What does moderate ST segment elevation mean?

Moderate ST-segment elevation typically refers to the ST segment being elevated above the baseline level.

The ST segment represents the phase of slow ventricular repolarization. Under normal circumstances, the ST segment is mostly an isoelectric line, although slight deviations may occasionally occur, which are generally not significant. Moderate ST-segment elevation is relatively commonly observed in electrocardiogram (ECG) results and usually indicates that the ST segment is elevated above the baseline. This finding may suggest the presence of certain signs of myocardial infarction, such as acute myocardial infarction, variant angina, acute myocardial ischemia, or acute myocarditis. When this occurs, patients should be vigilant and are advised to promptly undergo further evaluation to determine the underlying cause, followed by appropriate treatment based on diagnostic findings, to prevent more serious impacts on health.

When undergoing an ECG examination, patients should maintain a calm emotional state, avoid excessive anxiety, and refrain from strenuous exercise before the test to prevent interference with the ECG recording and ensure accurate results.