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Related Experiment Videos

Atrial lead dislodgement with a DDD pacemaker.

A J Greenspon, J Cox, R M Greenberg

    Pacing and Clinical Electrophysiology : PACE
    |May 1, 1986
    PubMed
    Summary
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    Pacemaker lead dislodgement can cause unusual heart rhythms. A pacemaker

    Area of Science:

    • Cardiology
    • Biomedical Engineering

    Background:

    • A patient with a history of aortic valve surgery underwent DDD pacemaker implantation for complete heart block.
    • An active fixation atrial J electrode was utilized for lead placement.

    Observation:

    • The patient presented with an unusual electrocardiographic rhythm characterized by two distinct QRS morphologies.
    • Standard chest X-rays did not reveal any changes in lead positioning.

    Findings:

    • Analysis of the pacemaker's MARKER CHANNEL revealed atrial lead dislodgement as the cause of the alternating QRS morphologies.
    • This finding highlights the potential for atrial active fixation leads to become dislodged post-implantation.

    Implications:

    • Unusual electrocardiographic rhythms may indicate pacemaker lead dislodgement.

    Related Experiment Videos

  • Utilizing the MARKER CHANNEL of a pacemaker can be a valuable diagnostic tool for identifying lead-related issues.
  • Awareness of this complication is crucial for clinicians managing patients with pacemakers.