Key result
Aveir DR leadless pacemaker shows compensatory mode switches during i2i communication loss in a transplant patient.
Why the study?
Due to novel programming and function of dual-chamber leadless pacemakers, clinicians must recognize and interpret previously undescribed ECG patterns to distinguish normal from abnormal pacemaker behavior.
Case Report (n=1)
This case highlights the need for clinicians to recognize novel ECG patterns associated with compensatory pacing mode switches in dual-chamber leadless pacemakers to distinguish normal from abnormal behavior.
May aid ECG pattern recognition with dual-chamber leadless pacemakers; hypothesis-generating for communication reliability in heart transplant recipients.
Key Teaching Points•The Abbott Aveir DR is the first and only dual-chamber leadless pacemaker available for implantation. The atrial and ventricular leadless pacemakers are paired with implant-to-implant (i2i) communication, which occurs beat-by-beat via wireless transmission of subthreshold electrical signals.•With loss and recovery of i2i communication, there are compensatory switches in functional pacing modes that occur beat-by-beat to maintain atrioventricular synchrony (atrial tracking and/or pacing) when possible and provide uninterrupted ventricular demand pacing.•We present an electrocardiogram from the first reported patient post–orthotopic heart transplant who received the Aveir DR, demonstrating changes in functional pacing modes during the intermittent loss of ventricular-to-atrial i2i communication.•Owing to novel programming and function of dual-chamber leadless pacemakers, clinicians must recognize and interpret previously undescribed ECG patterns to distinguish normal vs abnormal pacemaker behavior. •The Abbott Aveir DR is the first and only dual-chamber leadless pacemaker available for implantation. The atrial and ventricular leadless pacemakers are paired with implant-to-implant (i2i) communication, which occurs beat-by-beat via wireless transmission of subthreshold electrical signals.•With loss and recovery of i2i communication, there are compensatory switches in functional pacing modes that occur beat-by-beat to maintain atrioventricular synchrony (atrial tracking and/or pacing) when possible and provide uninterrupted ventricular demand pacing.•We present an electrocardiogram from the first reported patient post–orthotopic heart transplant who received the Aveir DR, demonstrating changes in functional pacing modes during the intermittent loss of ventricular-to-atrial i2i communication.•Owing to novel programming and function of dual-chamber leadless pacemakers, clinicians must recognize and interpret previously undescribed ECG patterns to distinguish normal vs abnormal pacemaker behavior.
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Kaptein et al. (2023) conducted a case report in Orthotopic heart transplant recipient requiring pacing (n=1). Abbott Aveir DR dual-chamber leadless pacemaker was evaluated on Changes in functional pacing modes during intermittent loss of ventricular-to-atrial i2i communication. The Aveir DR dual-chamber leadless pacemaker showed compensatory switches in functional pacing modes during intermittent loss of implant-to-implant communication in a heart transplant patient.
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