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Related Experiment Videos

Clinical experience with a bradycardia indicating pacemaker.

M Rosenqvist, K O Edhag, H O Vallin

    Pacing and Clinical Electrophysiology : PACE
    |May 1, 1983
    PubMed
    Summary

    A new bradycardia-detecting pacemaker allows evaluation of pacemaker dependence in patients with unclear pacing indications. This device safely assesses the need for permanent pacing, aiding clinical decision-making.

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    Efficacy of primary preventive ICD therapy in an unselected population of patients with reduced left ventricular ejection fraction.

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    Area of Science:

    • Cardiology
    • Biomedical Engineering

    Background:

    • The necessity of permanent pacing is debated in specific patient cohorts.
    • Permanent pacemaker implantation is rarely reversed, hindering assessment of pacemaker dependence.

    Purpose of the Study:

    • To evaluate the natural history of bradyarrhythmias in patients with questionable permanent pacing indications.
    • To assess the utility of a novel bradycardia-detecting implantable pulse generator for evaluating pacemaker dependence.

    Main Methods:

    • Implantation of a bradycardia-detecting pacemaker in 38 patients lacking clear pacing indications.
    • Follow-up for a mean of 13 months, including Holter monitoring and analysis of explanted devices.
    • Monitoring for bradycardia events below 30 beats per minute.

    Main Results:

    • Bradycardia was detected in 33 patients, with a mean onset of 4.6 months post-implantation.
    • Twenty-one patients experienced prolonged periods without detected bradycardia.
    • Minor lightheadedness was reported by 15 patients during pacemaker activation periods.
    • No technical failures of the bradycardia-detection feature were observed.

    Conclusions:

    • The bradycardia-indicating pacemaker offers a safe method for assessing pacemaker dependency in patients with controversial pacing indications.
    • This technology facilitates long-term evaluation, improving clinical decision-making regarding permanent pacing.
    • The device combines diagnostic and therapeutic functions, enhancing patient management.

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