North American Symptomatic Carotid Endarterectomy Trial "NASCET"

Completed

Phase 3 Results

Eligibility Criteria

Inclusion Criteria

Hemispheric or retinal transient ischemic attack or a nondisabling stroke within 120 days of entry.

Exclusion Criteria

Failure to provide informed consent, lack of angiographic visualization of the symptomatic artery, intracranial stenosis more clinically significant than cervical lesion, other disease limiting life expectancy to less than 5 years, cerebral infarction eliminating useful function in the affected arterial territory, nonartherosclerotic carotid disease, cardiac lesions likely to cause cardioembolism, history of ipsilateral endarterectomy.