best cardiac doctors near me An LV (left ventricle) clot in the heart refers to the formation of a thrombus (blood clot) within the left ventricle, which is one of the heart’s chambers responsible for pumping oxygenated blood to the body. This condition can be serious, as it increases the risk of embolism (where the clot breaks off and travels to other parts of the boSymptoms: Chest pain or discomfort. Shortness of breath. Fatigue or weakness. Symptoms of embolism, such as sudden weakness or numbness in the limbs (in case of stroke). Diagnosis:dy),