What does transesophageal echocardiography (TEE) assess in atrial fibrillation patients?

Transesophageal echocardiography (TEE) is particularly useful in assessing the presence of heart clots, especially in patients with atrial fibrillation. Atrial fibrillation can lead to blood stasis in the left atrium, which creates a risk for thrombus formation, particularly in the left atrial appendage. TEE provides high-quality images of the heart's structures and can accurately visualize this area to detect any thrombi before procedures such as cardioversion.

While TEE can also provide information about heart valve function and other cardiac conditions, its primary and critical role in the context of atrial fibrillation is the assessment of thrombus presence. This distinction is crucial for managing anticoagulation therapy and evaluating the risks associated with potential procedures.