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Related Experiment Videos

The reliability of pacemaker electrode-leads.

G D Green

    Journal of Electrocardiology
    |January 1, 1975
    PubMed
    Summary
    This summary is machine-generated.

    This review of Medtronic pacemaker electrode-lead reliability found the endocardial bipolar lead (Type 5818) to be more reliable than its predecessor. Multistranded conductors are recommended to enhance pacemaker safety.

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    Area of Science:

    • Cardiovascular Medicine
    • Biomedical Engineering
    • Medical Device Technology

    Background:

    • Extensive clinical experience with Medtronic pacemakers has been gathered in Glasgow.
    • Over 400 primary pacemaker implants were performed over a seven-and-a-half-year period.
    • This review focuses on the technical reliability of pacemaker electrode-leads.

    Purpose of the Study:

    • To evaluate the technical reliability of Medtronic pacemaker electrode-leads.
    • To analyze electrode-lead failures based on implant lifetimes.
    • To compare the reliability of different electrode-lead models.

    Main Methods:

    • Review of patient data from primary pacemaker implants.
    • Analysis of electrode-lead failures, including failed and incomplete implant lifetimes.

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  • Comparison of reliability between electrode-lead types (Type 5818 vs. Type 5816).

    • Main Results:

    • The endocardial bipolar electrode-lead (Type 5818) demonstrated a low incidence of failures, indicating greater reliability than its predecessor (Type 5816).
    • Reliability of myocardial electrode-leads requires further investigation due to limited usage.
    • Insulation failures were generally not clinically significant, but broken conductors posed a hazard.

    Conclusions:

    • The current bipolar catheter design shows promise but requires more time to confirm if it meets theoretical long-life power source expectations.
    • Multistranded conductors are recommended to mitigate the risks associated with broken conductors.
    • Retrieval of pacemakers after patient death is advised for further analysis.