“Caution is advised in patients with known inferior wall STEMI, and a right-sided ECG should be performed to evaluate RV infarction.”
**2010 American Heart Association Guidelines for Cardiopulmonary Resuscitation and Emergency Cardiovascular Care Science**
Real-time 18-lead ECG sampling brings straightforward information on right precordial and posterior wall, where doctor could find the accurate location of the Myocardial Infarction or Ischemia, especially if the culprit lesion is in the left circumflex artery (LCA) and right ventricular ischemia associated with proximal right coronary artery(RCA).