When the carotid arteries become blocked with cholesterol plaques (atherosclerotic plaques), blood flow to the brain is compromised. Also, small pieces of plaque can break off and block small arteries in the brain. This blockage of the blood vessels can cause transient-ischemic attacks and strokes.
Review Date 8/7/2017
Updated by: Amit M. Shelat, DO, FACP, Attending Neurologist and Assistant Professor of Clinical Neurology, SUNY Stony Brook, School of Medicine, Stony Brook, NY. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.