Importance of Follow-up Imaging in the Detection of Delayed Type 2 Endoleaks Despite Complete Aneurysmal Sac Shrinkage

• Main Authors: Gergana T Taneva, Omid Shafe, Giovanni B Torsello, Arne Schwindt, Jamal Moosavi, Parham Sadeghipour, Konstantinos P Donas
• Format: Article
• Language: English
• Published: Radcliffe Medical Media 2019-01-01
• Series: Vascular and Endovascular Review
• Online Access: https://www.verjournal.com/articles/Type2-Endoleaks-Aneurysmal-Sac-Shrinkage

Type 2 endoleaks usually constitute a benign and self-limited phenomenon, which rarely leads to aneurysmal sac expansion. However, in a small subset of patients, a persistent type 2 endoleak might pressurise the aneurysmal sac causing expansion. The authors present two cases with delayed new-onset type 2 endoleak. One occurred after standard endovascular aortic repair and the other after chimney endovascular aortic repair, causing expansion of the aneurysmal sac after a period of complete aneurysmal sac shrinkage. Accordingly, there is a risk of sac re-expansion due to delayed onset endoleaks, independent of the technique, justifying the need for a continuous follow-up despite long-term aneurysmal sac shrinkage.