Table 1.

American Heart Association and American Stroke Association recommendations on carotid endarterectomy for carotid artery stenosis.

Stenosis (%)	Recommendations	Level of recommendations
Symptomatic stenosis
High grade (≥70%)	CEA by a surgeon with perioperative mortality rate <6%	Class I
		Level of evidence A
Moderate (≥50 and <70%)	CEA, depending on patient-specific factors such as age, sex, comorbidities and severity of symptoms	Class I
		Level of evidence A
Mild (<50%)	No indications for CEA	Class I
		Level of evidence A
Asymptomatic stenosis
High grade (≥60%)	CEA when performed by a surgeon with a perioperative mortality rate of <3%	Class I
		Level of evidence A

CEA: Carotid endarterectomy.

Data taken from [82].