group (P > 0.05). Conclusions The short-term surgical effect of the EVAR for the middle or high risk abdominal aortic aneurysm patients is superior to that of traditional open surgery. EVAR may be helpful to the minimally invasive treatments for these patients, but the long-term curative effect remains to be further investigated.