The ETT can be used to investigate coronary heart disease (sometimes called coronary artery disease). This disease is due to narrowing of the coronary arteries. It can cause a type of chest pain called angina as well as other problems. People who develop chest pain may be advised to have an ETT to help clarify the cause. However, newer investigations (eg, coronary angiography or myocardial perfusion scintigraphy) are now often used to diagnose coronary heart disease so exercise tolerance tests are less common, though they are still used.
This is a companion discussion topic for the original article at https://patient.info/heart-health/exercise-tolerance-testing-ett