Type IA endoleak caused by interlocked suprarenal bare-metal stents after endovascular abdominal aortic aneurysm repair with successful endovascular rescue

Abstract

A physically active 90-year-old man underwent endovascular repair of an asymptomatic but enlarging abdominal aortic aneurysm. Postoperative computed tomography demonstrated entanglement of nonadjacent proximal bare-metal stents. This was associated with graft infolding and a type IA endoleak. The patient underwent percutaneous transluminal angioplasty and placement of a Palmaz stent. Subsequent surveillance imaging showed resolution of the type I endoleak >1 year later. This report demonstrates an uncommon cause of stent graft infolding, an already rare complication of endovascular aneurysm repair, and highlights the need to carefully assess the morphologic appearance of the proximal fixation stents after graft deployment.

In Silico Evaluation of Bilinear Elastoplastic Coronary Artery Stents

“…[48] These stents showed the long-term durability for type IA endoleak, [49] the continuous blood flow in aneurysm sac. [50] Palmaz-Schatz stents show high plastic strain and low recoil, which make them ideal strut shape for maximum expansion. [43] In addition, six stents were considered recoiling as compared with six modified models.…”