Endoleaks from endoluminal grafts for abdominal aortic aneurysms may be classified based on the nature and features of the leak.
|
Group
|
Basis for Leakage
|
Type
|
|
graft-related
|
inadequate seals at the proximal or distal implantation zones
|
I
|
|
non-graft-related
|
retrograde flow into the aneurysm sac via patent arteries, often fed by collateral flow from arteries
|
II
|
|
graft-related
|
graft component disconnection, or fabric tears or disintegration
|
III
|
|
graft-related
|
graft porosity
|
IV
|
