What causes popliteal artery occlusion?

What causes popliteal artery occlusion?

Popliteal artery entrapment syndrome (PAES) is caused by an abnormal calf muscle, usually the gastrocnemius muscle. The condition may occur from birth (congenital) or develop later in life (acquired).

What happens if the popliteal artery is blocked?

Popliteal artery entrapment syndrome occurs when the popliteal artery, the main artery for the lower body, is compressed by muscles behind the knee, restricting blood flow through the legs. People with this condition develop pain with walking or during strenuous exercise.

What is popliteal artery occlusion?

Popliteal artery occlusion is usually the end stage of a long-standing disease process of atheromatous plaque formation. Once formed, the atherosclerotic core is a highly thrombogenic surface that promotes platelet aggregation, which results in disturbances of blood flow.

What operations are performed for occlusion of the popliteal artery?

Surgical therapy for popliteal artery occlusion involves bypass of the occlusion, which can be achieved with grafts, including great saphenous vein (GSV) or prosthetic (eg, polytetrafluoroethylene [PTFE]) grafts. GSV bypass can be used in a reversed or a nonreversed in-situ orientation.

How is popliteal artery occlusion treated?

Surgery is the only way to correct the abnormal calf muscle and free the trapped artery. Your doctor will likely recommend surgery if your symptoms significantly affect your everyday or athletic activities.

Why is popliteal artery more prone to aneurysm?

Why the popliteal artery is more susceptible than other peripheral muscular arteries is unknown. An important factor may be differences in arterial wall composition as compared with other peripheral muscular arteries, which in turn affect wall properties. These are however unknown.

What is the function of the popliteal artery?

The popliteal artery provides numerous branches of blood supply to the structures of the knee and the lower extremity. Originating from above the knee joint are the superior medial and superior lateral genicular arteries with connections to the deep femoral artery providing collateral blood flow proximal to the knee.

What causes arterial occlusion?

The major risk factors for arterial occlusive disease are age, high levels of cholesterol and triglycerides (a type of fat found in the blood), high blood pressure, diabetes, smoking and a history of plaque build-up in the arteries. Men are more likely than women to develop arterial occlusive disease.

What is occlusion of artery?

An occlusion is a complete or partial blockage of a blood vessel. While occlusions can happen in both veins and arteries, the more serious ones occur in the arteries. An occlusion can reduce or even stop the flow of oxygen-rich blood to downstream vital tissues like the heart, brain, or extremities.

What is an early symptom of arterial occlusive disease?

Pain in the calves or thighs while walking is the most common symptom of lower extremity occlusive disease. Some people may also experience numbness, weakness, or cold in the feet or legs. As the disease progresses, pain may also be felt at rest in the toes and ulcers may develop.

What is the most common cause of acute arterial occlusion?

What causes acute arterial occlusion? The most common cause of acute arterial occlusion is a blood clot (thrombus) in one of your arteries. A blood clot can form anywhere in your body, but it’s most common in your legs. It’s especially common in your superficial femoral artery, which supplies blood to your lower leg.

What are the symptoms and causes of a popliteal aneurysm?

How can a popliteal aneurysm be detected?

• A pulse within the leg.
• Any signs and symptoms of restricted blood flow (acute lower limb ischaemia.
• Whether you can feel or move the foot.
• Excruciating pain progressively evolving towards numbness.
• Irreversible coldness, pallor and mottling of the foot and leg.

What organ does popliteal artery supply?

Knee joint
The popliteal artery is one of the major arteries of the leg.
…
Popliteal artery.

What are the 5 P’s of arterial occlusion?

Patients with an extremity embolus can frequently pinpoint the exact time that symptoms began. The six Ps (pain, pallor, poikilothermia, pulselessness, paresthesia, paralysis) are the classic presentation of acute arterial occlusion in patients without underlying occlusive vascular disease.

What causes occlusion in arteries on the lower leg?

The most common cause of acute arterial occlusion is a blood clot (thrombus) in one of your arteries. A blood clot can form anywhere in your body, but it’s most common in your legs. It’s especially common in your superficial femoral artery, which supplies blood to your lower leg.

What is the difference between occlusion and ischemia?

Acute arterial occlusion is a sudden blockage or closing of one of your peripheral arteries that interrupts blood flow. Healthcare providers also call this condition acute limb ischemia. “Ischemia” means part of your body isn’t receiving enough oxygen-rich blood.

What are the signs of clogged arteries in your legs?

What Are the Symptoms of a Blocked Artery in Your Leg?

• Painful cramping in one or both of your hips, thighs, or calf muscles after doing physical activities, such as walking or climbing stairs.
• Prolonged soreness on your feet, legs, and toes that don’t heal or are very slow to heal.
• Discoloration of legs.

Why aneurysm is common in popliteal artery?

Clogged arteries (atherosclerosis) High blood pressure. Wear and tear of the popliteal artery due to repetitive use of the knee joint. Weakening of the artery wall.

What is the function of popliteal artery?

What muscle is deep to popliteal artery?

The popliteal artery runs between the two heads of the gastrocnemius muscle of the leg.

What are the signs of arterial occlusion?

The classic presentation of limb ischemia is known as the “six Ps,” pallor, pain, paresthesia, paralysis, pulselessness, and poikilothermia. These clinical manifestations can occur anywhere distal to the occlusion. Most patients initially present with pain, pallor, pulselessness, and poikilothermia.

What causes artery occlusion?

The blockage usually comes from a blood clot or cholesterol deposit in your blood vessel. This is a serious condition. You should seek prompt medical attention. If a blood clot breaks free and moves to the brain, it could cause a stroke.

What causes occlusion of an artery?

Most occlusions are caused by either a blood clot or the buildup of fatty plaque in the arteries (atherosclerosis). A blood clot can form at the site of occlusion, or it can travel from another area through the bloodstream and block an artery. That runaway clot is called an embolism.

How do they clear blocked arteries in legs?

Angioplasty is a procedure to open narrowed or blocked blood vessels that supply blood to your legs. Fatty deposits can build up inside the arteries and block blood flow. A stent is a small, metal mesh tube that keeps the artery open. Angioplasty and stent placement are two ways to open blocked peripheral arteries.

What is considered the first symptom of peripheral arterial disease?

The classic symptom of PAD is pain in the legs with physical activity, such as walking, that gets better after rest. However, up to 4 in 10 people with PAD have no leg pain. Symptoms of pain, aches, or cramps with walking (claudication) can happen in the buttock, hip, thigh, or calf.