Fig. 1

The procedure of CAS (A) and CEA (B) are illustrated. Briefly, the carotid angiography (A1) showing the stenosis at the origin of the internal carotid artery, then in (A2) the placement of the stent with resolution of the stenosis. In (B1), the carotid bifurcation is exposed after a laterocervical longitudinal incision, then after clamping the bifurcation is opened (B2), the plaque is removed (B3) and then the flow is restored after surgical closure of the arteriotomy (B4).