Objective: Evaluation of four-year results of AAA treatment by Ella stent grafts with regard to safety and effectivity in relation to morphology of the aneurysm. Materials and methods: From a group of 103 patients with AAA, where endovascular treatment was considered, 70 of them (68 %) were found to be suitable for this type of therapy. The bifurcated type of stentgraft was implanted in 54 patients, the uniiliacal type in 12 patients and only 4 patients were suitable for the tubular type of stent graft. Control angiography was performed immediately before discharge. CT and US controls were performed 3, 6 and 12 months after implantation, later every 12 months. Results: Primary technical success was achieved in 61 of the 70 patients (87.1 %). Primary endoleak was recorded in 9 patients; proximal perigraft endoleak in 5 patients, intersegmental in 1 and distal perigraft endoleak in 3. Endoleak spontaneously disappeared in 1 patient, secondary endovascular intervention, including endovascular conversion, was performed in 4 patients, in two patients surgical banding of the proximal neck was performed. Secondary technical success was 97.1 %. Surgical conversion was indicated in 2 patients (2.9 %). Total average follow-up period was 17.2 months (3 – 49 months). In 8 patients (11.4 %) secondary endoleak was found on CT or US control, in one patient partial thrombosis of the stent graft was found. Conclusion: Treatment of AAA with the Ella stent graft system is effective and safe. Bifurcated stent graft is the most frequently used type. The uniiliacal type of stent graft is used by ourselves only in cases of complicated morphology. The tubular type of stent graft is rarely indicated.

        Key words: aorta – aneurysm – stent – prosthesis - stent graft