Which have absolutely blocked arteries as the physique could have produced collateral circulation that bypasses the blockage Carotid artery disease is A serious danger factor for vascular dementia and stroke, which it might cause in two methods. 1st, a carotid artery blockage can prevent the circulation of freshly oxygenated blood https://www.sgvascularctr.com/treating-carotid-artery-disease-an-overview-of-treatment-options-in-singapore/