Key result
Pre-operative aneurysm diameter greater than 6 cm did not significantly increase postoperative mortality rates compared to diameters of 6 cm or less after endovascular aneurysm repair.
Why the study?
Does pre-operative aneurysm diameter affect mortality rates after endovascular aneurysm repair in patients with infrarenal aortic aneurysms?
Cohort (n=56)
Yes
Does pre-operative aneurysm diameter affect mortality rates after endovascular aneurysm repair in patients with infrarenal aortic aneurysms?
Absolute Event Rate: 11.5% vs 10%
p-value: p=>0.05
Pre-operative aneurysm diameter does not significantly affect postoperative mortality rates after EVAR, whereas increased EuroSCORE and endoleak development are associated with higher long-term mortality.
Larger aneurysms should not preclude EVAR based on size alone; observational data leaves open prospective validation of thresholds.
OBJECTIVE: The objective of this study was to investigate the effect of anatomical characteristics on mortality rates after endovascular aneurysm repair (EVAR). METHODS: We investigated 56 EVAR procedures for infrarenal aortic aneurysms performed between January 2010 and December 2013, and the data were supplemented with a prospective review. The patients were divided into two groups according to the diameter of the aneurysm. Group I (n = 30): patients with aneurysm diameters less than 6 cm, group II (n = 26): patients with aneurysm diameters larger than 6 cm. The pre-operative anatomical data of the aneurysms were noted and the groups were compared with regard to postoperative results. RESULTS: There were no correlations between diameter of aneurysm (p > 0.05), aneurysm neck angle (p > 0.05) and mortality rate. The long-term mortality rate was found to be high in patients in whom an endoleak occurred. CONCLUSION: We found that aneurysm diameter did not have an effect on postoperative mortality rates. An increased EuroSCORE value and the development of endoleaks had an effect on long-term mortality rates.
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Ay et al. (2016) conducted a cohort in Infrarenal aortic aneurysms (n=56). Aneurysm diameter > 6 cm vs. Aneurysm diameter ≤ 6 cm was evaluated on Mortality rate (p=>0.05). Pre-operative aneurysm diameter greater than 6 cm did not significantly increase postoperative mortality rates compared to diameters of 6 cm or less after endovascular aneurysm repair.
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