The purpose of the post-market study is to assess the clinical outcomes, safety, and performance of the Endurant Chimney Graft Technique (Endurant Stent Graft Systems used with a balloon-expandable covered stent graft) for treatment of juxtarenal aortic aneurysms with a short infrarenal neck in a real world setting.

Inclusion Criteria:

• Subject is ≥18 years old
• Subject is scheduled for primary treatment of the juxtarenal aortic aneurysm with a short infrarenal neck (i.e. no revision subjects)
• Subject is able and willing to comply with the protocol and to adhere to the follow-up requirements
• Subject has provided written informed consent
• Subject is an eligible candidate according to the currently available Endurant II/IIs instructions for use for ChEVAR
• Subject has a juxtarenal aortic aneurysm with a short infrarenal neck (definition of juxtarenal aortic aneurysm with a short infrarenal neck will be in accordance with commercially available Endurant II/IIs instructions for use for ChEVAR).

Exclusion Criteria:

• Subject is participating in a concurrent study which may confound study results

• Subject has a life expectancy ≤ 2 year

• Subject has an aneurysm that is:

  • Suprarenal or pararenal
  • Isolated iliofemoral
  • Mycotic
  • Inflammatory
  • Pseudoaneurysm

• Subject requires emergent aneurysm treatment, for example, trauma or rupture

• Subject has previously undergone surgical treatment for abdominal aortic aneurysm

• Subject is a female of childbearing potential in whom pregnancy cannot be excluded

• Subject has a known hypersensitivity or contraindication to anticoagulants, anti-platelets, or contrast media, which is not amenable to pre-treatment

• Subject has a creatinine level >2.0 mg/dl (or >176.8 μmol/L) and/or is on dialysis

• Subject has an active COVID-19 infection or relevant history of COVID-19. Relevant history of COVID-19 is defined as availability of a positive COVID-19 test with sequela or hospitalization for treatment of COVID-19. Subjects with a positive COVID-19 test who were asymptomatic or had mild symptoms should be excluded only if the positive test was less than 6 months prior to enrollment

The study population will be comprised of subjects that meet the indications for the Endurant Chimney Graft Technique for the endovascular treatment of juxtarenal aortic aneurysms with a short infrarenal neck.