Figure 1.

A, B: An Aveir VR leadless pacemaker (LP) (Abbott, Chicago, IL) was deployed onto the apical septum, but it was recaptured because of an unacceptable pacing threshold. C: The protective sleeve could not be advanced beyond the middle of the LP. D: The sleeve could no longer be advanced beyond the docking cap after counterclockwise rotation, and the catheter could not be retrieved. E: The catheter remained stuck, and the LP was dislodged after its release. F: The LP was successfully retrieved using an Aveir retrieval catheter. G, H: Another Aveir LP was successfully implanted after the LP that had migrated was retrieved.