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Related Experiment Videos

Pacemaker backup-mode reversion and injury during cardiac surgery.

G A Lamas, E M Antman, J P Gold

    The Annals of Thoracic Surgery
    |February 1, 1986
    PubMed
    Summary

    Electrocautery and internal defibrillation can affect pacemakers during cardiac surgery. This study presents 5 cases of pacemaker malfunction or injury, offering management recommendations for patients undergoing cardiac procedures.

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    Area of Science:

    • Cardiovascular Surgery
    • Biomedical Engineering
    • Electrophysiology

    Background:

    • Electrocautery and internal defibrillation are standard procedures in cardiac operations.
    • Patients with permanently implanted pulse generators (pacemakers) may require cardiac surgery.
    • Potential interactions between cardiac surgical energy devices and pacemakers are a clinical concern.

    Observation:

    • Five cases are presented where patients with pacemakers experienced backup-mode reversion or injury to their pulse generators during cardiac procedures.
    • These events highlight the risks associated with using electrocautery and defibrillation in pacemaker patients.
    • The specific mechanisms leading to pacemaker malfunction require careful consideration.

    Findings:

    • Backup-mode reversion can occur, altering the pacemaker's programmed settings.

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  • Direct generator or surrounding tissue injury is a potential complication.
  • The energy delivered during cardiac procedures can interfere with pacemaker function.

    • Implications:

    • Recommendations are provided for managing patients with pacemakers undergoing cardiac operations.
    • Strategies to minimize the risk of pacemaker malfunction and injury should be implemented.
    • Further research into device-pacemaker interactions during surgery is warranted to improve patient safety.