Abstract

Interleukin-6 (IL-6) is associated with abdominal aortic aneurysm (AAA) development and is an independent risk factor for cardiovascular mortality. We tested the hypothesis that aneurysm repair reduces circulating IL-6 by comparing concentrations in patients with large AAA awaiting repair ( n = 50) with patients having undergone open ( n = 34) or endovascular ( n = 66) repair. Only open repair was associated with a significant reduction in IL-6 ( p = 0.025). These results suggest that AAAs remain biologically active following endovascular repair. Aneurysm-derived IL-6 may have serious implications for cardiovascular health, and attention should be directed to modifying cardiovascular risk factors in these patients, even after successful aneurysm repair.

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