What Is Peripheral Artery Disease and How Does It Affect Seniors?
Peripheral artery disease occurs when narrowed arteries reduce blood flow to the limbs, usually the legs. This common condition affects millions of seniors, causing pain, mobility limitations, and increased risk for serious complications including amputation. Understanding peripheral artery disease helps seniors recognize symptoms and seek treatment that can prevent progression.
Understanding Peripheral Artery Disease
Peripheral artery disease, commonly called PAD, develops when fatty deposits called plaque build up in artery walls, narrowing the vessels and reducing blood flow. This is the same process that causes coronary artery disease in the heart. In PAD, the affected arteries supply the legs, and sometimes the arms.
Reduced blood flow means leg muscles do not receive adequate oxygen during activity, causing pain. Severe PAD can reduce blood flow enough to cause tissue damage even at rest, potentially leading to wounds that will not heal and gangrene.
Risk Factors
PAD shares risk factors with other cardiovascular diseases. Smoking is the strongest risk factor, dramatically increasing PAD likelihood. Diabetes, high blood pressure, high cholesterol, and obesity all contribute to artery damage. Age is a significant factor, with PAD prevalence increasing substantially after 65.
Having PAD indicates atherosclerosis likely affects other arteries too. People with PAD have significantly elevated risk for heart attack and stroke. This systemic vascular disease requires comprehensive cardiovascular risk management.
Recognizing Symptoms
The hallmark PAD symptom is claudication, pain in the legs during walking that resolves with rest. Typically described as cramping, aching, or fatigue in calf muscles, claudication occurs because working muscles need more blood than narrowed arteries can supply. Pain consistently occurs after walking similar distances and relieves within minutes of stopping.
As PAD progresses, symptoms may include pain at rest especially at night when lying down, numbness or weakness in legs, coldness in lower leg or foot compared to the other leg, sores on feet or legs that heal slowly or not at all, and color changes in leg skin. Hair loss on legs and slower toenail growth may also occur.
Many people with PAD have no symptoms or attribute symptoms to aging. Lack of symptoms does not mean lack of disease or risk.
Diagnosis
PAD is often diagnosed with the ankle-brachial index, a simple, painless test comparing blood pressure in the ankle to blood pressure in the arm. Lower pressure in the ankle indicates blocked arteries. Additional tests including ultrasound or angiography may evaluate blockage location and severity.
Screening is recommended for those with PAD symptoms, those over 65, and those 50 to 64 with risk factors including diabetes or smoking.
Treatment Approaches
Lifestyle modifications are foundational. Quitting smoking is essential as continued smoking accelerates disease and undermines other treatments. Regular walking exercise, despite causing pain, improves symptoms by promoting collateral blood vessel development. Healthy diet and weight management support vascular health.
Medications address risk factors and symptoms. Blood thinners prevent clots. Cholesterol medications slow plaque progression. Blood pressure medications protect vessels. Medications specifically for claudication may improve walking distance.
Severe PAD may require procedures to restore blood flow including angioplasty, stenting, or bypass surgery. These interventions address critical blockages when conservative measures fail.
Getting PAD Evaluation
All Seniors Foundation encourages seniors with leg pain or PAD risk factors to seek evaluation. Early detection and treatment prevent progression to serious complications. Contact us if you have concerns about circulation problems.
