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Understanding Peripheral Arterial Disease (PAD)
Peripheral arterial disease (PAD) is a common cardiovascular condition where narrowed arteries reduce blood flow to your limbs. This usually affects the legs more than the arms. PAD often results in symptoms like leg pain while walking (claudication).
It can also be a sign of fatty deposit buildup in your arteries, known as atherosclerosis. This condition narrows the arteries and restricts blood flow to your limbs. Exercise, a healthy diet, and quitting smoking are effective ways to manage peripheral artery disease.
Peripheral Artery Disease Symptoms
Many people with PAD experience no or only mild symptoms. However, some suffer from leg pain when walking, known as claudication. Symptoms of claudication include muscle pain or cramping in your legs or arms triggered by activity and relieved after a few minutes of rest. The pain location depends on the blocked or narrowed artery and is most common in the calf.
Claudication can range from mild discomfort to severe pain that limits walking or other physical activities.
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Get A Second OpinionOther signs and symptoms of peripheral artery disease include:
- Cramping in one or both hips, thighs, or calf muscles after certain activities like walking or climbing stairs.
- Leg numbness or weakness.
- Coldness in your lower leg or foot, especially compared to the other leg.
- Non-healing sores on your toes, feet, or legs.
- Change in the color of your legs.
- Hair loss or slower hair growth on your feet and legs.
- Shiny skin on your legs.
- No pulse or a weak pulse in your legs or feet.
- Erectile dysfunction in men.
- Pain in your arms while doing manual tasks like knitting or writing.
If peripheral artery disease progresses, you might feel pain even while resting or lying down, which could be severe enough to disrupt sleep. Hanging your legs over the bed or walking around may temporarily relieve this pain.
Peripheral Artery Disease Causes
Atherosclerosis, the buildup of fatty deposits on your artery walls, is a common cause of peripheral artery disease. While atherosclerosis often affects the heart, it can impact arteries throughout the body. PAD occurs when it affects the arteries supplying blood to your limbs. Other causes include blood vessel inflammation, limb injury, unusual anatomy of your ligaments or muscles, and radiation exposure.
Peripheral Artery Disease Diagnosis
To diagnose peripheral artery disease, your doctor may conduct:
- A physical exam to check for a weak or absent pulse below the narrowed area of your artery sounds over your arteries heard through a stethoscope, poor wound healing, or low blood pressure in the affected limb.
- An ankle-brachial Index (ABI) test compares blood pressure in your ankle and arm using a blood pressure cuff and ultrasound device.
- Doppler ultrasound measures blood flow through your vessels and detects blocked or narrowed arteries.
- Angiography with dye to visualise blood flow through your arteries using X-rays, MRI, or CT scans.
- Catheter angiography is an invasive procedure in which a catheter is inserted into an artery to inject dye and treat a blockage simultaneously.
- Blood tests to measure cholesterol triglycerides and screen for diabetes.
Peripheral Artery Disease Treatment
The main goals of treating peripheral artery disease are to manage symptoms like leg pain and reduce the risk of heart attack and stroke by stopping the progression of atherosclerosis. Early lifestyle changes can be very effective. If you smoke, quitting is crucial. Regular exercise, such as supervised exercise training, can significantly improve symptoms. If you have peripheral artery disease symptoms, you might also need medications to prevent blood clots, lower blood pressure and cholesterol, and manage pain.
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Book an AppointmentPeripheral Artery Disease Treatment Medication
- Cholesterol-lowering medications, like statins, reduce the risk of heart attack and stroke.
- Blood pressure medications to maintain a target below 130/80 mm Hg.
- Blood sugar control medications for diabetes.
- Blood thinners like aspirin or clopidogrel to prevent clots.
- Cilostazol improves blood flow and reduces leg pain, though it may cause headaches and diarrhea.
- Pentoxifylline as an alternative to cilostazol, though it’s less effective.
Angioplasty and Surgery for Peripheral Artery Disease
In some cases, angioplasty or surgery may be necessary:
- Angioplasty : A catheter with a balloon is inserted into a blood vessel and inflated to flatten plaque and reopen the artery. A stent may be placed to keep it open.
- Bypass surgery : Creating a graft using another blood vessel or a synthetic one to bypass the blocked artery.
- Thrombolytic therapy : Injecting a clot-dissolving medication to break up a blood clot in an artery.
Peripheral Artery Disease Risk Factors
Risk factors for peripheral artery disease include:
- Smoking
- Diabetes
- Obesity (BMI over 30)
- High blood pressure
- High cholesterol levels
- Increasing age, especially over 65 or over 50 if you have risk factors for atherosclerosis
- Family history of peripheral artery disease, heart disease, or stroke
- High levels of homocysteine, an amino acid that helps build and maintain tissue
Peripheral Artery Disease Complications
If your peripheral artery disease is caused by plaque accumulation in your blood vessels, you may be at risk for:
- Critical Limb Ischemia : Open sores or infections in your limbs that don't heal, potentially leading to tissue death and amputation.
- Stroke and Heart Attack : The same fatty deposits causing PAD can also affect arteries supplying blood to your heart and brain.
By understanding peripheral artery disease symptoms, causes, diagnosis, treatment options, treatment medication, risk factors, and complications, you can manage the condition effectively and maintain a healthy lifestyle.
Regular check-ups and following your doctor's advice are crucial for managing PAD.
Frequently Asked Questions
Symptoms include leg pain, numbness, weakness, and cramps in the thighs and legs.
Peripheral artery disease (PAD) is mainly caused by fatty plaque buildup in the arteries, a condition called atherosclerosis.
PAD primarily affects arteries in the legs but can also impact arteries leading to the brain, arms, kidneys, and stomach. It increases the risk of heart attack, stroke, or other serious conditions.
Smoking damages the arteries and worsens PAD, so quitting smoking is crucial for managing the disease.
Yes, if untreated, PAD can lead to serious problems like heart attack, stroke, or even limb amputation.
Diabetes can damage blood vessels, increasing the risk of atherosclerosis and PAD.
Angioplasty is a procedure to open blocked arteries and improve blood flow in PAD patients.
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