Abstract
Type II endoleaks (T2E), commonly identified after EVAR, are associated with late endograft failure and secondary rupture. Quantity and size of aortic aneurysm sac outflow vessels (AASOV), namely the inferior mesenteric, lumbar, and accessory renal arteries, have been implicated as known risk factors for persistent T2E. Given technical difficulties associated with post-EVAR embolization, prophylactic coil embolization of AASOV-related T2E has been advocated to prevent retrograde T2E; however, current evidence is limited.
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