What Is Aortoiliac Occlusive Disease?
Your aorta is your main blood vessel. It comes out from your heart, down through your chest, and into your belly. There, it branches off into your iliac arteries.
Your iliac arteries bring blood down into your legs.
Aortoiliac occlusive disease is a type of peripheral artery disease (PAD).
It happens when your aorta and iliac arteries become narrow or blocked by:
- Plaque — a hard substance made of cholesterol
- Fatty deposits
- Calcium
- Other substances in your blood.
As plaque builds up, it causes the arteries to narrow and harden, slowing — and even stopping — blood flow.
Aortoiliac occlusive disease causes and risk factors
Atherosclerosis — or hardening of the arteries — is a leading cause of aortoiliac occlusive disease.
Some risk factors for atherosclerosis include:
- High cholesterol
- High blood pressure
- Smoking
- Diabetes
- Being overweight or obese
- Not getting enough exercise
- Eating an unhealthy diet
- Having a family history of heart and vascular disease
- Inactive lifestyle
Another cause can include radiation to the pelvis. This may lead to inflammation in the arteries and progression of PAD.