Late Type II Endoleaks After Endovascular Aneurysm Repair Require Intervention More Frequently Than Early Type II Endoleaks

Less than one-third (29%) of T2ELs that develop after 1 year will resolve spontaneously and about half (55%) will require intervention for sac growth or rupture. T2ELs that develop >1 year after EVAR should be followed up with a more frequent surveillance protocol and perhaps with a lower threshold to intervene.