ECG features refer to the specific patterns and measurements observed on an electrocardiogram, including waveforms, intervals, and segments that reflect the electrical activity of the heart. Understanding these features is crucial in diagnosing various cardiac conditions, such as arrhythmias, myocardial infarction, and electrolyte imbalances. For instance, ST-segment elevation is a key indicator of acute coronary syndrome, guiding urgent therapeutic interventions.

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