title: Deformation of self-expanding stent-grafts complicating endovascular peripheral aneurysm repair.
abstract: OBJECTIVE
  To demonstrate the deformation of self-expandable stents after endovascular repair of peripheral aneurysms.
  
  
  RESULTS
  The Corvita Endoluminal Graft was used to treat a traumatic false aneurysm of the right subclavian artery and a common iliac artery aneurysm in 2 patients. In the subclavian case, the stent-graft showed a "cigar-shaped" deformation with hemodynamically significant stenoses at the proximal and distal ends at 3 months. In the second case, the same type of deformity was noted only 1 day after implantation. Two months later, the stent-graft occluded, necessitating surgical repair.
  
  
  CONCLUSIONS
  Both cases demonstrate the possibility of stent deformation of self-expanding stent-grafts implanted at arterial sites not subject to external compression.
authors.affiliation: Department of Vascular Surgery, University Hospital Utrecht, The Netherlands.
authors.forename: M E
authors.initials: ME
authors.lastname: Sitsen
authors.forename: G H
authors.initials: GH
authors.lastname: Ho
authors.forename: J D
authors.initials: JD
authors.lastname: Blankensteijn
mesh_terms: D000328:Adult; D017541:Aneurysm, False / Q000175:diagnosis / Q000503:physiopathology / Q000601:surgery*; D000792:Angiography; D001783:Blood Flow Velocity; D001807:Blood Vessel Prosthesis; D019917:Blood Vessel Prosthesis Implantation / Q000295:instrumentation*; D006801:Humans; D017543:Iliac Aneurysm / Q000175:diagnosis / Q000503:physiopathology / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D011475:Prosthesis Failure; D012086:Reoperation; D015607:Stents; D013348:Subclavian Artery; D014057:Tomography, X-Ray Computed; D018616:Ultrasonography, Doppler, Duplex