Endovascular aneurysm repair (EVAR) is associated with late complications including
the development of endoleaks as major complications. Type II endoleak is the consequence
of collateral retrograde flow from the aortic branches; generally from the lumbar
arteries, inferior mesenteric artery, or middle sacral artery. The method and the
ideal timing for the treatment of endoleaks remain controversial. We are presenting
a case of successful treatment of a large type II endoleak using embolization with
large amount of Onyx copolymer via a percutaneous transfemoral route without any adverse outcome. A significant advantage of Onyx as opposed to glue is that it may be injected for
a long period of time (20–60 minutes) with a lower risk for microcatheter entrapment.
This case report suggests that much higher amount of Onyx can safely be used if needed
to seal large endoleaks without adverse event.
Keywords
endoleak - transcatheter intervention - aortic aneurysm - complications - stenting
- aortic endograft - endovascular aneurysm repair - aneurysmal abdominal aorta
