Purpose: To report an unusual late type Ia endoleak after endovascular aneurysm repair with a low-profile sealing ring endograft and its treatment with transcaval sac embolization.
Case report: An 82-year-old man was treated for a 47-mm abdominal aortic aneurysm associated with a 35-mm left common iliac artery aneurysm using an Ovation Abdominal Stent Graft System. Correct endograft placement was documented at 3-month follow-up. Seven months after the repair, the patient was admitted to the emergency department with acute left inguinal pain. Computed tomography showed aneurysm sac enlargement (57 mm) and a contained rupture of the left common iliac artery due to a late type Ia endoleak. The endoleak was embolized with coils and thrombin via a transcaval approach. Sac shrinkage without signs of endoleak was observed at 12-month follow-up.
Conclusion: In this case, late endograft failure with sealing ring collapse created an inflow channel into the aneurysm sac, with massive type Ia endoleak.
Keywords: abdominal aortic aneurysm; coil embolization; endograft collapse; endoleak; endovascular aneurysm repair; rupture; sealing ring; stent-graft.
© The Author(s) 2015.