Involves leads V1 and V2 , indicating the wall between the heart's chambers is affected. Strictly Anterior: Affects leads V3 and V4 .
Rare causes include coronary artery spasms, embolisms, or spontaneous coronary artery dissection (SCAD). Clinical Presentation and Symptoms anterior wall infarction
| Complication | Time Course | Clinical Clue | | :--- | :--- | :--- | | | Hours–days | Rales, elevated JVP, hypoxemia | | Cardiogenic Shock | 1–24 hours | SBP <90 mmHg, cool extremities, oliguria | | Apical Thrombus | 2–14 days | Systemic embolization (CVA, renal infarct) | | Ventricular Septal Rupture | 3–7 days | New harsh holosystolic murmur, thrill, acute RV failure | | Left Ventricular Aneurysm | Weeks–months | Persistent ST elevation, dyskinetic wall motion | | Ventricular Tachycardia / Fibrillation | First 48 hours | Palpitations, syncope, cardiac arrest | | Pericarditis (Dressler’s syndrome) | Weeks | Friction rub, pleuritic chest pain, fever | Involves leads V1 and V2 , indicating the
Clinicians use the 12-lead ECG to pinpoint exactly where the blockage is located along the LAD: Clinical Presentation and Symptoms | Complication | Time