Figure 3.

In vitro experiments were performed to replicate the Aveir (Abbott, Chicago, IL) delivery catheter becoming caught on and reeling in the porcine tricuspid valve (TV) leaflet. A: The porcine TV leaflet was tightly caught between the docking cap and leadless pacemaker. B: The protective sleeve could not be advanced beyond the middle of the device. C: The catheter began to reel in the leaflet with counterclockwise rotation; however, the pacemaker was successfully released from the myocardium. D: Compared to that before the counterclockwise rotation, the protective sleeve could be advanced even less.