Inferior wall myocardial infarction (MI) occurs from a coronary artery occlusion with resultant decreased perfusion to that region of the myocardium. Unless there is timely treatment, this results in myocardial ischemia followed by infarction. In most patients, the inferior myocardium is supplied by the right coronary artery. In about 6-10% of the population, because of left dominance, the left circumflex will supply the posterior descending coronary artery. Approximately 40% of all MIs involve the inferior wall. Traditionally, inferior MIs have a better prognosis than those in other regions, such as the anterior wall of the heart. The mortality rate of an inferior wall MI is less than 10%. However, several complicating factors that increase mortality, including right ventricular infarction, hypotension, bradycardia heart block, and cardiogenic shock.[1][2][3]