Table 1: Anatomical factors, Pathophysiological factors among CAS candidates and CEA candidates.
CAS candidates CEA candidates
Anatomical factors Lesion above C2 lipid-rich soft plaque
Below collarbone injury further injury to 15 mm
Reoperation after previous CEA preocclusive injury
Cervical stoma severe circumferential Calcification
Previous cervical radiotherapy aorto-iliac tortuosity
Previous ablative cervical surgery Great angulation of the aortic arch and carotid artery
heavily calcified aortic arch or with severe atherosclerosis
Pathophysiological factors Heart disease Patient over 80 years
Contralateral vocal cord paralysis