Transcarotid artery revascularization (TCAR) is a minimally invasive surgical procedure used to treat carotid artery disease, which occurs when plaque builds up in the carotid arteries, potentially leading to stroke. TCAR involves making a small incision above the collarbone, inserting a catheter into the carotid artery, and placing a stent to improve blood flow while filtering out any debris to prevent stroke.