Stents operate most effective in significant arteries with large move (iliac and renal); They are really less practical for more compact arteries and for lengthy occlusions. When atherosclerosis narrows the arteries, blood has a tendency to clot inside the narrowed parts, forming a thrombus, a style of blood clot (plural https://www.sgvascularctr.com/types-of-treatments-for-vascular-diseases/