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Initial experience with a fully implantable, programmable, scanning, extrastimulus pacemaker for tachycardia

A W Nathan, A J Camm, R S Bexton

    Clinical Cardiology
    |January 1, 1982
    PubMed
    Summary
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    A new automatic scanning pacemaker effectively terminates tachycardia episodes. This implantable device offers a versatile treatment for recurrent supraventricular tachycardia, eliminating the need for drug therapy.

    Area of Science:

    • Cardiology
    • Biomedical Engineering

    Background:

    • Paroxysmal supraventricular tachycardia (PSVT) poses a significant clinical challenge.
    • Recurrent episodes often necessitate continuous drug therapy or invasive procedures.

    Observation:

    • A fully implantable automatic scanning pacemaker was trialed in three patients with regular PSVT.
    • The device automatically detects tachycardia and delivers scanning extrastimuli for termination.
    • A memory function allows immediate reuse of successful pacing sequences.

    Findings:

    • All three patients experienced successful tachycardia termination with the scanning pacemaker.
    • No sustained tachycardia episodes occurred post-implantation.
    • No adverse arrhythmias were induced, and all patients discontinued antiarrhythmic drugs.

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    Implications:

    • Fully implantable scanning pacemakers represent an effective and versatile treatment for recurrent PSVT.
    • This technology may reduce reliance on long-term pharmacological interventions.
    • Further research into automated tachycardia management systems is warranted.