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  • Title: Endovascular repair of abdominal aortic aneurysms with a unibody stent-graft: 3-year results of the French Powerlink Multicenter Trial.
    Author: Albertini JN, Lahlou Z, Magnan PE, Branchereau A, French Powerlink Multicenter Trial Investigators.
    Journal: J Endovasc Ther; 2005 Dec; 12(6):629-37. PubMed ID: 16363890.
    Abstract:
    PURPOSE: To report the results of a prospective multicenter study on endovascular repair of abdominal aortic aneurysms (AAA) using the bifurcated Powerlink stent-graft. METHODS: Between June 2000 and July 2001, endovascular AAA repair using the bifurcated Powerlink stent-graft was performed at 14 centers on 64 patients (61 men; mean age 70 years, range 56-90) fit for open repair. All procedures were attended by a proctor. Data were collected prospectively, and surveillance computed tomograms were reviewed by an independent center. RESULTS: Technical success was achieved in all cases. There was no postoperative death. During a minimum 3-year follow-up (mean 40.6 months, range 1-51), there were 3 (4.7%) stent-graft migrations associated with type I endoleaks. Two (3.1%) of these patients were converted to open repair, and 1 had a proximal extension implanted. No aneurysm rupture occurred, and no stent-graft degradation was observed. Six (9.4%) patients had secondary endoleak (3 type I and 3 type II). The limb occlusion rate was 3.1%. Six (9.4%) patients had secondary procedures. At 3 years, 58 (91.0%) patients were available for follow-up (4 deaths, the 2 conversions). There was a significant decrease between preoperative and 3-year mean AAA diameter (54.6+/-7 versus 47.6+/-10 mm, respectively; p<0.001). Aneurysm sac shrinkage was observed in 32 (55.2%) patients. Twenty-five (43.1%) patients had a stable aneurysm sac diameter. CONCLUSIONS: Endovascular repair using the bifurcated Powerlink stent-graft is safe and effective. Unibody design seems to confer advantages in terms of durability. These results need to be confirmed by longer follow-up and larger series.
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