Carotid Stenosis · Medical vs CEA vs Stenting

Step-by-step decision

Choose step by step as prompted; reaching an endpoint gives the management recommendation. You can go back a step or restart anytime.

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Full pathway

1. [Decision] Symptomatic? + degree of stenosis
   Symptomatic (TIA/stroke/amaurosis within 6 months)? + degree of stenosis? (Stenosis measured by the NASCET method. All patients receive best medical therapy.)
   • Symptomatic, stenosis ≥50% → Symptomatic ≥50% · early revascularization
   • Asymptomatic, stenosis ≥60–70% with high stroke risk and low surgical risk → Asymptomatic high-risk → CEA
   • Symptomatic <50% or asymptomatic <60% (or high-risk/short life expectancy) → Best medical therapy
2. [End] Best medical therapy
   Best medical therapy: antiplatelet + statin + BP control + smoking cessation + glycemic control; symptomatic <50% or low-risk asymptomatic do not undergo revascularization, with periodic imaging surveillance.
3. [Decision] Symptomatic ≥50% · early revascularization
   CEA or CAS? (Revascularization as soon as possible after symptoms (once stable >48 h, within <14 days) gives the greatest benefit.)
   • Carotid endarterectomy CEA (preferred for most, especially >70 y/early) → Carotid endarterectomy (CEA)
   • Carotid stenting CAS (<70 y/unfavorable anatomy/neck radiation or post-surgery/high cardiac risk) → Carotid stenting (CAS)
4. [End] Asymptomatic high-risk → CEA
   Asymptomatic ≥60–70% + high stroke risk + low surgical risk → CEA (with best medical therapy) over medical therapy alone; CAS is not a routine alternative for asymptomatic patients; individualize and weigh carefully.
5. [End] Carotid endarterectomy (CEA)
   CEA — preferred for most, especially >70 years and within 14 days of symptoms; low perioperative stroke/MI risk; combined with best medical therapy.
6. [End] Carotid stenting (CAS)
   CAS — for <70 years, CEA-unfavorable anatomy (high lesion/neck radiation or post-surgery/contralateral laryngeal nerve palsy), high cardiac risk; needs an embolic protection device.

Source guidelines & references

• Carotid endarterectomy and stenting (ESO 2021 guideline; SVS; NASCET)

This pathway is our own synthesis of the decision logic in the guidelines above (not the guideline verbatim); thresholds and workflows change as guidelines update — in practice follow the latest guideline, your institution's protocol and the individual patient.

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