Stroke is the fifth leading cause of death in the United States, and roughly 20 percent of strokes are caused by narrowing of the carotid arteries in the neck. About 100,000 carotid procedures are performed each year, with the goal of preventing future strokes rather than treating active ones. 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, and how to weigh surgery against stenting and medical therapy alone.
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 unilaterally; bilateral procedures are typically staged.
Per the American Heart Association, indications include symptomatic carotid stenosis of 70 to 99 percent (TIA or non-disabling stroke caused by the lesion within the past 6 months), and asymptomatic stenosis of 70 percent or greater in selected patients with adequate life expectancy. Stenosis less than 50 percent is generally treated with medical therapy alone. For broader stroke and vascular background, see our Medical Conditions guide.
How the Procedure Is Performed
Carotid endarterectomy typically takes one to two hours under general or regional anesthesia. Some surgeons prefer awake regional anesthesia (cervical plexus block) so the patient can be assessed neurologically during temporary clamping of the artery. The surgeon makes a 3 to 4 inch incision along the front of the neck, exposes the carotid bifurcation, clamps the artery temporarily, and opens it longitudinally. The plaque is dissected out as a single piece. The artery is then closed, often with a patch (vein, prosthetic) to widen the lumen.
A 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 debris. Per Cleveland Clinic, hospital stay after CEA is typically one to two days. Transcarotid artery revascularization (TCAR) is a newer hybrid approach that combines features of surgery and stenting.
Preparation and What to Expect on the Day
Preoperative preparation includes 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 often have coronary disease. Antiplatelet therapy (typically aspirin) is continued through surgery. Blood pressure management is critical to reduce both stroke and hemorrhage risk.
On surgery day, expect to be at the hospital for most of the day. Patients are awake or asleep depending on anesthesia choice. After surgery, frequent neurologic assessments check for stroke or cranial nerve injury. Most patients are out of bed the same day and discharged the next morning. The neck incision heals well with minimal scar in most cases.
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. 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 femoral access site requiring three to seven days of restricted heavy lifting. After both procedures, ongoing risk-factor management is essential. NHLBI emphasizes statin therapy, antiplatelet medication, blood pressure control, smoking cessation, and diabetes management to reduce future stroke and cardiovascular events.
Risks, Complications, and Outcomes
Carotid endarterectomy reduces long-term stroke risk substantially in properly selected patients but carries procedural risk. Perioperative stroke or death rates are 1 to 3 percent for asymptomatic patients and 3 to 6 percent for symptomatic patients in experienced centers. Other risks include cranial nerve injury (3 to 5 percent, usually transient), hematoma (1 to 3 percent), infection, restenosis (5 to 10 percent at 5 years), and rare hyperperfusion syndrome with hemorrhage. Carotid stenting has a slightly higher periprocedural stroke risk and a lower cranial nerve injury rate compared with surgery.
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 severe headache (especially after the procedure, which may indicate hyperperfusion), expanding neck swelling or breathing difficulty (suggestive of 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 intervention. Stenosis 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 selectively treated in symptomatic patients. Optimal medical therapy includes a high-intensity statin, antiplatelet therapy (aspirin or clopidogrel), blood pressure control to under 130/80, diabetes control, and smoking cessation.
The optimal procedure choice (CEA vs CAS vs TCAR) depends on anatomy, age, symptom status, and surgical risk. CEA has stronger long-term evidence, while stenting has fewer cardiac complications and faster recovery. Carotid stenting is often preferred for patients with a hostile neck (prior radiation, prior surgery), high lesions, or significant cardiac comorbidity. Patients also evaluating other cardiovascular procedures may benefit from our guides on coronary bypass surgery and angioplasty, since vascular disease is often diffuse.
Cost Considerations
Carotid endarterectomy billed costs typically range from $25,000 to $60,000 without insurance. Carotid stenting runs $30,000 to $70,000 due to device costs. Medicare averages $10,000 to $18,000 in payments for endarterectomy. Insured patients commonly pay $1,500 to $5,000 out of pocket. The hospital component accounts for the majority of cost. For broader cost-shopping advice, see our healthcare costs guide.
Frequently Asked Questions
Carotid endarterectomy vs stenting: which is better?
For most patients with significant carotid stenosis, both procedures produce similar long-term stroke prevention. CEA has slightly lower periprocedural stroke risk and stronger long-term data. CAS has fewer cardiac complications and faster recovery. The choice depends on anatomy, age, and overall surgical risk.
How long is recovery from carotid endarterectomy?
Most patients return to desk work within one to two weeks. Driving resumes within one to two weeks. Heavy lifting is avoided for two to four weeks. Most patients 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 5 to 10 percent of patients within 5 years. Restenosis is more common with stenting. Aggressive medical therapy with high-intensity statin and antiplatelet therapy reduces this risk. Repeat duplex ultrasounds monitor for recurrence.
Will the surgery affect my voice or swallowing?
Cranial nerve injury occurs in 3 to 5 percent of patients and usually causes transient hoarseness, mild swallowing difficulty, or tongue weakness. Most cases resolve within 6 to 12 weeks. Permanent injury is uncommon (less than 1 percent).
What to Discuss With Your Surgeon
Carotid endarterectomy is a preventive procedure with strong evidence in properly selected patients. Bring questions about the degree of stenosis, symptomatic vs asymptomatic status, the surgeon’s annual volume, and stroke and death rates at the institution. The expected procedural risk should be 3 percent or lower for asymptomatic patients and 6 percent or lower for symptomatic patients to justify benefit. Also discuss whether stenting or TCAR is appropriate for your anatomy. After any carotid procedure, lifelong medical therapy with statin, antiplatelet medication, and blood pressure control is what prevents future strokes more than the procedure itself.