In each group, patient's and aneurysm's characteristics, surgical and anesthesia times, cost, transfusion rate, intraoperative complications, hospital stay, mortality and re-intervention rates and survival curves were evaluated. Patients treated by EVAR and by OR were analyzed. The choice between EVAR and OR was based on surgeon's experience, considering patient clinical risk and aneurysm's anatomical features. To analyze EVAR's incorporation impact in the treatment of infra-renal abdominal aortic aneurysms in our institution.Ī retrospective study of the patients with diagnostic of infra-renal AAA treated between December 2001 and December 2013 was performed. On average, it was found that Young's modulus had to be augmented by a factor of 2.Įndovascular aneurysm repair (EVAR) was introduced as a less aggressive treatment of abdominal aortic aneurysms (AAA) for patients ineligible for open repair (OR). Finally, radial pre-load was modeled by increasing Young's modulus of each stent. Variations of displacement between the experimental and numerical results ranged from 1.39% for simple leg bending to 5.93% for three-point body bending. This is important in order to compute the radial force exerted on the vessel after deployment more accurately. In particular, an original method was developed to efficiently account for radial pre-load due to the pre-compression of stents to match the graft dimensions during manufacturing. The deformation modes investigated were: bending as well as axial, transversal and radial compressions. The experimental and numerical forces required to produce SG deformations were compared in a range of in vivo conditions in the present study. Numerical simulation of endovascular repair is becoming a valuable tool in stent-graft (SG) optimization, patient selection and surgical planning. Although the endovascular repair of abdominal aortic aneurysms is a less invasive alternative than classic open surgery, complications such as endoleak and kinking still need to be addressed.

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