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Visceral artery aneurysms 

Visceral artery aneurysms
Chapter:
Visceral artery aneurysms
Author(s):

Alistair M. Millen

and Srinivasa Rao Vallabhaneni

DOI:
10.1093/med/9780199658220.003.0066
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date: 19 September 2019

Visceral artery aneurysms (VAA) are a rare, potentially life-threatening vascular condition. VAA prevalence is 1%, and up to a quarter rupture with a mortality ranging from 25 to 75%. The aetiologies of VAA are incompletely understood, and there are many and varied causes. Computed tomography angiography is the preferred imaging technique for diagnosing VAA. Indications for treatment include aneurysms > 2 cm in diameter, those that exhibit rapid growth or symptoms, and all pseudoaneurysms of the visceral arteries. Due to the lack of robust clinical data, these indications arise from expert opinion and limited case series, so all patients should be considered individually. Open surgical repair has been well described with varied approaches, depending on the aneurysm’s location. Contemporary endovascular techniques have been employed with high technical success rates. However, it may not be technically possible to perform endovascular repair, so open surgery remains a relevant and important treatment.

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