Endovascular versus Open Repair of Abdominal Aortic Aneurysm

Few data are available on the long-term outcome of endovascular repair of abdominal aortic aneurysm as compared with open repair.

From 1999 through 2004 at 37 hospitals in the United Kingdom, we randomly assigned 1252 patients with large abdominal aortic aneurysms (> or = 5.5 cm in diameter) to undergo either endovascular or open repair; 626 patients were assigned to each group. Patients were followed for rates of death, graft-related complications, reinterventions, and resource use until the end of 2009. Logistic regression and Cox regression were used to compare outcomes in the two groups.