Role of carotid endarterectomy in asymptomatic carotid stenosis: a Veterans Administration Cooperative Study.


Phase N/A Results

Eligibility Criteria

Inclusion Criteria

Asymptomatic carotid stenosis shown arteriographically to reduce the diameter of the arterial lumen by 50 percent or more.

Exclusion Criteria

Previous cerebral infarction (Group III) only, previous endarterectomy with re-stenosis, previous EC/IC bypass, high surgical risk due to associated medical illness, chronic anticoagulant therapy, aspirin intolerance, life expectancy <5 years, non-compliance and refusal.