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In a new report, investigators for EVAR 1, a randomized multicenter trial, provide the first assessment of both acute and long-term outcomes of endovascular versus open surgical repair of abdominal aortic aneurysm (AAA). Of 1252 participants (mean age, 74 years), 91% were men. Aneurysms were at least 5.5 centimeters in diameter (mean diameter at baseline, 6.4 cm).
Thirty-day mortality was significantly lower in the endovascular-repair group (1.8%) than in the surgical-repair group (4.3%; odds ratio, 0.39). However, at a median follow-up of 6 years, neither overall nor aneurysm-related mortality differed between the two groups because of an increase in aneurysm-related deaths after 4 years in the endovascular-repair group. The findings were c…