- Renal artery disease is the narrowing or blockage of arteries that supply oxygen-rich blood to the kidneys.
- A primary cause of renal artery disease is atherosclerosis, which is the buildup of cholesterol and fat (plaque) on the artery walls.
- Symptoms of renal artery disease include high blood pressure, known as renal vascular hypertension. Severe renal artery disease may lead to kidney failure.
- Renal artery disease is a type of peripheral arterial disease, which is blockage of the arteries that carry blood from the heart to the limbs, head and organs.
The kidneys need adequate blood flow to help remove waste products and fluids from the body. With renal artery disease, the reduced blood flow can increase blood pressure in the entire body and injure kidney tissue.
Renal artery disease occurs mostly in men between the ages of 50 and 70. Often, the disease affects the arteries leading to one of the kidneys. But in about one-third of the cases, the arteries leading to both kidneys are affected. Left untreated, it can cause permanent kidney damage.