Stent-grafts: current critical practice

How are stent Grafts used In your dialysis access Practice ?

The role of bare-metal stents (BMS) is limited to flow-limiting dissections, major vascular ruptures, and vascular recoil when treating occlusions that are mostly central. I am somewhat limited by funding within a single-payer system that restricts reimbursement without proper evidence. Even with these indications, we are now using stent grafts for vascular ruptures. For ruptures, I prefer sten...

Chimney Grafts in Aortic Stent Grafting: Hazardous or Useful Technique? Systematic Review of Current Data.

BACKGROUND The chimney graft (CG) technique was introduced to rescue accidentally covered aortic branches during aortic endovascular repair. It extends the sealing zone. There is concern about "gutter" type I endoleak (EL-I) and about the durability of CGs. The aim of the present report was to analyze the rapidly increasing existing data. METHODS A search was performed (PRISMA criteria) for a...

Suitability of Endovascular Repair with Current Stent Grafts for Abdominal Aortic Aneurysm in Korean Patients

Suitability rate of endovascular aneurysm repair (EVAR) and the anatomic features causing unsuitability have not been well determined in Asian patients who have abdominal aortic aneurysm (AAA). In a single Korean center, a total of 191 patients with abdominal aortic aneurysm (maximal diameter ≥ 4 cm) were identified. Aortoiliac morphologic characteristics in contrast-enhanced computed tomograph...

Computational mechanics of Nitinol stent grafts.

A finite element analysis of tubular, diamond-shaped stent grafts under representative cyclic loading conditions for abdominal aortic aneurysm (AAA) repair is presented. Commercial software was employed to study the mechanical behavior and fatigue performance of different materials found in commercially available stent-graft systems. Specifically, the effects of crimping, deployment, and cyclic...

Computational modeling of contemporary stent-grafts