948 Visceral Artery Aneurysms- A Single Centre Experience Over 6 Years

The incidence of visceral artery aneurysms (VAA) varies from 0.01-0.1%. They are significant with a mortality risk of up to 75% if ruptured. Given there are no national guidelines we decided to conduct this study to assess the management of VAA in our trust and recommend local guidelines. Method We retrospectively identified patients who had a detected VAA between April 2014 and April 2020. Medical records and relevant imaging were reviewed in detail. MDT outcomes and subsequent mortalities noted. Results We identified 62 VAA in 59 patients (23 male), median age 65 years, and mean diameter 18.1 mm. 95 % were detected on CT, the indication was mostly malignancy. MDT outcomes were to continue surveillance for 43 patients with yearly scans, 5 patients had primary surgical repair, 7 patients had endovascular interventions, 1 patient had primary endovascular intervention that failed and required surgical intervention. 7 patients were discharged from follow up due to age and size (12 mm) or VAA completely thrombosed. Conclusions In our unit decisions to intervene were based on size > 20mm, rapid increase in size on surveillance, the presence of portal hypertension or possibly the patients’ young age. There were no mortalities linked to VAA.