Understanding Peripheral Artery Disease (PAD)

What It Is, Why It Happens, and How It’s Treated

Peripheral Artery Disease (PAD) is a common but often overlooked circulatory condition that affects millions of people—especially adults over 50. PAD occurs when the arteries that carry blood to your legs and feet become narrowed or blocked due to plaque buildup. When blood flow is reduced, your muscles and tissues don’t receive enough oxygen, leading to pain, numbness, and in severe cases, limb-threatening complications.

Early detection and treatment are essential for preventing serious outcomes.

What Causes Peripheral Artery Disease?

PAD is primarily caused by atherosclerosis, a condition where fatty deposits (plaque) accumulate inside the artery walls. Over time, this plaque hardens and narrows the arteries, reducing blood flow.

Factors that increase the risk of developing PAD include:

Major Risk Factors

• Smoking (the biggest preventable cause)
• Diabetes
• High blood pressure
• High cholesterol
• Family history of vascular disease
• Obesity
• Sedentary lifestyle
• Age over 50

Smoking and diabetes together dramatically increase the risk of PAD and make the condition progress much faster.

Common Symptoms of PAD

Many people with PAD don’t notice symptoms right away, which is why the condition is often underdiagnosed.

Most Common Signs

• Leg pain or cramping during walking (called claudication)
• Numbness or weakness in the legs
• Coldness in the lower leg or foot
• Sores or wounds on the toes or feet that do not heal
• Color changes in the feet (pale, blue, or dark red)
• Weak or no pulse in the legs or feet
• Shiny skin or hair loss on the legs

If PAD becomes severe, it can lead to critical limb ischemia—when blood flow is so limited that tissue begins to die. This is a limb-threatening emergency and requires immediate treatment.

Why PAD Is Serious

PAD is not just a leg problem — it's a warning sign of widespread vascular disease.

People with untreated PAD have a much higher risk of:

• Heart attack
• Stroke
• Amputation
• Life-threatening infections

That’s why early detection and proper management are essential.

How PAD Is Diagnosed

Vascular specialists use several noninvasive tests to diagnose PAD:

Common Diagnostic Tests

• Ankle-Brachial Index (ABI): Compares blood pressure in the ankle and arm.
• Ultrasound Doppler: Shows blood flow in the arteries.
• CT or MR Angiography: Creates detailed images of blood vessels.
• Pulse Volume Recordings (PVR): Measures changes in blood volume in the legs.

These tests help determine how severe the blockage is and guide the best treatment approach.

Treatment Options for PAD

Treatment depends on how advanced the disease is.

1. Lifestyle Changes

Often the first step—especially effective in early PAD:

• Quit smoking
• Exercise regularly (supervised walking programs help most)
• Eat a heart-healthy diet
• Manage diabetes and blood pressure

2. Medications

Your doctor may prescribe medications to:

• Improve blood flow
• Reduce cholesterol
• Control blood pressure
• Prevent blood clots

3. Minimally Invasive Procedures

If blockages are more severe, endovascular procedures can restore circulation:

• Angioplasty: A balloon opens the blocked artery.
• Stenting: A small metal mesh keeps the artery open.
• Atherectomy: Removes plaque from the artery.

These procedures are often same-day and require only small incisions.

4. Surgical Options

For advanced or complex PAD, surgery may be necessary:

• Bypass surgery creates a new path for blood flow around the blockage.

Can PAD Be Prevented?

Yes — especially if caught early.

To reduce your risk:

• Don’t smoke
• Maintain healthy blood sugar and cholesterol
• Stay active
• Eat fresh, whole foods
• Know your family history
• Get checked if you experience leg pain when walking

When Should You See a Vascular Specialist?

You should schedule an evaluation if you experience:

• Leg pain when walking
• Slow-healing wounds on your feet or toes
• Numbness or coldness in your feet
• Color changes in your toes
• Leg fatigue or heaviness
• Risk factors such as diabetes or smoking

Take the First Step Toward Healthier Circulation

Peripheral Artery Disease is serious, but with early detection and expert treatment, most patients can return to normal, active lives. Our vascular and endovascular specialists provide advanced diagnostics and minimally invasive procedures to restore blood flow and protect limb health.