What position should the TEE transducer be closest to during LAA procedures?

The TEE transducer should be positioned closest to the left atrium during LAA procedures because this positioning allows for optimal visualization of the Left Atrial Appendage (LAA). The LAA is an important structure in the context of thromboembolic risk, particularly in patients with atrial fibrillation.

By having the transducer closest to the left atrium, clinicians can assess the anatomy and hemodynamics of the LAA more effectively. This is critical for accurately positioning devices used for occlusion and ensuring successful interventions. Proper visualization can help identify the size and shape of the LAA, any existing thrombi, and relevant anatomical relations that might affect the procedure.

In addition, monitoring for potential complications during the procedure is enhanced with this positioning, making it a critical aspect of the LAAO process. Proper views of the left atrium also support the team in confirming the placement and deployment of occlusion devices like the Watchman or other LAA closure devices.