Stroke is among the leading causes of death and long-term disability in the United States, and a meaningful share of strokes are caused by narrowing of the carotid arteries in the neck. Roughly 100,000 carotid procedures are performed each year, with the goal of preventing future strokes rather than treating one that is already underway. Carotid endarterectomy (CEA) is a surgical procedure that removes plaque from the inner lining of the carotid artery, restoring smooth blood flow to the brain. Carotid stenting is a less invasive alternative for selected patients. This guide explains how the procedure is performed, the recovery timeline, the risks, and how surgery is weighed against stenting and medical therapy alone.
None of this replaces a conversation with your own vascular surgeon and neurologist, who will factor in your imaging, symptoms, and overall health. Think of it as a way to walk into that conversation better prepared.
What Carotid Endarterectomy Is and Who Needs It
The carotid arteries on either side of the neck supply blood to the brain. Atherosclerotic plaque can narrow the artery and dislodge fragments that cause transient ischemic attacks (TIAs) or strokes. Carotid endarterectomy opens the artery, removes the plaque, and closes the artery to restore smooth flow. The procedure is performed on one side at a time; when both sides need treatment, the procedures are typically staged.
Per the American Heart Association and consistent with MedlinePlus, surgery is generally considered for symptomatic carotid stenosis of about 70 to 99 percent (a TIA or non-disabling stroke caused by the lesion, usually within the past 6 months), and for asymptomatic stenosis of roughly 70 percent or greater in selected patients with adequate life expectancy. Stenosis of less than 50 percent is generally treated with medical therapy alone. Whether an asymptomatic narrowing should be operated on at all is an area of genuine debate, which is why the decision is individualized. For broader stroke and vascular background, see our Medical Conditions guide.
Stroke Is an Emergency: Know BE-FAST
Before anything else about surgery, know the difference between prevention and an emergency. Carotid endarterectomy prevents future strokes; it does nothing for a stroke that is happening right now. A stroke is a call-911 emergency where minutes of brain tissue are at stake. The American Stroke Association’s BE-FAST checklist covers the warning signs:
- B — Balance: sudden loss of balance or coordination
- E — Eyes: sudden trouble seeing in one or both eyes
- F — Face: facial drooping or uneven smile
- A — Arms: one arm drifting down or sudden weakness
- S — Speech: slurred or strange speech
- T — Time: call 911 immediately and note when symptoms started
Do not wait to see if symptoms pass, and do not drive yourself. A TIA (symptoms that resolve quickly) is a warning sign that a full stroke may follow and is itself a reason for urgent evaluation.
How the Procedure Is Performed
Carotid endarterectomy typically takes one to two hours under general or regional anesthesia. Some surgeons prefer awake regional anesthesia (a cervical plexus block) so the patient can be assessed neurologically during temporary clamping of the artery. The surgeon makes an incision along the front of the neck, exposes the carotid bifurcation, clamps the artery temporarily, and opens it lengthwise. The plaque is dissected out, ideally as a single piece. The artery is then closed, often with a patch (a vein graft or a prosthetic patch) to widen the channel and lower the chance of re-narrowing.
A temporary shunt may be placed during clamping to maintain blood flow to the brain. Carotid stenting (CAS) is the catheter-based alternative, typically performed through the femoral or radial artery, with a stent deployed across the lesion and a distal protection device to capture any debris. Hospital stay after CEA is commonly one to two days, and some early, uncomplicated cases go home the same day. Transcarotid artery revascularization (TCAR) is a newer hybrid approach that combines features of surgery and stenting and can be an option in selected patients.
Preparation and What to Expect on the Day
Preoperative preparation includes a carotid duplex ultrasound to confirm the degree of stenosis, often supplemented by CT angiography or MR angiography. Cardiac evaluation is important because patients with carotid disease frequently have coronary disease. Antiplatelet therapy (typically aspirin) is usually continued through surgery. Blood pressure management is critical to reduce both stroke and bleeding risk.
On surgery day, expect to be at the hospital for most of the day. You will be awake or asleep depending on the anesthesia choice. After surgery, frequent neurologic checks look for signs of stroke or cranial nerve injury, and your blood pressure is watched closely. Most patients are out of bed the same day and, if all goes well, discharged the next morning. The neck incision usually heals with minimal scarring.
Recovery Timeline and Rehab
Recovery from carotid endarterectomy is generally rapid. Most patients return to desk work within one to two weeks and resume nearly all activities within four to six weeks. Driving typically resumes within one to two weeks, once cleared. Heavy lifting and contact sports are avoided for two to four weeks. Mild numbness around the incision and minor jaw discomfort are common for several weeks and gradually resolve.
Carotid stenting recovery is similar to other catheter-based procedures: most patients return to most activities within a week, with the groin (femoral) access site requiring a few days of restricted heavy lifting. After either procedure, ongoing risk-factor management is essential. The NHLBI emphasizes statin therapy, antiplatelet medication, blood pressure control, smoking cessation, and diabetes management to reduce future stroke and cardiovascular events. These measures, taken consistently, do more to protect your brain over the long run than the operation itself.
Risks, Complications, and Outcomes
Carotid endarterectomy reduces long-term stroke risk substantially in properly selected patients, but it carries procedural risk. In experienced centers, perioperative stroke or death rates are on the order of 1 to 3 percent for asymptomatic patients and 3 to 6 percent for symptomatic patients. Other risks include cranial nerve injury (roughly 3 to 5 percent, usually temporary), neck hematoma, infection, re-narrowing over time (restenosis), and rare hyperperfusion syndrome with bleeding into the brain. MedlinePlus also lists heart attack and seizures among the possible complications. Carotid stenting tends to carry a slightly higher periprocedural stroke risk and a lower cranial nerve injury rate compared with surgery. These figures are averages; your own risk depends on your anatomy, age, and health, so ask your surgeon for their center’s specific numbers.
When to seek emergency care: Call 911 or go to the nearest emergency room if you experience signs of stroke (facial droop, arm weakness, speech difficulty, sudden vision loss, sudden loss of balance — remember BE-FAST), sudden severe headache (especially after the procedure, which may indicate hyperperfusion), expanding neck swelling or breathing difficulty (which may suggest a hematoma compressing the airway), heavy bleeding from the incision, fever above 101 F with wound drainage, sudden chest pain or shortness of breath, or sudden severe neck pain.
Alternatives and When Surgery May Not Be Needed
Not every carotid lesion needs a procedure. Stenosis of less than 50 percent is generally managed with medical therapy alone. Stenosis between 50 and 70 percent is typically managed medically in asymptomatic patients and treated selectively in symptomatic patients. Optimal medical therapy includes a high-intensity statin, antiplatelet therapy (aspirin or clopidogrel), blood pressure control, diabetes control, and smoking cessation. Medical therapy has improved markedly over the years, which is one reason the threshold for operating on asymptomatic disease is scrutinized.
The best procedure choice (CEA vs CAS vs TCAR) depends on anatomy, age, symptom status, and surgical risk, and it is a shared decision with your vascular surgeon and neurologist. CEA has stronger long-term evidence; stenting has fewer cardiac complications and faster recovery. Stenting or TCAR is often preferred for patients with a “hostile neck” (prior radiation or prior neck surgery), high lesions, or significant cardiac comorbidity. Patients also weighing other cardiovascular procedures may find our guides on coronary bypass surgery and angioplasty useful, since vascular disease is often diffuse.
Cost Considerations
Costs vary widely by hospital, region, surgeon, and insurance, so treat every figure here as a rough estimate to verify for your own situation. Billed charges for carotid endarterectomy commonly fall somewhere in the range of $25,000 to $60,000 without insurance, and carotid stenting can run higher — often $30,000 to $70,000 — largely because of device costs. Medicare and commercial insurers negotiate much lower allowed amounts, and insured patients frequently pay a few thousand dollars out of pocket depending on their plan. The hospital (facility) component usually accounts for the majority of the total. Ask for an itemized estimate and confirm coverage in advance. For broader cost-shopping advice, see our healthcare costs guide.
Frequently Asked Questions
Carotid endarterectomy vs stenting: which is better?
For many patients with significant carotid stenosis, both procedures produce broadly similar long-term stroke prevention. CEA tends to have slightly lower periprocedural stroke risk and stronger long-term data; CAS has fewer cardiac complications and faster recovery. The right choice depends on your anatomy, age, symptom status, and overall surgical risk — a decision your surgeon and neurologist make with you.
How long is recovery from carotid endarterectomy?
Most patients return to desk work within one to two weeks and driving within one to two weeks once cleared. Heavy lifting is avoided for two to four weeks. Many people describe the procedure as easier than expected, with most discomfort resolving within a few days.
Will my carotid plaque come back after surgery?
Restenosis after CEA occurs in a minority of patients (commonly cited as around 5 to 10 percent within 5 years) and is somewhat more common after stenting. Aggressive medical therapy with a high-intensity statin and antiplatelet therapy reduces this risk, and periodic duplex ultrasounds monitor for recurrence.
Will the surgery affect my voice or swallowing?
Cranial nerve injury occurs in roughly 3 to 5 percent of patients and usually causes temporary hoarseness, mild swallowing difficulty, or tongue weakness. Most cases resolve within weeks to a few months. Permanent injury is uncommon.
What to Discuss With Your Surgeon
Carotid endarterectomy is a preventive procedure with strong evidence in properly selected patients. Bring questions about the exact degree of stenosis, whether you are symptomatic or asymptomatic, the surgeon’s annual volume, and the stroke and death rates at that specific institution. As a rule of thumb, the expected procedural risk should be about 3 percent or lower for asymptomatic patients and 6 percent or lower for symptomatic patients to justify the benefit. Also ask whether stenting or TCAR is appropriate for your anatomy. Above all, remember that after any carotid procedure, lifelong medical therapy with a statin, antiplatelet medication, and blood pressure control is what prevents future strokes more than the procedure itself — and your vascular surgeon and neurologist should be the ones steering that plan with you.
TL;DR: Carotid endarterectomy is preventive surgery that removes plaque from a narrowed carotid artery to lower future stroke risk. It is usually considered for higher-grade stenosis, especially with symptoms, and the choice among CEA, stenting, TCAR, and medical therapy alone is individualized with your vascular surgeon and neurologist. Recovery is typically fast, but lifelong statin, antiplatelet, and blood-pressure control does the heavy lifting for long-term protection. A stroke itself is an emergency — use BE-FAST and call 911.
Medical disclaimer: This article is general education, not medical advice, and does not replace evaluation by a qualified clinician. Procedure eligibility, risks, and costs vary by individual and by institution; verify current figures and guidance. If you have stroke symptoms, call 911 immediately.
Sources
- MedlinePlus — Carotid artery surgery (medlineplus.gov)
- American Heart Association / American Stroke Association — Carotid artery disease and stroke warning signs (heart.org)
- NHLBI — Carotid Artery Disease (nhlbi.nih.gov)