Endarterectomy for Stenosis of Less Than 50% Without Symptoms
Research shows that there is no benefit to having
endarterectomy if you have less than 50% stenosis (narrowing) and no symptoms,
such as a previous TIA or mild stroke.1
People in this group do not benefit from endarterectomy and actually increase
their risk of stroke or death from surgery because of complications of the
procedure. For people with less than 50% stenosis who do not have symptoms, the
American Heart Association guidelines recommend treatment with
Since this group is
already at a lower risk for stroke than those with a higher degree of stenosis,
surgery would not likely further reduce that risk but would instead introduce
new risks associated with surgery.
Most people know that cardiovascular disease can run in families -- that if
you have a family history of heart disease, you may be at greater risk for
heart attack, stroke, and other heart problems. But how much does family
history affect your heart health? What parts of the family tree are most
important? And what can you do about it?
North American Symptomatic Carotid Endarterectomy Trial
Collaborators (1991). Beneficial effect of carotid endarterectomy in
symptomatic patients with high-grade carotid stenosis. New England Journal of Medicine, 325(7): 445-453.
Biller J, et al. (1998). Guidelines for carotid
endarterectomy: A statement for healthcare professionals from a special writing
group of the Stroke Council of the American Heart Association. Circulation, 97(5): 501-509.
Primary Medical Reviewer
E. Gregory Thompson, MD - Internal Medicine
Specialist Medical Reviewer
Richard D. Zorowitz, MD - Physical Medicine and Rehabilitation
January 7, 2011
WebMD Medical Reference from Healthwise
January 07, 2011
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