because we previously demonstrated a strong relation between degree of carotid stenosis and subsequent development of ipsilateral related events ( stroke , transient ischemic attack , and carotid occlusion ) , we changed our previous policy and began to offer carotid endarterectomy to good surgical risk patients referred to us with asymptomatic high-grade carotid stenosis .
C0038454
stroke
C0007787
transient ischemic attack