Long-Term Outcome of Intact Abdominal Aortic Aneurysm After Endovascular or Open Repair

Abstract

Objective: Endovascular aortic aneurysm repair (EVAR) has been established as a standard treatment option for intact abdominal aortic aneurysm (iAAA) and gained importance due to a lower perioperative mortality than open repair (OAR). However, whether this survival advantage can be maintained or if OAR is beneficial in terms of long-term complications and reinterventions remains questionable. Design: In this retrospective cohort study data from patients undergoing elective EVAR or OAR for iAAAs in the years 2010-2016 was analyzed. The patients were followed through 2018. Methods: In the propensity score matched cohorts the perioperative and long-term outcomes of the patients were assessed. We identified 20 683 patients undergoing elective iAAA repair (76.4% EVAR). The propensity matched cohorts included 4886 pairs of patients. Results: The perioperative mortality was 1.9% for EVAR and 5.9% for OAR (P =