Feasibility of patchless proximal profundoplasty and common femoral endarterectomy.

Background: Typical repair of common femoral artery (CFA) occlusive disease involves surgical endarterectomy followed by patch closure; however, prosthetic materials may become infected. In addition, in our institution, we have experienced an increased incidence of severe patch-related restenosis. We describe a technique for CFA endarterectomy and patchless proximal profundoplasty, and evaluate its feasibility.

Radiofrequency perforation system for in vivo antegrade fenestration of aortic stent-grafts.

Purpose: To evaluate the ability to create in vivo antegrade fenestrations (IVAF) using a radiofrequency probe in juxtarenal aortic stent-grafts to preserve the patency of renal arteries.

Methods: Modified stent-grafts with an unsupported fenestration area were deployed in the juxtarenal aorta of 2 25-kg dogs. Prior to deployment, both renal arteries were marked with detachable coils that were later removed (dog 1) or with hydrophilic catheters (dog 2).

In vivo antegrade fenestration of abdominal aortic stent-grafts.

Purpose: To examine in a canine model the feasibility of antegrade fenestration of abdominal aortic stent-grafts to preserve the patency of the renal arteries.

Methods: Two large dogs underwent antegrade fenestration of stent-grafts in the perirenal aorta. Before fenestration, bare stents were inserted in both renal arteries as fluoroscopic landmarks.