However, the second paragraph you give the 80-90 stenosis
of RCA which is non-dominant. What that means is that the right coronary
artery (RCA), which is the artery to the back of your heart has a 80-90% blockage, which is severe. HOWEVER, if it is non-dominant, it is a small artery that does not affect much of the heart muscle, and is something that often is not fixed with stent because the muscle affected is so small.