The balloon is then inflated to widen the artery. A metal mesh tube (stent) is commonly inserted to lower the prospect of your artery narrowing again. New narrowing on the carotid artery (restenosis). An important downside 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/