Anterior Infarction Ecg _verified_ [FREE]

| | ECG Clue | | :--- | :--- | | Early Repolarization | ST elevation is concave (smiling), not convex. Notching at J point. Prominent T waves. Stable over time. | | Acute Pericarditis | Diffuse ST elevation (I, II, III, aVF, V2-V6) with PR depression. Concave morphology. No reciprocal changes. | | Left Ventricular Aneurysm | Persistent ST elevation with deep Q waves. No evolutionary changes (stable over months/years). | | Left Bundle Branch Block (LBBB) | Discordant ST elevation (elevation in leads with negative QRS). Use Smith-Modified Sgarbossa criteria. | | Hyperkalemia | Peaked T waves but ST elevation rare unless severe. Wide QRS. |

| | Anatomical Region | LAD Segment | | :--- | :--- | :--- | | V1 - V2 | Septal wall | Proximal LAD (before first septal branch) | | V3 - V4 | True anterior wall | Mid LAD | | V5 - V6 | Apical / Lateral wall | Distal LAD or diagonal branches | | I, aVL | High lateral wall | First diagonal branch (proximal LAD) | anterior infarction ecg