Endovascular Carotid Revascularization

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What is Endovascular Carotid Revascularization?

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Definition

Endovascular carotid revascularization is a minimally invasive procedure used to restore blood flow in the carotid arteries, which supply oxygen-rich blood to the brain. It is performed to treat carotid artery stenosis (narrowing) caused by plaque buildup (atherosclerosis).

Purpose

Prevents ischemic strokes by removing or bypassing blockages.

Improves blood flow to the brain.

Reduces the risk of future strokes.

When is it recommended?

For patients with moderate to severe carotid artery stenosis (≥50%).

Individuals at high risk for open surgery.

Those who have had a minor stroke or transient ischemic attack (TIA).

Types of Endovascular Carotid Revascularization

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Most common type of endovascular revascularization.

A catheter is inserted into the artery.

A stent (small mesh tube) is placed in the narrowed artery.

The stent holds the artery open, restoring blood flow.

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Less invasive alternative to CAS.

A small incision is made at the base of the neck.

A flow-reversal system temporarily redirects blood flow away from the brain.

A stent is placed to keep the artery open.

Used for patients at high risk for traditional surgery.

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A balloon-tipped catheter is inserted into the carotid artery.

The balloon is inflated to widen the narrowed artery.

May be performed alone or before stenting.

Symptoms Indicating the Need for Endovascular Carotid Revascularization

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Neurological Symptoms

Sudden weakness or numbness on one side of the body.

Facial drooping or asymmetry.

Slurred or impaired speech (dysarthria).

Loss of coordination or balance.

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Visual Disturbances

Blurred or temporary vision loss.

Double vision or difficulty focusing.

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Transient Ischemic Attack (TIA)

"Mini-strokes" with temporary stroke symptoms.

Resolve within 24 hours but indicate a high stroke risk.

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Stroke Symptoms

Severe headache.

Confusion or difficulty understanding speech.

Sudden dizziness or lack of coordination.

Risk Factors for Endovascular Carotid Revascularization

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Causes Leading to Endovascular Carotid Revascularization

Carotid Artery Stenosis

Narrowing of the carotid artery due to plaque buildup.

Reduces blood flow to the brain.

Increases the risk of stroke.

Atherosclerosis

Cholesterol and fat deposits cause plaque formation.

Hardens and narrows the artery.

Ischemic Stroke or TIA History

Prior stroke or TIA due to carotid artery blockage.

Increased risk of future strokes.

Embolism Risk

Fragments of plaque or clots can break off.

Travel to the brain and cause a stroke.

How to Prevent the Need for Endovascular Carotid Revascularization?

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Healthy Diet

Low-fat, low-cholesterol diet.

Increase fiber, fruits, and vegetables.

Limit saturated fats and processed foods.

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Regular Exercise

150 minutes of moderate activity weekly.

Improves cardiovascular health.

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Quit Smoking

Reduces plaque buildup.

Improves circulation.

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Manage Blood Pressure and Cholesterol

Blood pressure control prevents arterial damage.

Cholesterol-lowering medications reduce plaque formation.

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Blood Thinners

Antiplatelet medications (aspirin or clopidogrel) prevent clot formation.

Reduces stroke risk.

Treatment of Carotid Artery Disease with Endovascular Revascularization

Medications Before the Procedure

Antiplatelet agents (aspirin and clopidogrel) to prevent clotting.

Statins to lower cholesterol.

Blood pressure medications to stabilize hypertension.

Endovascular Carotid Revascularization Procedures

Minimally invasive techniques to restore blood flow.

Carotid stenting, TCAR, or angioplasty.

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Procedures for Endovascular Carotid Revascularization

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Carotid ultrasound: Identifies artery narrowing.

CT or MRI angiography: Provides detailed artery images.

Blood tests: Check for clotting disorders.

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Carotid Artery Stenting (CAS)

Local anesthesia applied.

Catheter inserted into the femoral artery.

Stent placed in the narrowed carotid artery.

Improves blood flow.

Transcarotid Artery Revascularization (TCAR)

Small neck incision made.

Flow-reversal system redirects blood flow.

Stent placed to open the artery.

Carotid Angioplasty

Balloon catheter inserted.

Balloon inflated to widen the artery.

May be followed by stent placement.

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Hospital Stay

Patients monitored for 1–2 days.

Vital signs and neurological status checked.

Medications

Antiplatelet therapy to prevent blood clots.

Statins to reduce cholesterol.

Recovery and Follow-Up

Light activity allowed after discharge.

No heavy lifting or strenuous activity for 1 week.

Follow-up ultrasound to monitor artery patency.