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Related Experiment Videos

Six years' experience with atrial leads.

W C Brownlee, R M Hirst

    Pacing and Clinical Electrophysiology : PACE
    |November 1, 1986
    PubMed
    Summary
    This summary is machine-generated.

    Atrial leads for pacemakers have a higher complication rate (11%) than ventricular leads (2%). This finding is crucial for selecting appropriate pacemaker systems for patients needing cardiac rhythm management.

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    Area of Science:

    • Cardiology
    • Biomedical Engineering
    • Medical Device Technology

    Background:

    • Atrial leads are essential components of pacemaker systems for managing cardiac arrhythmias.
    • A variety of atrial lead designs, including passive and active fixation, have been developed.
    • Understanding the performance and complication rates of different atrial lead types is critical for clinical practice.

    Purpose of the Study:

    • To evaluate the six-year clinical experience with a range of atrial leads.
    • To compare the performance and complication rates of different atrial lead designs.
    • To inform the selection of pacemaker systems based on lead type and associated risks.

    Main Methods:

    • Retrospective analysis of 329 unipolar and 12 bipolar atrial leads implanted in 302 patients over six years.

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  • Inclusion of various lead types: passive fixation (J-shaped, tined, finned), porous tip, and active fixation leads.
  • Assessment of P wave characteristics, voltage, and energy thresholds, alongside complication rates (early and late).

    • Main Results:

    • No statistically significant differences were observed in P wave recordings among unipolar leads.
    • Voltage and energy thresholds did not differ significantly across the various lead types evaluated.
    • A total complication rate of 11% was observed for atrial leads (6.3% early, 4.7% late), significantly higher than the 2% rate for ventricular leads.

    Conclusions:

    • The overall complication rate for atrial leads is substantially higher compared to ventricular leads.
    • Clinical consideration of lead type is paramount when choosing pacemaker systems to mitigate patient risk.
    • Further research into lead design and implantation techniques may help reduce atrial lead complications.