Minimal Criteria For Anterior Infarct Are No Longer Present [exclusive] -

When these findings appear, they trigger a "Code STEMI" or an urgent consult in many institutions. However, the ECG is a snapshot in time. What happens when the next snapshot changes?

| Condition | How it masks anterior infarct | |-----------|-------------------------------| | LBBB | Loss of septal Q; broad R in V5–V6 | | RBBB | rsR’ in V1; deep S in V5–V6 | | LVH | Tall R waves in V5–V6; poor R wave progression mimics infarct | | WPW | Delta wave alters initial QRS forces | | COPD | Low voltage; vertical heart; late transition | minimal criteria for anterior infarct are no longer present