Hi, I am 66 years old and I have done ct/angio/stress talium test in 2017. From ct and angio it was revealed that lmca has 40%, and other two - rca has 80% and lca has 50-60%. Except for sugar, I have no bp problems and cholesterol is under control and in range. When should be the next stress thallium test/ct after how many years. Recently (2019) a doctor (without going into history/checking reports properly) suggested bypass - totally in contrast to what other doctors have suggested in 2017 staying that plaques are hard and calcified and medicines are sufficient as treatment. When should be the next stress /ct test? Blood reports are normal and am working to get hba1c under 8.5, currently it is 9.