The body has two types of artery systems: the coronary artery system, which relates to the heart, and peripheral artery system, which involves the arteries carrying oxygenated blood to the arms, legs and brain.
Just like coronary arteries, peripheral arteries can become diseased. This condition, called peripheral artery disease, or PAD, narrows arteries and reduces blood flow due to a buildup of fatty deposits on the artery walls. This can cause claudication, which is muscle pain and cramping when a person is active but usually disappears after a few minutes of rest.
If this sounds familiar, take a few minutes to learn more about PAD.
If arteries in your brain are affected, symptoms may include dizziness, weakness in the arms and legs, or loss of consciousness.
If you experience any of these symptoms, make an appointment with a cardiologist, who will conduct a physical exam and record your health history. The exam will include finding a pulse in the affected limb and comparing it with the pulse in the unaffected limb.
Cardiologists have a wide range of tools available, depending on the degree of your symptoms, to help you return to the activities you love. For example, if you can walk a few blocks with only mild pain, they may prescribe medications including aspirin, statins or blood thinners. They also may discuss ways you can modify your risk factors, such as quitting smoking; controlling blood pressure, cholesterol and diabetes; and increasing your activity level.
If you have more significant symptoms, such as not being able to tolerate the pain when walking, a cardiologist typically will order a CT scan with contrast, an ultrasound or an angiogram to determine the location and degree of the blockage.
To relieve the blockage, your cardiologist may refer you to a vascular medicine specialist or proceduralist who will conduct an arterial angioplasty. In this procedure, a tiny balloon is inserted into the artery and expanded, pushing the blockage into the arterial wall. At the same time, the balloon can leave behind a stent, which acts as a support for keeping the artery open. The stent itself may contain a drug that helps keep the artery open.
To break up a blockage, the vascular proceduralist also may inject a clot-dissolving drug into the artery where the clot is located.
An untreated blockage can progress and completely interrupt the flow of blood to the affected limb. This loss of blood supply can lead to severe pain even when a person is resting, ulcers, gangrene — and eventually could require amputation.
If you have one or more risk factors, you can take action to prevent or stop the progression of PAD.
This article first appeared on the Mayo Clinic Health System blog.