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Related Experiment Videos

The autodiagnostic pacemaker

A A Auerbach, S Furman

    Pacing and Clinical Electrophysiology : PACE
    |January 1, 1979
    PubMed
    Summary
    This summary is machine-generated.

    The autodiagnostic pacemaker (ADP) effectively detects and marks pacemaker failures like failure to capture and failure to sense. This system provides automatic correction and external monitoring for improved pacemaker function.

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    Area of Science:

    • Biomedical Engineering
    • Cardiology
    • Medical Devices

    Background:

    • Pacemaker malfunction, including failure to capture and failure to sense, necessitates immediate detection and correction.
    • Continuous monitoring and marking of intermittent pacemaker failures are crucial for patient safety.

    Purpose of the Study:

    • To introduce and evaluate the autodiagnostic pacemaker (ADP) system for detecting and managing pacemaker failures.
    • To assess the ADP's ability to distinguish between adequate cardiac response and pseudo-responses, and to detect failures in sensing spontaneous activity.

    Main Methods:

    • The ADP utilizes a single electrode to differentiate between normal cardiac response and electrotonic spread for failure to capture detection.
    • Two amplifiers with different refractory periods and fidelities are employed for accurate failure to sense detection.

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  • The system was tested in 14 anesthetized dogs using unipolar electrodes.

    • Main Results:

    • The ADP successfully detected both failure to capture and failure to sense.
    • Upon detecting failure to capture, the ADP doubled stimulus voltage and generated marker pulses.
    • Upon detecting failure to sense, the ADP generated non-stimulating marker pulses with a distinct delay.

    Conclusions:

    • The autodiagnostic pacemaker demonstrates a reliable method for detecting and marking critical pacemaker malfunctions.
    • The ADP's automatic correction and external marking capabilities offer a significant advancement in pacemaker monitoring and management.
    • Unipolar electrodes proved more effective than bipolar electrodes for stimulation and electrogram detection in this study.