Carotid angioplasty and stenting (CAS)
Carotid angioplasty is a treatment for carotid artery disease – a procedure performed on carotid arteries when they become clogged or narrowed by an atherosclerotic plaque. The procedure involves the placement of an antiembolic protection filter past the narrowing, followed by the placement of a nitinol-stent at the level of the narrowing. The stent maintains the artery open and prevents it from narrowing again. Carotid angioplasty is an alternative to open surgery, being used when the traditional surgical procedures are not feasible or pose a high risk.