CEA or CAS — this decision should never be made in haste. The right choice can reduce stroke risk significantly. The wrong one can cause the stroke you were trying to prevent.
Written by Dr Rahul Agarwal, Consultant Vascular & Endovascular Surgeon
CARE Hospitals, Banjara Hills, Hyderabad
💉 Carotid Endarterectomy (CEA)
Gold standard since the 1990s NASCET trials. The surgeon opens the neck, removes plaque from inside the carotid, and closes with a patch. Best for symptomatic patients with standard anatomy.
🦧 Carotid Artery Stenting (CAS)
Catheter threaded from groin, distal protection device deployed, stent placed across the stenosis — no neck incision. Preferred for high-risk surgical patients, hostile necks (post-radiation, previous surgery), or very high carotid bifurcation.
📊 The Evidence
CREST and ICSS trials show CEA has lower 30-day stroke risk than CAS in symptomatic patients. Decision must involve a multidisciplinary team.
❓ FAQ
How urgent is intervention after a TIA (transient ischemic attack)?
CEA benefit is greatest within 2 weeks of TIA. Seek vascular surgery review within 48–72 hours — do not wait.
Can I be awake during CEA?
Yes — regional anaesthesia allows real-time neurological monitoring during clamping. Both approaches are safe in experienced hands.
💡 Key Insight: In most symptomatic patients, CEA by an experienced surgeon carries a stroke risk under 3% — versus a 15–25% two-year stroke risk from untreated stenosis. The benefit is large and evidence-based.
📖 Related: Carotid Artery Disease & Stroke Prevention | The Complete Guide to Vascular Surgery
About the Author 🧑🏻⚕️
Dr Rahul Agarwal is a Consultant Vascular & Endovascular Surgeon at CARE Hospitals, Banjara Hills, Hyderabad.