Preventative surgery after stroke
The two carotid arteries are found in either side of the neck. If they are found to be severely blocked (occluded) there is a surgical procedure called carotid endarterectomy which can be performed to clear the debris and reduce the risk of a future stroke.
Carotid surgery is only considered for patients with severe blockages (more than 70% occlusion) due to risk that surgical procedures carry.
Both carotid arteries can require surgery but they would not be operated on at the same time. As this operation carries its own risks it will only be considered by specialist surgeons for people who are considered fit enough. These issues have to be carefully discussed before making a decision to have surgery.