electrocardiographic changes
Abnormal patterns on ECG tracings that indicate cardiac pathology or dysfunction.
Full Definition
Deviations from normal electrical activity patterns recorded on the electrocardiogram, which may indicate acute or chronic cardiac conditions. Common pathological changes include ST-segment elevation or depression, T-wave inversions, Q-wave formation, arrhythmias, and conduction abnormalities. These changes must be interpreted in clinical context and may evolve over time, particularly in acute coronary syndromes. Serial ECG monitoring helps track disease progression and treatment response in various cardiac conditions.
Usage
Usage note: Use full form 'electrocardiographic' in formal reports; 'ECG changes' acceptable in clinical notes.
In Context
- "Serial electrocardiographic changes showed evolution from ST-elevation to Q-wave formation." — Cardiology progress note
- "The patient's electrocardiographic changes were consistent with posterior wall myocardial infarction." — Emergency department assessment