Carotid stenting

Carotid artery stenting (CAS) is an endovascular surgery where a stent is deployed within the lumen of the carotid artery to prevent a stroke by treating narrowing of the carotid artery. CAS is used to treat narrowing of the carotid artery in high-risk patients, when carotid endarterectomy is considered too risky. Carotid artery stenosis can present with no symptoms or with symptoms such as transient ischemic attacks (TIAs) or strokes.