Key result
Volumetric analysis of abdominal aortic aneurysms may assess changes and predict successful endoluminal exclusion after EVAR more accurately than diameter, though its clinical impact remains unclear.
Why the study?
There is ongoing debate regarding whether maximum diameter alone suffices to assess abdominal aortic aneurysm natural history, prompting a review of the role of aortic volume in untreated and EVAR-treated aneurysms.
Does volumetric analysis provide better assessment of AAA natural history and post-EVAR outcomes compared to maximum diameter?
Does volumetric analysis provide better assessment of AAA natural history and post-EVAR outcomes compared to maximum diameter?
Volumetric analysis may serve as a useful supplementary measure to maximum diameter for evaluating AAA progression and post-EVAR outcomes, though standardized measurement criteria are needed.
AAA volume may supplement diameter for natural history assessment; leaves open prospective validation before guiding surveillance or intervention.
There has been a debate about whether maximum diameter can be solely used to assess the natural history of abdominal aortic aneurysm. The aim of the present review is to collect all the available evidence on the role of abdominal aortic aneurysm (AAA) volume in the natural history of AAAs, including small untreated AAAs and AAAs treated by EVAR. The current literature appears to reinforce the role of volume as a supplementary measure for evaluating the natural history of AAA, in both intact AAAs and after EVAR. The clinical impact of AAA volume measurements remains unclear. Several studies show that volumetric analysis can assess changes in AAAs and predict successful endoluminal exclusion after EVAR more accurately than diameter. However, most studies lack strict standardized measurement criteria and well-defined outcome definitions. It remains unclear whether volumetry could replace diameter assessment in defining the risk of rupture of AAAs and identifying clinically relevant sac growth.
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Kouvelos et al. (2023) conducted a review in Abdominal aortic aneurysm. Volumetric analysis vs. Diameter assessment was evaluated on Natural history of AAAs and successful endoluminal exclusion after EVAR. Volumetric analysis of abdominal aortic aneurysms may assess changes and predict successful endoluminal exclusion after EVAR more accurately than diameter, though its clinical impact remains unclear.
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