Acute Coronary Syndrome

Highway Clot Causes Traffic Jam and Engine Damage

Imagine a major highway (coronary artery) delivering fuel (oxygen) nonstop to a factory's engine (heart muscle) that runs twenty-four hours a day and burns almost all the fuel on the first pass—no backup tank. A pothole (atherosclerotic plaque) has been widening for years from constant tire friction (blood pressure stress). One day the pavement cracks open (plaque rupture), exposing the crumbly base, and road workers' repair tape (platelets) immediately sticks to the crack. More tape piles up until it blocks half or all the lanes (thrombus formation). The delivery trucks cannot get through, and the factory's engine starts running on fumes (anaerobic metabolism). Within minutes the engine misfires and shuts down (ischemic muscle stops contracting), warning lights flash (ST changes on EKG), and engine oil starts leaking (troponin in blood). If the blockage is not cleared within hours, the engine seizes permanently (infarction and scar tissue).