Peripheral Arterial Disease

Peripheral arterial disease, also called PAD, happens when fatty deposits build up inside the arteries that carry blood to your legs and arms. These deposits narrow the arteries and reduce blood flow to your limbs. Most cases affect the legs, making it harder for oxygen-rich blood to reach your feet and calves.

PAD is a warning sign of atherosclerosis, which means plaque buildup throughout your body. The same process that blocks arteries in your legs can also affect arteries in your heart and brain. This increases your risk for heart attack and stroke. About 8 to 12 million Americans live with PAD, and many don't know they have it.

The condition develops slowly over time as cholesterol, fat, and inflammatory substances accumulate on artery walls. Early detection through blood testing and symptom awareness can help you take action before serious complications develop. With lifestyle changes and proper treatment, you can manage PAD and protect your cardiovascular health.

Common symptoms of peripheral arterial disease include:

• Leg pain or cramping during walking that stops with rest, called claudication
• Numbness or weakness in your legs
• Coldness in your lower leg or foot, especially compared to the other side
• Sores or wounds on your toes, feet, or legs that won't heal
• Color changes in your legs or feet, including pale or bluish skin
• Shiny skin on your legs or slower hair and nail growth
• Weak or absent pulse in your legs or feet
• Erectile dysfunction, especially in men with diabetes

Many people with early PAD have no symptoms at all. Some experience only mild discomfort that they dismiss as normal aging or muscle strain. This makes regular screening important, especially if you have risk factors like smoking or diabetes.

PAD develops when atherosclerosis affects the arteries in your limbs. Smoking is the single biggest risk factor, increasing your PAD risk by 3 to 4 times. High cholesterol and high blood pressure damage artery walls, making it easier for plaque to stick and build up. Diabetes dramatically increases risk by damaging blood vessels and accelerating atherosclerosis. Age matters too, as PAD becomes more common after 50 years old.

Other risk factors include family history of heart disease or PAD, obesity, physical inactivity, and chronic kidney disease. Inflammation plays a key role in disease progression. Higher levels of inflammatory markers like C-reactive protein indicate active artery damage. Medium-sized LDL cholesterol particles are especially harmful because they easily penetrate artery walls. The enzyme Lp-PLA2 promotes plaque formation and instability in peripheral arteries, contributing to narrowing and blockages.

Doctors diagnose PAD through physical examination and testing. They check pulses in your legs and feet, listen to blood flow with a stethoscope, and look for signs of poor circulation. The ankle-brachial index test compares blood pressure in your ankle to pressure in your arm. A ratio below 0.9 suggests blocked arteries. Ultrasound imaging can show blood flow and identify narrowed sections of arteries.

Blood tests help identify inflammation and cholesterol problems that drive PAD progression. Testing for high sensitivity C-reactive protein reveals systemic inflammation linked to disease severity and future complications. LDL particle size testing shows whether you have more medium-sized particles that promote atherosclerosis in leg arteries. Lp-PLA2 activity testing measures an enzyme that directly contributes to plaque buildup in peripheral arteries. Rite Aid offers these specialized tests as add-ons to help you understand your vascular health and risk for PAD progression.

Treatment for peripheral arterial disease focuses on reducing symptoms and stopping disease progression:

• Quit smoking immediately, as this is the single most important step you can take
• Start a supervised walking program to improve circulation and reduce leg pain
• Eat a Mediterranean-style diet rich in vegetables, fruits, fish, and healthy fats
• Control blood sugar levels if you have diabetes through diet, exercise, and medication
• Take statins to lower cholesterol and reduce inflammation in artery walls
• Use antiplatelet medications like aspirin or clopidogrel to prevent blood clots
• Manage blood pressure with medication if lifestyle changes aren't enough
• Consider cilostazol medication to improve walking distance and reduce leg pain
• Explore angioplasty or bypass surgery for severe blockages that limit daily activities
• Practice good foot care to prevent wounds and infections that heal slowly

Work with your doctor to create a treatment plan tailored to your specific situation. Regular monitoring through blood tests and physical exams helps track whether your interventions are working.