title: Modification of the sandwich technique to preserve flow in the hypogastric artery after endovascular repair of aortoiliac aneurysmal disease: our initial experience with two cases.
abstract: BACKGROUND
  To describe modification of the sandwich technique to preserve flow in the hypogastric artery after endovascular repair of aortoiliac aneurysmal disease in patients with challenging anatomy.
  
  
  RESULTS
  The sandwich technique has been proposed as an option in patients with aortoiliac aneurysmal disease, in whom standard iliac branch device may not be technically feasible. We feel that even with the sandwich technique, there are issues with adequately treating these aneurysms in patients with short common iliac arteries with critical landing zones and in those with narrow-caliber external iliac arteries. We describe our experience with two patients we operated on using a modification of the originally described technique and their follow-up.
  
  
  CONCLUSIONS
  The modification of the sandwich technique is a promising alternative technique that would be useful in situations where standard endovascular grafts cannot be used in patients with challenging anatomy.
authors.affiliation: Department of Radiology, Singapore General Hospital, Outram Road, Singapore. tiffany_hennedige@hotmail.com
authors.forename: Tiffany
authors.initials: T
authors.lastname: Hennedige
authors.forename: Benjamin
authors.initials: B
authors.lastname: Chua
authors.forename: Manish
authors.initials: M
authors.lastname: Taneja
mesh_terms: D000368:Aged; D001014:Aortic Aneurysm / Q000150:complications / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000601:surgery / Q000628:therapy*; D001027:Aortography / Q000379:methods; D001158:Arteries / Q000503:physiopathology; D001807:Blood Vessel Prosthesis; D019917:Blood Vessel Prosthesis Implantation / Q000295:instrumentation / Q000379:methods*; D004621:Embolization, Therapeutic; D057510:Endovascular Procedures / Q000295:instrumentation; D006801:Humans; D017543:Iliac Aneurysm / Q000150:complications / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000601:surgery / Q000628:therapy*; D008297:Male; D010388:Pelvis / Q000098:blood supply*; D011474:Prosthesis Design; D012039:Regional Blood Flow; D015607:Stents; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome