Objective: To compare the perioperative efficacy of endovascular and open repair for AAA by means of systematic review. Methods: The literature of randomized controlled trials (RCTs) comparing endovascular and open repair for AAA was collected by searching the national and international databases. Meta-analysis was performed by using Revman 5.1 software. Results: Seven randomized controlled trials with 8 reports were included, which involved a total of 2?807 patients, of whom 1 433 cases underwent endovascular repair (endovascular group) and 1 374 cases underwent open surgery (open surgery group). Results of Meta-analyses showed that in endovascular group compared with open surgery group, the operative time and volume of intraoperative blood transfusion was reduced (SMD=–0.87, 95% CI=–1.43––0.31, P=0.002; SMD=–0.83, 95% CI=–0.94––0.72, P<0.00001), the length of postoperative stay in ICU and hospital was shortened (MD=–38.11, 95% CI=–48.61––27.61, P<0.00001; MD=–5.11, 95% CI=–6.26––3.95, P<0.00001), and number of 30-day postoperative death was decreased (OR=0.30, 95% CI=0.16–0.55, P=0.0001). Conclusion: Endovascular repair has the perioperative advantages of minimal trauma, reduced blood loss and quick postoperative recovery versus open surgery, but its long term results still need further observation.

Aortic Aneurysm, Abdominal/surg; Endovascular Repair; Meta-Analysis