Prospective Aneurysm Trial: High Angle Aorfix™ Bifurcated Stent Graft

Inclusion Criteria: * Diagnosed abdominal aortic aneurysm \> 4.5 cm in diameter, OR 4.0 cm or larger in diameter if symptomatic (i.e. pain, embolization), OR documented AAA growth of more than 5 mm within the previous 6 months, and/or including extension into common iliac artery (ies), and/or * Iliac aneurysm greater than, or equal to 3.5 cm in maximum diameter. Exclusion Criteria: * Less than 21 years of age, * Life expectancy less than 2 years, * Pregnant, * Religious cultural or other objection to the receipt of blood or blood products, * Unwilling to comply with follow-up schedule, * Unwillingness or inability to provide informed consent to both trial and procedure. * Patients not expected to live more than 2 years from enrollment * Patient has a ruptured aneurysm * Aneurysm extends above renal arteries * Proximal neck of aneurysm has significant loose thrombus associated with it * Patient with an acute or chronic aortic dissection or mycotic aneurysm * Patient has current non-localized infection (may be recruited following remission of the infection) * Patient is allergic to device materials * Patient is allergic to or intolerant of use of contrast media and cannot be exposed to suitable remedial treatment such as steroids and/or benadryl * Patient is clinically and morbidly obese such that imaging would be severely adversely affected * Patient has renal failure (serum creatinine \> 2.5 mg/dL) * Patient has an uncorrectable bleeding abnormality * Patient has unstable angina * Patient is receiving dialysis: * Inflammatory aneurysm * MI in last 6 months * End stage COPD * Patient has connective tissue disease (eg Marfan syndrome, Ehlers-Danlos syndrome) * Significant (\>80%) renal artery stenosis which cannot be readily treated