Would you perform carotid artery stenting with embolic protection in an 80 year old man with an asymptomatic, 80-99%, unilateral internal carotid artery stenosis?
Always, if the anatomy can be negotiated.
28%
Never.
28%
Only in a clinical registry or trial.
18%
Only if transcranial Doppler (TCD) detects cerebral emboli, denoting high risk for adverse neurological events.
16%
Refer for carotid endarterectomy if not surgically high-risk.
28% 
