From: Contemporary incidence and risk factors for carotid artery disease in patients referred for coronary artery bypass surgery
Degree of Stenosis
CABG (n=559)
Mild/None
359 (64%)
Stenosis >50%
200 (36%)
Unilateral Moderate
98 (18%)
Bilateral Moderate
53 (9.4%)
Unilateral Severe/Occluded
20 (3.5%)
Bilateral Moderate & Severe
15 (2.6%)
Bilateral Severe
14 (2.5%)