Cardiac thrombus caught embolizing in action

Left ventricular thrombus (LVT) is a blood clot (thrombus) in the left ventricle of the heart. LVT is a common complication of acute myocardial infarction (AMI). Typically the clot is a mural thrombus, meaning it is on the wall of the ventricle.

The primary risk of LVT is the occurrence of cardiac embolism, in which the thrombus detaches from the ventricular wall and travels through the circulation and blocks blood vessels.

Blockage can be especially damaging in the heart (infarction) or brain (stroke).