ShOrt neCK AAA RAndomized Trial - ESAR and FEVAR: SOCRATES

Inclusion Criteria: * Subject is \>18 years old * Subject is scheduled for primary treatment of the abdominal aortic aneurysm with a non-aneurysmal infrarenal aortic sealing zone proximal to the aneurysm that is sufficiently healthy for a proximal neck length that is at least 4mm and not more than15 mm and has a circumferential minimum sealing zone length of 8 mm * Subject is not a candidate for safe, effective and durable standard EVAR due to challenging anatomical criteria as confirmed by the Core Lab screening * Subject is able and willing to comply with the protocol and to adhere to the follow-up requirements. * Subject has provided written informed consent CT Angiographic Inclusion Criteria * Subject meets the other anatomical requirements according to the locally applicable Endurant II/IIs stent graft system, Heli-FX EndoAnchor system, Terumo Fenestrated Anaconda (available in EU only) and/or Cook Zenith Fenestrated Graft Instructions for Use * Proximal neck length of the aorta within 4-15mm and a minimum circumferential sealing zone of 8mm * Aortic neck diameter from 19 to 31mm * Infrarenal neck angulation ≤45° Exclusion Criteria: * Subject is participating in a concurrent study which may confound study results * Subject has a life expectancy \<2 year * Subject is female of childbearing potential in whom pregnancy cannot be excluded * Subject with eGFR \<30 mL/min/m2 (KDOQI classification - exclude class IV and above) and or on dialysis * Subject with a MI or CVA within 3 months prior to index procedure * Subject with known Connective Tissue Disease * Subject has a known hypersensitivity or contraindication to anticoagulants, antiplatelets, or contrast media, which is not amenable to post-treatment * Subject who has undergone prior endovascular or open surgical treatment for abdominal aortic aneurysm * Subject requires emergent aneurysm treatment, for example, trauma or rupture * Subject has a known hypersensitivity or allergies to study device implant material * Subject has an aneurysm that is: * Suprarenal, pararenal, or thoracoabdominal * Mycotic * Inflammatory * Pseudoaneurysm * Subject is presenting with thrombus or calcification of the proximal aneurysm neck: circumferential \>50% * Pre-op stenosis of the renal arteries \> 50% * Subject has active infection or history of COVID-19. History of COVID-19 is defined as availability of positive COVID-19 test with sequelae or hospitalization for treatment of COVID-19.