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Welcome Disease Treatment Options Cook Medical Products Glossary of terms

Glossary of terms


Abdominal aortic aneurysm

A bulge that occurs in the part of the aorta that passes through the abdomen (stomach area). The bulge (enlarging and thinning) of the aorta is due to a weakening in the arterial wall.


A bulge or ballooning (enlarging and thinning) of a weakened area of a blood vessel.


The main artery that carries blood from the heart to the rest of the body.



Inside or within a blood vessel.

Endovascular graft

A graft placed inside a diseased vessel without the use of open surgical techniques. The graft makes a new path through which the blood flows.

Endovascular repair

Placement of a stent graft to seal off or reline an aortic aneurysm. Instead of opening up the abdomen or chest, the doctor makes a small cut near the hip (near the crease between the belly and thigh) to get to the femoral artery (blood vessel). Through this small cut, a graft (metal and fabric tube) is inserted through the femoral artery and gently moved into place to cover the lesion. The graft makes a new path through which the blood flows.


Femoral arteries

Blood vessels that run down each leg and carry blood to the thighs and lower body. Doctors can use the femoral arteries as a path to reach arteries in the chest and belly.


Iliac arteries

The two large blood vessels that connect the lower end of the aorta to the femoral artery in each leg.


Open surgical repair

A type of surgery performed to repair an aneurysm. To reach the aneurysm, a doctor makes a cut through the abdomen, chest, or the side of the patient. The doctor repairs the aorta by replacing the aneurysm section with a fabric tube called a graft. The graft is sewn into place and acts as a replacement blood vessel.



When a blood vessel bursts, causing serious internal bleeding.



Metal parts of the stent graft that spring outward toward the vessel walls and provide support to the stent graft.

Stent graft

A metal and fabric tube placed inside a diseased vessel without the use of open surgery. The graft makes a new path for the blood to flow through, relining the diseased vessel.


Thoracic aortic aneurysm

An aneurysm in the part of the aorta that runs through a person’s chest.



Referring to the vessels that carry blood.