Outcomes of type II endoleaks after endovascular abdominal aortic aneurysm (AAA) repair: a single-center, retrospective study

Abstract

Purpose: This study aims to determine incidence and outcomes of type II endoleaks (T2E) after endovascular abdominal aortic aneurysm repair (EVAR).

Methods: A retrospective review of procedural angiograms, computed tomography angiography, and medical records of 202 patients who underwent EVAR with the Gore Excluder stent graft was performed to determine presence and outcomes of T2E.

Results: Median follow-up time for 163 patients meeting inclusion criteria [136 males (83%)] was 24.7 months (range=0.5-85.2 months). T2E occurred in 66/163 patients (40.5%). Aneurysm sac size was unchanged in 32/66 patients (48.5%), decreased in 22/66 (33.3%), and increased in 12/66 (18.2%). No aneurysm ruptures, conversion to open repair, or aneurysm-related deaths occurred.

Conclusion: T2E are a common occurrence after EVAR, often with benign outcome. However, routine surveillance should be performed, particularly in patients with persistent endoleak or sac growth.

Keywords: Abdominal; Aortic aneurysm; Aortic stent grafts; Endoleak; Endovascular procedure.