Thrombus Migration Resulting From Cessation of Cardiopulmonary Bypass Flow in a Patient With Left Ventricular Thrombus

• LV thrombus can cause embolism, requiring anticoagulation or thrombectomy. • Lowering CPB flow during aortic clamping risks LV thrombus entering circulation. • Adjusting CPB flow to keep the aortic valve closed on TEE may prevent embolism. • Increasing venous drainage to eliminate cardiac output may prevent embolism.