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Benefits of Cardiac Resynchronization Therapy in an Asynchronous Heart Failure Model Induced by Left Bundle Branch Ablation and Rapid Pacing
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Benefits of Cardiac Resynchronization Therapy in an Asynchronous Heart Failure Model Induced by Left Bundle Branch Ablation and Rapid Pacing

Published on: December 11, 2017

Long-term ventricular pacing in treatment of sinoatrial block

T J Bayley

    British Medical Journal
    |August 1, 1971
    PubMed

    Insights

    Ventricular cardiac pacing effectively relieved symptoms in six patients with sinoatrial block unresponsive to medications like isoprenaline or ephedrine. This pacing method offered long-term survival benefits despite theoretical concerns.

    Area of Science:

    • Cardiology
    • Electrophysiology

    Background:

    • Sinoatrial block can cause significant symptoms.
    • Pharmacological treatments like isoprenaline and ephedrine are often used but may be ineffective.

    Purpose of the Study:

    • To evaluate the efficacy of ventricular cardiac pacing in patients with sinoatrial block unresponsive to medical management.

    Main Methods:

    • Six patients with sinoatrial block and symptoms were identified.
    • Patients received treatment via ventricular cardiac pacing.

    Main Results:

    • Pharmacological treatments (isoprenaline, ephedrine) provided no relief.
    • Ventricular cardiac pacing resulted in complete symptom relief for all six patients.
    • Patients experienced long-term survival, ranging from 18 months to over five years.

    Conclusions:

    • Ventricular cardiac pacing is an effective treatment for sinoatrial block when pharmacological options fail.
    • Long-term survival is achievable with ventricular pacing, even with theoretical drawbacks such as parasystole.

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