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  • Title: Finnish multicenter study on the midterm results of use of the Zenith stent-graft in the treatment of an abdominal aortic aneurysm.
    Author: Nevala T, Biancari F, Manninen H, Aho PS, Matsi P, Mäkinen K, Roth WD, Ylönen K, Lepäntalo M, Perälä J.
    Journal: J Vasc Interv Radiol; 2009 Apr; 20(4):448-54. PubMed ID: 19216093.
    Abstract:
    PURPOSE: To assess the midterm results of endovascular repair of abdominal aneurysm (AAA) with a Zenith stent-graft. MATERIALS AND METHODS: Between January 2001 and December 2005, a Zenith stent-graft was employed for endovascular repair of an infrarenal AAA in 206 patients. The mean patient age (+/-standard deviation) was 73.2 years +/- 7.3. Bifurcated grafts were used in 196 patients (96.1%), aortouni-iliac grafts were used in seven patients (3.4%), and a tubular graft was used in one patient (0.5%). The mean follow-up period was 2.4 years +/- 1.7. RESULTS: The 30-day mortality rate was 2.9%. The overall survival rates at 1-, 3-, and 5-year follow-up were 93.3%, 78.7%, and 64.5%, respectively. None of the patients died of AAA rupture. The primary and assisted technical success rates 1 week after endovascular aneurysm repair were 82.0% and 90.3%. The primary clinical success rates at the 1-, 3-, and 5-year follow-up were 90.6%, 85.6%, and 83.5%. Twenty-seven patients (13.1%) underwent a secondary intervention during the study period. CONCLUSIONS: An 83% rate of freedom from repeat vascular intervention over a period of 5 years as well as an absence of structural failures or aneurysm ruptures demonstrates that a Zenith stent-graft is associated with good midterm results.
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