title: Improvement of patient eligibility with the use of new generation endografts for the treatment of abdominal aortic aneurysms. A comparison study among currently used endografts and literature review.
abstract: BACKGROUND
  Newer generation devices have attempted to accommodate a wider range of aortoiliac anatomies offering endovascular aneurysm repair (EVAR) to more patients with abdominal aortic aneurysms (AAAs). We aim to examine the anatomic suitability for the ultra-low profile Ovation endograft in our AAA patients and to compare them with other contemporary devices.
  
  
  METHODS
  158 consecutive AAA patients treated with EVAR or open surgical repair (OSR) were tested for EVAR eligibility according to the most commonly used endografts' instructions for use.
  
  
  RESULTS
  106 patients underwent EVAR and 52 OSR. EVAR eligibility was higher for the Ovation system (72%) compared to the rest of the devices (Incraft: 63%, Nellix: 60%, Endurant-II: 59%, Excluder: 55%, Zenith-Flex: 36%, Aorfix: 35%, P-value<0.001). Non-suitable proximal neck anatomy followed by access vessel inadequacy were the primary reasons for ineligibility.
  
  
  CONCLUSIONS
  New generation aortic endografts with innovative proximal sealing mechanisms and ultra-low profile delivery systems are increasing patient eligibility for EVAR.
authors.affiliation: a Vascular Surgery Unit, Department of Cardiothoracic and Vascular Surgery , University of Crete Medical School , Heraklion , Greece.
authors.forename: Nikolaos
authors.initials: N
authors.lastname: Kontopodis
authors.affiliation: a Vascular Surgery Unit, Department of Cardiothoracic and Vascular Surgery , University of Crete Medical School , Heraklion , Greece.
authors.forename: George
authors.initials: G
authors.lastname: Papadopoulos
authors.affiliation: b Interventional Radiology Unit, Radiology Department , University of Crete Medical School , Heraklion , Greece.
authors.forename: Nikolaos
authors.initials: N
authors.lastname: Galanakis
authors.affiliation: b Interventional Radiology Unit, Radiology Department , University of Crete Medical School , Heraklion , Greece.
authors.forename: Dimitrios
authors.initials: D
authors.lastname: Tsetis
authors.affiliation: a Vascular Surgery Unit, Department of Cardiothoracic and Vascular Surgery , University of Crete Medical School , Heraklion , Greece.
authors.forename: Christos V
authors.initials: CV
authors.lastname: Ioannou
mesh_terms: D017544:Aortic Aneurysm, Abdominal / Q000473:pathology / Q000601:surgery*; D001807:Blood Vessel Prosthesis; D057510:Endovascular Procedures / Q000295:instrumentation / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male
keywords: Endovascular aneurysm repair; aortic neck angulation; endograft sizing; endoleak; seal zone