Hi, My father is 73 years old, 155cm ht and 51kg wt. One of his arteries, CAD (left one) is 100% blocked. Other 2 arteries are fine, no blocks. BP normal, no sugar, no cholestrol. Pure vegiterian and no vices. His creatinine is 1.5 (constant for the past 4-6 months. His daily activities are generally limited. Can we manage only through medicine. If so how long? Thanks