Peripheral artery disease is narrowing of the arteries outside the heart, most often in the legs, caused by atherosclerosis that reduces blood flow and raises the risk of limb complications and cardiovascular events. We explain what PAD looks like, how we evaluate it, and what treatment and follow up typically involve.
What is peripheral artery disease
Peripheral artery disease, often called PAD, develops when fatty plaque builds up in peripheral arteries. Plaque limits blood flow to muscles and skin, most commonly in the legs. Symptoms range from none, to exertional leg pain called claudication, to severe ischemia with non healing wounds.
PAD is a marker of systemic atherosclerosis. Finding PAD should prompt assessment of overall cardiovascular risk, including heart attack and stroke risk. At The NY Center for the Prevention of Heart Disease we view PAD as an opportunity to treat risk factors aggressively with lifestyle changes and medical therapy.
Common diagnostic tests include the ankle brachial index, vascular ultrasound, and advanced imaging when needed. We use these tests alongside a full cardiovascular risk evaluation and targeted treatment plans.
Why PAD matters for people in New York
PAD affects older adults, people with diabetes, and those with high blood pressure or high cholesterol. These conditions are common across Manhattan, the Bronx, Queens, Brooklyn, Westchester, Long Island and New Jersey. For residents and commuters in the greater New York metropolitan area, walking and daily activity can reveal symptoms early.
Recognizing PAD locally matters because delayed diagnosis increases the chance of limb complications and missed prevention of heart attack and stroke. We coordinate care with primary care physicians and other specialists to manage vascular risk and keep patients active and working.
Key concepts to understand
- Atherosclerosis. Plaque builds in artery walls and narrows the lumen, reducing blood flow to the legs.
- Claudication. Cramping or aching in calf, thigh or buttock that starts with walking and eases with rest.
- Critical limb ischemia. Severe PAD with rest pain, non healing sores, or gangrene that needs urgent vascular care.
- Ankle brachial index. A simple blood pressure comparison between the arm and ankle that screens for PAD. For more on diagnostic testing see our page on advanced cardiac testing.
- Vascular imaging. Duplex ultrasound, CT angiography, and MR angiography show where arteries are narrowed.
- Medical management. Antiplatelet therapy, statin therapy, and risk factor control reduce cardiovascular events and slow progression. We discuss cholesterol control on our Cholesterol Management page.
- Lifestyle interventions. Exercise, smoking cessation and weight management improve symptoms and long term outcomes.
How PAD is diagnosed
Diagnosis begins with history and physical exam focused on leg symptoms and pulses. The ankle brachial index is the most common first line test. We interpret the ABI in context of symptoms and the overall heart risk profile.
When ABI or exam suggests disease, duplex vascular ultrasound maps flow and identifies specific blockages. Advanced imaging with CT angiography or MR angiography is used when intervention is being considered or when ultrasound is inconclusive. We place these tests into the larger preventive cardiology plan rather than treating PAD in isolation.
Duplex ultrasound and ABI are non invasive tests. They help separate PAD from other causes of leg pain such as spinal stenosis or arthritis.
Treatment options and what to expect
Treatment focuses on three goals: relieve symptoms, heal or prevent limb threats, and reduce heart attack and stroke risk. For most patients we start with medical therapy and supervised or structured exercise therapy.
Medical therapy includes antiplatelet therapy when appropriate, high intensity statin therapy for cholesterol control, management of hypertension and diabetes, and smoking cessation support. We coordinate these elements with primary care and with our programs in Hypertension Management and Preventive Cardiology.
When lifestyle and medical therapy do not control symptoms or when there is tissue loss, vascular specialists may perform endovascular or surgical revascularization. We partner with vascular surgery and interventional radiology to determine the best approach for each patient.
Pro tip: For patients with PAD, optimizing cholesterol and blood pressure reduces the risk of heart attack and stroke as well as the risk of PAD progression.
Checklist: When to see a heart specialist about leg symptoms
Consider evaluation if you have any of these
- Leg pain or cramping when walking that goes away with rest.
- Poorly healing sores, ulcers, or color changes on toes or feet.
- Cold feet, decreased hair growth on legs, or weak pulses in the ankles.
- A history of diabetes, smoking, high cholesterol, or high blood pressure and new leg symptoms.
- A known diagnosis of PAD and new or worsening symptoms despite treatment.
Common questions patients ask
Will PAD cause a heart attack? PAD and coronary artery disease share the same underlying atherosclerosis. Having PAD increases the risk of heart attack and stroke. That is why PAD prompts a full cardiovascular risk assessment and targeted prevention.
Can exercise help? Yes. Supervised or structured walking programs improve walking distance and symptoms for many patients. Exercise is part of a broader treatment plan that includes medical therapy and risk factor control.
Is surgery always required? No. Most patients start with medical therapy and lifestyle measures. Revascularization is reserved for severe symptoms or limb threat, and the decision is individualized with vascular specialists.
Related services we provide
Managing PAD requires controlling multiple cardiovascular risks. At The NY Center for the Prevention of Heart Disease we offer focused programs in preventive cardiology and linked services that address PAD contributors. Some related services include:
- Preventive Cardiology, which coordinates risk assessment and long term follow up.
- Cholesterol Management to lower atherogenic lipids and reduce plaque progression.
- Hypertension Management to reach blood pressure targets that lower vascular events.
- Stroke Prevention strategies, because PAD patients have elevated stroke risk.
- Atrial Fibrillation Treatment coordination when arrhythmia and vascular disease coexist.
Related locations and local care coordination
We provide preventive cardiology care to adults across Manhattan, the Bronx, Queens, Brooklyn, Westchester, Long Island, New Jersey and the greater New York metropolitan area. Managing PAD often requires coordination with primary care, wound care, vascular surgery and podiatry. We work with local specialists and clinics to keep care integrated and accessible.
For patients who travel for care, we document prior tests and imaging so recommendations build on previous work rather than repeat testing unnecessarily.
Helpful resources and further reading
For authoritative background on PAD and prevention, consider these resources from national organizations:
- American Heart Association, Peripheral Artery Disease. Practical patient focused information about diagnosis and management.
- Centers for Disease Control and Prevention, Peripheral Arterial Disease. Public health perspective on risk factors and prevention.
Key takeaway
PAD signals systemic vascular disease. Early recognition, targeted risk factor control, and coordinated care reduce limb complications and lower heart attack and stroke risk. Preventive cardiology ties PAD care to broader cardiovascular prevention.
Frequently asked questions
What are the early symptoms of peripheral artery disease?
Early symptoms can be minimal, but many patients notice exertional leg pain or cramping that starts with walking and stops with rest, called claudication. Other signs include decreased ankle pulses and slow healing wounds.
How is the ankle brachial index performed and what does it show?
The ankle brachial index compares blood pressure in the arm to blood pressure at the ankle. A lower ankle pressure suggests significant arterial narrowing. ABI is a screening test that guides further vascular imaging.
Can lifestyle changes reverse PAD?
Lifestyle changes, especially smoking cessation and structured exercise, improve symptoms and slow progression. Medical therapy treats the underlying atherosclerosis and reduces cardiovascular events. Reversal of advanced plaque is unlikely without procedural intervention.
When is revascularization considered?
Revascularization by endovascular or surgical means is considered for lifestyle limiting symptoms despite optimal medical therapy, or for threatened tissue such as an ulcer that is not healing. The decision is individualized with vascular specialists.
How does PAD relate to heart attack and stroke risk?
PATIENTS WITH PAD have a higher risk of heart attack and stroke because atherosclerosis is often present in multiple vascular beds. Detecting PAD prompts comprehensive cardiovascular risk management.
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