title: Development of off-the-shelf stent grafts for juxtarenal abdominal aortic aneurysms.
abstract: BACKGROUND
  The use of EVAR for more complex aneurysm anatomy has become more widespread over the past decade. Fenestrated and branched stent grafts for the visceral and iliac segment show promising short- and midterm outcome and these procedures have become routine in many vascular centers. However, at present, such grafts are customized to the individual patient and planning and manufacturing leads to significant treatment delay subjecting the patients to the risk of rupture during the waiting period. The purpose of this report is to describe the first experience in treating juxta/suprarenal aneurysms using the first version of a new fenestrated stent graft
  
  
  METHODS
  A fenestrated device was designed with two renal fenestrations, an SMA fenestration and a scallop for the coeliac artery. The renal arteries were designed with an inner 6 mm fenestration and an outer 15 mm diameter creating a dome to allow renal artery catheterization for a range of renal artery distribution. Seven patients with complex visceral artery anatomy were treated with customized stent grafts containing these pivot renal fenestrations.
  
  
  RESULTS
  Technical success was uniform with 100% target vessel catheterization and 0% 30-day mortality. In one case, the graft was displaced slightly during delivery resulting in a renal artery stent occlusion at 2 months postoperatively.
  
  
  CONCLUSIONS
  The development of a modified fenestrated device has shown this to be feasible and it has the potential to reduce the need for extensive preoperative graft customization and establishing a true off the shelf platform for juxta- and suprarenal AAA.
authors.affiliation: Vascular Center Malmö-Lund, Skåne University Hospital, Sweden. timothyresch@gmail.com
authors.forename: T A
authors.initials: TA
authors.lastname: Resch
authors.forename: N V
authors.initials: NV
authors.lastname: Dias
authors.forename: J
authors.initials: J
authors.lastname: Sobocinski
authors.forename: B
authors.initials: B
authors.lastname: Sonesson
authors.forename: B
authors.initials: B
authors.lastname: Roeder
authors.forename: S
authors.initials: S
authors.lastname: Haulon
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D017544:Aortic Aneurysm, Abdominal / Q000000981:diagnostic imaging / Q000601:surgery*; D001027:Aortography / Q000379:methods; D001807:Blood Vessel Prosthesis; D019917:Blood Vessel Prosthesis Implantation / Q000009:adverse effects / Q000295:instrumentation*; D057510:Endovascular Procedures / Q000009:adverse effects / Q000295:instrumentation*; D005240:Feasibility Studies; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011474:Prosthesis Design; D012077:Renal Artery / Q000000981:diagnostic imaging / Q000601:surgery*; D015607:Stents; D013997:Time Factors; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome