Hello Welcome to Ask a Doctor service. I have reviewed your query and here is my advice. If the lesion is confirmed (Block) then no need to go for second opinion, now you need to think about the next procedure, three option are there first and best change the life style, minimize the risk factor like stress, obesity, smoking, avoid high calorie diet, regular follow up, controlling high blood pressure, and other medication for all of these you have to see the cardiac disease counsellor and dietitian, second is stent placement, and third is CABG, over clinical condition matters the great. Hope I have answered your query, let me know for further assistance,