The balloon is then inflated to widen the artery. A steel mesh tube (stent) is frequently inserted to minimize the chance with the artery narrowing again. New narrowing from the carotid artery (restenosis). A significant drawback of carotid angioplasty is the chance that your artery will narrow all over again https://www.sgvascularctr.com/revealing-the-latest-innovations-in-carotid-artery-disease-treatment/