Late Dislodgement of a Leadless Pacemaker: Potential Role of Impedance Decline as an Early Warning Sign. | Synapse
September 14, 2025
Late Dislodgement of a Leadless Pacemaker: Potential Role of Impedance Decline as an Early Warning Sign.
Key Points
Pacing failure occurred following significant changes in pacing impedance and threshold over the initial two weeks.
Impedance decreased sharply within one week, indicating a potential early warning sign for dislodgement risk.
The observation of threshold increase at the two-week mark raises concerns about device performance post-implantation.
The findings suggest monitoring impedance changes could help in timely intervention and device management.
Abstract
Pacing impedance declined rapidly 1 week after implantation, followed by a significant increase in threshold at the 2-week follow-up, resulting in pacing failure.