title: Modified Sandwich-graft Technique Employing Aorfix and Viabahn Stent-grafts to Preserve Hypogastric Flow in Cases of Complex Aortoiliac and Isolated Common Iliac Artery Aneurysms Including the Internal Iliac Artery Ostium.
abstract: OBJECTIVE
  The aim was to assess the early and mid-term safety and clinical outcomes of a modified sandwich-graft technique (MSGT) that employed the Aorfix and Viabahn stent-grafts to preserve hypogastric flow in cases of complex aortoiliac and isolated common iliac artery (CIA) aneurysms including internal iliac artery (IIA) ostium who were not suitable for an iliac branch device (IBD).
  
  
  METHODS
  A review of prospective collected data of all consecutive cases of treatment of complex aortoiliac or isolated CIA aneurysms including IIA ostium using the MSGT to preserve the hypogastric flow in three European centres between April 1, 2010, and December 31, 2013, was performed. All patients included were unfit for open repair and not suitable for an IBD.
  
  
  RESULTS
  During the study period, 21 patients met the study criteria and had 25 MSGTs. The mean follow-up duration was 17.2 months. The technical success rate was 100%, with no perioperative mortality and stent-graft or MSGT-treated IIA occlusions. There were two cases with Type Ib endoleaks and one Type III endoleaks intraoperatively that were successfully managed. There was also no reported early and late pelvic ischaemia. The primary patency rate was 90.5%, and two cases of MGST treated IIA occlusions with no reported symptoms of pelvic ischaemia during follow-up.
  
  
  CONCLUSIONS
  MSGT was a safe and feasible strategy to preserve hypogastric flow in cases of complex aortoiliac and isolated CIA aneurysms including IIA ostium and who were not suitable for IBD, with encouraging early and mid-term outcomes.
authors.affiliation: Department of Vascular Surgery, Northwick Park Hospital, Harrow, UK.
authors.forename: C S
authors.initials: CS
authors.lastname: Lim
authors.affiliation: Department of Radiology, Northwick Park Hospital, Harrow, UK.
authors.forename: Y
authors.initials: Y
authors.lastname: Naji
authors.affiliation: Department of Vascular Surgery, Northwick Park Hospital, Harrow, UK.
authors.forename: S T
authors.initials: ST
authors.lastname: Hussain
authors.affiliation: Clinic of Vascular Surgery, Institute of Haematology and Transfusion Medicine, Warsaw, Poland.
authors.forename: E
authors.initials: E
authors.lastname: Pleban
authors.affiliation: Clinic of Vascular Surgery, Institute of Haematology and Transfusion Medicine, Warsaw, Poland.
authors.forename: A
authors.initials: A
authors.lastname: Wiszniewski
authors.affiliation: Department of Vascular Surgery, Northwick Park Hospital, Harrow, UK.
authors.forename: S
authors.initials: S
authors.lastname: Onida
authors.affiliation: Angiology and Vascular Surgery Department, Complexo Hospitalario Universitario de Ourense, Ourense, Spain. Electronic address: nmarochena@gmail.com.
authors.forename: N J
authors.initials: NJ
authors.lastname: Mosquera Arochena
authors.affiliation: Clinic of Vascular Surgery, Institute of Haematology and Transfusion Medicine, Warsaw, Poland.
authors.forename: P
authors.initials: P
authors.lastname: Szopinski
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001012:Aorta, Abdominal / Q000000981:diagnostic imaging / Q000503:physiopathology; D017544:Aortic Aneurysm, Abdominal / Q000150:complications / Q000000981:diagnostic imaging / Q000601:surgery*; D057510:Endovascular Procedures / Q000379:methods*; D005240:Feasibility Studies; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D017543:Iliac Aneurysm / Q000150:complications / Q000000981:diagnostic imaging / Q000601:surgery*; D007083:Iliac Artery / Q000000981:diagnostic imaging / Q000503:physiopathology; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D011474:Prosthesis Design; D012039:Regional Blood Flow / Q000502:physiology*; D015607:Stents; D013997:Time Factors; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome; D058017:Vascular Grafting / Q000379:methods*; D014654:Vascular Patency / Q000502:physiology
keywords: Aortoiliac aneurysm; EVAR; Iliac aneurysm; Internal iliac artery; Pelvic ischaemia; Sandwich-graft technique