What are the symptoms of PAD in renal arteries?

The symptoms of a renal artery stenosis (RAS) or peripheral artery disease (PAD) in the renal arteries can vary depending on the severity of the narrowing and whether one or both arteries are affected. In many cases, people with RAS do not experience any symptoms at all. When symptoms do occur, they may include:

1. High blood pressure (hypertension): This is the most common symptom of RAS. The narrowing of the renal arteries can lead to an increase in blood pressure, as the kidneys are not able to properly regulate blood flow.

2. Kidney failure: In severe cases, RAS can lead to kidney failure as the kidneys are not able to receive enough blood to function properly. Kidney failure can cause a variety of symptoms, including fatigue, weakness, nausea, vomiting, swelling in the legs and feet, and decreased urine output.

3. Heart disease: RAS can increase the risk of heart disease, including heart attack and stroke. This is because the narrowing of the renal arteries can lead to atherosclerosis, a condition in which plaque builds up in the arteries and hardens.

4. Leg pain: If the narrowing of the renal arteries is severe, it can cause pain in the legs, especially when walking or exercising. This pain is caused by the lack of blood flow to the legs.

5. Erectile dysfunction: In men, RAS can cause erectile dysfunction, as the narrowing of the renal arteries can affect blood flow to the penis.