The Vascutek AnacondaTM Stent Graft System Phase II IDE Study

Abdominal aortic aneurysms afflict a large number of patients in the United States and
world-wide. The treatment of this disorder is based upon the concept of aneurysm repair prior
to the presentation of symptoms or rupture. Thus aneurysm repair can be viewed as a
prophylactic procedure embarked upon to prevent the disastrous complications of a ruptured
aneurysm. The decision to treat an aneurysm electively is based upon a risk to benefit ratio.
Treatment options include medical management of co-morbidities (hypertension, pulmonary
disease, etc.) with observation of the aneurysm, open surgical aneurysm repair through a
transabdominal or retroperitoneal approach, and endovascular aneurysm repair. The decision to
intervene is based upon physician judgment. Once the decision to intervene is made, the mode
of the intervention must be chosen. Although open surgical repair is more invasive and has
been noted to have a higher morbidity and mortality(1;2) than most endovascular reports, few
argue with the effectiveness of the procedure. To date, open surgical repair remains the gold
standard of care for the aneurysm patient. Endovascular repair has several beneficial
characteristics in comparison to an open surgical approach. They include the potential for
decreased need for blood transfusions, shorter intensive care unit and total hospital stays,
the lack of endotracheal intubation, to name a few. However, the procedure requires adequate
imaging prior to graft placement and during the follow-up period, in addition to the
availability of a trained team to ensure proper device placement.

Inclusion Criteria:

- Male or female ≥18 and ≤ 85 years of age. Females must be non-pregnant, non-lactating,
and not planning to become pregnant during the study period

- Females of childbearing potential must use acceptable methods of contraception, be at
least one year post-menopausal or be surgically sterile

- Willing and able to comply with the 5 year follow-up period

- Willing to give informed written consent prior to enrollment

- Males with infrarenal AAA ≥ 4.5cm in diameter, or AAA growth ≥ 1.0cm/yr; females with
infrarenal AAA ≥ 4.0cm in diameter, or AAA growth ≥ 1.0cm/yr

- Infrarenal AAA with a proximal neck diameter of 16.0 - 31.0mm (Anaconda Stent Graft
System)

- Infrarenal AAA with a proximal neck diameter of 17.5 - 31.0mm (Anaconda ONE-LOK Stent
Graft System)

- Infrarenal AAA with at least 15mm length of non-aneurysm proximal neck

- Infrarenal AAA with an angle of ≤ 60 degrees relative to the long axis of the aneurysm

- Iliac artery distal fixation sites ≥ 20mm in length

- Iliac artery distal fixation site ≤ 21mm in diameter

- Ability to preserve at least one hypogastric artery

- Femoral/iliac artery access vessels, size and morphology should be compatible with the
appropriate introducer sheath (18 F, 20 F or 23 F).

Exclusion Criteria;

- Pregnant and lactating females or females of childbearing potential unless using
acceptable method contraception

- Known sensitivity or allergy to nitinol or polyester

- Known allergy or intolerance of radiopaque contrast agents which cannot be pre-treated

- Thrombus, calcification, and/or plaque ≥ 2mm in thickness and/or ≥ 50% (180 degrees)
continuous coverage of the vessel circumference in the intended fixation site

- Irregularly shaped calcification and/or plaque that may compromise the sealing and
fixation at the proximal or distal fixation sites

- Ruptured or leaking AAA

- Mycotic or inflammatory AAA

- Genetic connective tissue disorder (i.e. Marfans or Ehlers-Danlos syndromes)

- Previous AAA repair

- Requires emergent AAA repair

- Concomitant thoracoabdominal aortic aneurysm

- Active systemic infection

- Myocardial infarction ≤10 weeks prior to procedure

- Aneurysm extends above renal arteries

- Dialysis dependent renal failure or creatinine > 2.5mg/dL

- Significant (>80%) renal artery stenosis not readily treatable

- End-stage chronic obstructive pulmonary disorder

- Patient is clinically and morbidly obese such that the required imaging would be
prevented

- Patient has an uncorrectable bleeding abnormality

- Subject has other medical, social, or psychological problems that in the opinion of
the investigator preclude them from receiving this treatment and the procedures and
evaluations pre- and post- treatment