Red flag sign of ECG- Evolving high anterior wall myocardial infarction

Coronary artery disease including acute coronary syndrome is most common cause of mortality worldwide. Acute coronary syndrome which includes ST segment elevation myocardial infarction carries worse prognosis particularly when involves anterior wall of left ventricle. Anterior wall myocardial infarction diagnosed when ECG shows ST segment elevation in precordial leads is present. Depending upon site of occlusion in left anterior descending anterior artery and branches, anterior  wall myocardial can be high lateral, anteroseptal and extensive anterior wall myocardial infarction diagnosed with ECG.