Myocardial Infarction (Heart Attack)
Coronary flow obstruction and myocardial tissue necrosis
Educational content only — not medical advice.
Anatomy
Crushing retrosternal chest pain radiating to left arm or jaw, severe dyspnea, diaphoresis, nausea.
Action
Atheromatous plaque rupture triggers thrombus formation occluding coronary artery lumen, causing ischemia and rapid myocardial necrosis.
Clinical notes
Immediate medical emergency requiring reperfusion therapy (primary PCI or thrombolysis) to rescue viable left ventricular myocardium.