What complication is associated with a swan-shaped LAA?

A swan-shaped left atrial appendage (LAA) refers to a specific anatomical configuration that can influence hemodynamics and the risk of thrombus formation. In particular, this shape can lead to stagnant blood flow and recirculation within the appendage.

When blood flow is disturbed, as can occur with a swan-shaped LAA, there's an increased risk of blood pooling. This stagnant blood can create an environment conducive to thrombus (blood clot) formation, thus raising the likelihood of embolic events, such as strokes, particularly in patients with atrial fibrillation.

The choice regarding the higher likelihood of thrombus formation accurately reflects the increased risk associated with this anatomical configuration, which is a critical consideration in the management of patients who may be candidates for left atrial appendage occlusion (LAAO) procedures. Understanding these risks is essential for clinicians when evaluating the potential benefits of intervention in patients with this type of LAA morphology.