Key result
Preoperative IMA patency linked to a ~21% higher absolute rate of immediate postoperative endoleaks.
Why the study?
Does preoperative inferior mesenteric artery patency predict IMA-related endoleaks in patients undergoing endovascular repair of abdominal aortic aneurysms?
Cohort (n=76)
Does preoperative inferior mesenteric artery patency predict IMA-related endoleaks in patients undergoing endovascular repair of abdominal aortic aneurysms?
Absolute Event Rate: 24% vs 3%
p-value: p=<.035
Preoperative patency of the inferior mesenteric artery on CT scan predicts an increased risk of IMA-related endoleaks after endovascular abdominal aortic aneurysm repair.
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May inform endoleak risk stratification after EVAR; leaves open whether embolization improves outcomes in patent IMA cases.
Velázquez et al. (2000) conducted a cohort in infrarenal abdominal aortic aneurysms (n=76). Preoperative patent inferior mesenteric artery (IMA) vs. Non-patent IMA was evaluated on IMA-related endoleaks in the immediate postoperative period (p=<.035). Preoperative patency of the inferior mesenteric artery was associated with a higher rate of IMA-related endoleaks in the immediate postoperative period (24% vs 3%, P<.035).
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