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