Post-procedure, what diagnostic tool is frequently used to assess LAAO?

The use of Transesophageal Echocardiography (TEE) as a diagnostic tool following a Left Atrial Appendage Occlusion (LAAO) procedure is crucial due to its ability to provide a detailed imaging of the heart structures, particularly the left atrial appendage. TEE offers superior visualization compared to other imaging modalities, allowing for assessment of the occluder device's position, effectiveness in sealing off the appendage, and any potential complications such as pericardial effusion or device-related thrombus formation.

While echocardiograms can assess cardiac function and structure, TEE's proximity to the heart and higher resolution make it exceptional for this specific purpose. Magnetic Resonance Imaging and Computed Tomography, although useful in other contexts, are less commonly employed for post-LAAO assessment due to factors like accessibility, the need for sedation, or less direct imaging of the left atrial appendage compared to TEE. Thus, TEE is the preferred choice for monitoring and evaluating patients after LAAO procedures.