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Complications with permanent endocardial electrode systems.

O J Ohm, L Segadal, D W Skagen

    Acta Medica Scandinavica. Supplementum
    |January 1, 1976
    PubMed
    Summary
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    Endocardial electrode systems show a 30.3% complication rate in 185 patients over seven years. Careful surgical technique and anesthesia choices can minimize risks like displacement and perforation.

    Area of Science:

    • Cardiology
    • Medical Devices
    • Surgical Techniques

    Background:

    • Endocardial electrode systems are crucial for cardiac pacing.
    • Complications associated with these systems require thorough investigation.
    • Long-term data on electrode-related issues is essential for improving patient outcomes.

    Purpose of the Study:

    • To analyze the incidence and types of complications associated with endocardial electrode systems.
    • To describe the surgical technique and anesthetic considerations for electrode implantation.
    • To evaluate the safety and efficacy of the cephalic route for electrode placement.

    Main Methods:

    • Retrospective analysis of 185 patients who underwent endocardial electrode system implantation over seven years.
    • Detailed review of surgical techniques, including the cephalic route.

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  • Classification and quantification of all electrode-related complications.

    • Main Results:

    • A 30.3% complication rate (56 out of 185 patients) was observed.
    • Common complications included diaphragm stimulation (10%), electrode displacement/retraction (6.5%), and heart perforation (3.8%).
    • Four electrode fractures and three instances requiring conversion to myocardial electrodes occurred. One death from cardiac tamponade and one case of irreversible brain damage were reported.

    Conclusions:

    • Endocardial electrode systems are associated with a significant complication rate.
    • The cephalic route and careful anesthetic management appear to reduce displacement and retraction.
    • While serious complications are rare, vigilance in monitoring and managing potential issues is critical for patient safety.