In patients with chronic stable angina, exercise ECG is more sensitive and specific to identify inducible ischemia and to diagnose coronary artery disease. ECG abnormalities associated with MI include: down sloping of ST-segment depression or elevation, accompanying angina that occurs at a low workload during early stages of exercise and persistent for more than 3-minutes after exercise. The reliability of diagnosis is shown to improve with the evaluation of ST changes in relation to heart rate. Bruce protocol or treadmill (expressed in terms of METs) or bicycle ergometer (expressed in terms of watts) are used to detect MI. Exercise ECG test must be terminated on the achievement of maximal predicted heart rate and/or if the patient becomes symptomatic or develops pain with significant ST-segment changes. Exercise ECG test also provides prognostic stratification to evaluate the response to medical therapy or revascularization.
Chronic stable angina exercise electrocardiography
Chronic stable angina exercise echocardiography
Chronic stable angina electrocardiography
Chronic stable angina cardiac magnetic resonance imaging
Chronic stable angina electron beam tomography
Chronic stable angina coronary angiography
Chronic stable angina echocardiography
Chronic stable angina ambulatory ST segment monitoring