Can coronary heart disease be detected by electrocardiogram (ECG)?

Coronary heart disease refers to coronary atherosclerotic heart disease. This condition can be detected through an electrocardiogram (ECG), with specific analysis as follows:

Coronary atherosclerotic heart disease is a type of ischemic heart disease caused by narrowing or blockage of the coronary arteries, leading to myocardial ischemia, hypoxia, or necrosis. It can cause a series of symptoms such as chest pain, chest tightness, and shortness of breath. During an episode, patients may undergo an ECG examination, which may show elevation or depression of the ST segment. The ECG can also provide evidence of previous or ongoing myocardial infarction. However, diagnosis cannot rely solely on ECG findings; additional tests are required, including blood tests, echocardiography, coronary CT angiography, and coronary angiography.

Once diagnosed with coronary atherosclerotic heart disease, patients should immediately begin medication under a doctor's guidance to control disease progression. If symptoms are severe, surgical treatment such as coronary artery bypass grafting (CABG) may be necessary.