The Influence of 4 or more Patent Lumbar Arteries on Persistent Type II Endoleak and Sac Expansion after Endovascular Aneurysm Repair

The number of patent LAs is associated as a significant risk factor with the development of persistent type II endoleaks and sac enlargement after EVAR. Four or more patent LAs should be recognized as the group having an elevated risk of developing late sac enlargement after EVAR.