Prognostic Value of ST Elevations in Myocardial Infarction

Anterior location of STE (anterior AMI) compared with inferior or lateral, correlates with much worse prognosis and greater benefit of reperfusion therapy

Patients with anterior infarction demonstrated a lower left ventricular ejection fraction on admission and after 10 days than did patients with inferior infarction, even after adjustment for infarct size, as well as a higher incidence of congestive heart failure and cumulative cardiac mortality.

Reference:
1. Chan TC, Brady WJ, Harrigan RA et al. ECG in Emergency Medicine and Acute Care. 1st ed. Pennsylvania: Elsevier Mosby; 2005.

2. Stone PH, Raabe DS, Jaffe AS et al. Prognostic significance of location and type of myocardial infarction: independent adverse outcome associated with anterior location. J Am Coll Cardiol 1988; 11 (3):453-63.