Question: what is the difference between st segment elevation and depression?
Answer: Subendocardial means non full thickness ischemia. In contrast, ST elevation is transmural (or full thickness) ischemia. Non Q-wave myocardial infarction. Reciprocal changes in acute Q-wave myocardial infarction (e.g., ST depression in leads I & aVL with acute inferior myocardial infarction)