When you have end-stage renal disease, your kidneys cannot remove waste from your blood. And your kidneys are not able to balance your body's fluids and chemicals. Over time, these changes can cause problems that damage your blood vessels and lead to poor or reduced blood flow (vascular compromise).
Problems that can damage your blood vessels include:
- Fatty buildup (plaque) inside artery walls (atherosclerosis). Arteries are the blood vessels that carry blood from your heart to the rest of your body. Atherosclerosis can happen in anyone, but it often develops more quickly in people with end-stage renal disease.
- Certain minerals getting out of balance, such as calcium and phosphorus. This can cause the blood vessels to harden. This hardening is called vascular calcification.
- Blood vessels aging faster than normal.
- Chronic inflammation in the body, which can damage blood vessels over time.
These problems can also increase the risk of other conditions that cause reduced blood flow, such as peripheral arterial disease (PAD).
PAD is a narrowing or blockage of the arteries that carry blood to your legs, arms, and head. It most often affects arteries in the legs, causing leg and foot pain.
People with end-stage renal disease are at a higher risk for developing PAD. When you have PAD, even minor injuries can lead to infections. If serious enough, PAD can cause problems with walking, tissue death (gangrene), and loss of a toe, a foot, or a leg (amputation).
PAD also makes it more likely that arteries in other body areas are blocked. For instance, arteries that carry blood to the heart or brain may be affected. This raises the chances of heart attack, stroke, and death.