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Related Experiment Videos

Pacing system analyzers: different systems--different results

J H Wilson1, J B Siegmund, R Johnson

  • 1Department of Cardiology, Good Samaritan Hospital, Cincinnati, Ohio 45220.

Pacing and Clinical Electrophysiology : PACE
|January 1, 1994
PubMed
Summary

Different pacing system analyzers (PSAs) yield varying electrogram amplitudes during pacemaker implantation. Despite differences, all methods correlate well, ensuring no clinical complications with modern pacemaker programming.

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Area of Science:

  • Electrophysiology
  • Cardiovascular Devices
  • Medical Instrumentation

Background:

  • Pacemaker implantation involves measuring electrophysiological parameters using pacing system analyzers (PSAs).
  • Variations in filter settings and measurement techniques across different PSAs and implanted pacemakers may affect readings.
  • Standardized measurement protocols are crucial for accurate device assessment.

Purpose of the Study:

  • To investigate the significant differences in electrophysiological measurements obtained using three distinct PSAs and a manual method.
  • To evaluate the impact of PSA variability on intracardiac electrogram amplitude measurements.
  • To assess the clinical implications of using different PSAs during pacemaker implantation.

Main Methods:

  • Measurements were obtained from 99 patients using three different PSAs and a manual method.

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  • Intracardiac electrogram amplitudes were recorded and compared across all measurement techniques.
  • Statistical correlation analysis was performed to assess the relationship between the different methods.

    • Main Results:

    • Significant differences in intracardiac electrogram amplitudes were observed among the three PSAs tested.
    • Electrogram amplitudes measured by PSAs were generally higher than those obtained by manual measurement.
    • Despite quantitative differences, all measurement methods demonstrated good correlation with each other.

    Conclusions:

    • While different PSAs yield varying electrogram amplitudes, they correlate well, indicating reliability.
    • The use of a PSA during pacemaker implantation, even with different sensing techniques, does not lead to clinical complications.
    • Current practices in pacemaker programming are robust despite inter-analyzer measurement variability.