I was admitted to hospital a week ago with symptom of ghabrahat from last 2 days. On several check up in hospital, I am diagnosed non diabetic, non hypertensive, non smoker. My coronary angiography was done which shows single vessel disease for which stress thallium was done and advised medical therapy. Discharge summary says final diagnosis - cad- actuate coronary syndrome, nsr- no ccf, b12 deficiency. cholesterol total - 207, triglycerides - 151, hdl - 45, ldl - 136, vldl - 26, hdl ratio - 4.60.coronary angiography report says - left main, lad,lcx are normal and rca - dominant, 80% distal stenosis, jerky movement at lesion site. Stress myocardial perfusion imaging shows global resting lvef - 56 +- 5 % with impression adequate stress and good effort tolerance, no scan evidence of stress induced reversible ischemia noted jn lv myocardium, normal resting systolic lv function with no rwma as estimated by quantitative gated spect. Stress total severity score - 23, rest total severity score - 52, reversibility total severity score - 0.tab ceruvin a 75 mg, tab rosuvas 20 mg, tab me 12 was advised. I want to know what medical procedure should we continue? Should we go for angioplasty/stent or should continue with medicine to clear the blockages? If you want I can send the report to you.