Endovascular Treatment of Aortic Aneurysms: the Role of the Multilayer Stent

Aim: The purpose of this study was to evaluate the safety and effectiveness of the multilayer flow modulator and its delivery system for totally endovascular repair of aortic aneurysms in high risk patients and to demonstrate deployment success and preservation of all side-branch vessels. Methods and Results: We report on 22 cases (mean age 67 + 5 years all males) with thoracic, thoracoabdominal and abdominal aneurysm considered high risk patients for surgical treatment. In all patients, treated with a multilayer stent, there were side branches arising from the aneurysm sac and maintained patency after the procedure. Two patients died after the procedure: 1 patient who developed a stroke two weeks post procedure and 1 patient who sustained a myocardial infarction two days post-procedurally. No vascular or systematic complications were observed in the other 20 patients in the short and long term follow-up. Conclusions: Our preliminary results indicate that the use of the multilayer stent is feasible and seems to be safe for the management of aortic aneurysm with side branches.