Left ventricular thrombosis, wall motion abnormalities, and blood viscosity changes after first transmural anterior myocardial infarction.

Sixty-three consecutive patients with a first transmural anterior myocardial infarction (MI) were studied by serial two-dimensional echocardiography (2D echo) to relate left ventricular (LV) thrombosis with serial changes in blood and plasma viscosity and fibrinogen levels, and wall motion abnormalities at the thrombus site, in order to identify those prone to this complication. The results suggest that an early 2D echo be performed in all patients with acute transmural anterior MI to detect LV thrombi and to identify those at risk of thrombosis.