This paper aims to demystify this ECG finding by analyzing the electrophysiological mechanisms behind Q-wave formation, distinguishing true infarction from anatomical and physiological mimics, and outlining a rational approach to patient management.
“ECG shows Q waves in leads V3–V6, I, and aVL consistent with anterolateral infarct. Age cannot be determined from this single ECG. No acute ST elevations. Troponin pending. Prior ECG requested. Patient denies current chest pain. Will correlate clinically.” anterolateral infarct age undetermined
The ECG interpretation "anterolateral infarct of undetermined age" serves as a vital red flag but lacks the specificity required for immediate therapeutic decision-making. It represents a spectrum of possibilities ranging from a silent, ancient scar to a completed sub-acute infarction, or even a non-ischemic structural heart disease. This paper aims to demystify this ECG finding