A Novel Measurement of Percutaneous Left Atrial Appendage Occlusion Device Peri‐Device Leak Using Major and Minor Axes of a Three‐Dimensional Vena Contracta Area

3D TEE is useful in distinguishing punctate leaks from crescentic leaks and highlights the fact that leaks cannot be assumed to be uniform in morphology. Given the elevated thromboembolic risks with PDLs, it is reasonable to add 3D TEE imaging to the routine implantation and monitoring of LAAO devices.