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Pacing for tachydysrhythmias.

P Roman-Smith

    AACN Clinical Issues in Critical Care Nursing
    |February 1, 1991
    PubMed
    Summary
    This summary is machine-generated.

    Pacing techniques can terminate slow, re-entrant tachycardias, with burst pacing being more effective but riskier than single extrastimulation. Implantable antitachycardia pacemakers show promise for supraventricular tachydysrhythmias, with ongoing research for ventricular tachydysrhythmias.

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    Area of Science:

    • Cardiac Electrophysiology
    • Cardiovascular Medicine

    Background:

    • Advances in cardiac electrophysiology have elucidated mechanisms of tachydysrhythmias.
    • Certain tachycardias are amenable to termination by pacing techniques.

    Purpose of the Study:

    • To review the effectiveness and limitations of pacing techniques for terminating tachydysrhythmias.
    • To discuss the current and future applications of implantable antitachycardia pacing devices.

    Main Methods:

    • Review of pacing strategies including single extrastimulation, multiple extrastimuli, and burst pacing.
    • Analysis of the clinical application of permanently implantable antitachycardia pacemakers.

    Main Results:

    • Slow, re-entrant tachycardias are most responsive to pace termination.

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  • Burst pacing is more effective than single extrastimulation but carries higher risks.
  • Implantable antitachycardia pacemakers are effective for supraventricular tachydysrhythmias but have mixed results for ventricular tachydysrhythmias.

    • Conclusions:

    • Pacing is a valuable tool for terminating specific tachydysrhythmias, particularly in acute settings.
    • Implantable antitachycardia pacing is expanding, with future devices integrating pacing and defibrillation capabilities.