i have a LAD Vessel blocked at the begining. Dr. say it may be very old blockage and very good colleteral supply of blood is already developed hence dont do any thing to this. This colleteral is getting supply from RCA vessel. Now LCX which is blocked in middele Ballon was done and after 30days in check angiogram 65% to 70% blockage is still there. Hence Dr. adviced FFR test and if required a stunt to be put in LCX . Kindly give your sugession.