Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Programmed upper-rate limit dependent endless loop tachycardia.

S Amikam, S Furman

    Chest
    |February 1, 1984
    PubMed
    Summary
    This summary is machine-generated.

    Related Concept Videos

    You might also read

    Related Articles

    Articles linked to this work by shared authors, journal, and citation graph.

    Sort by
    Same author

    Multidimensional gain control in image representation and processing in vision.

    Biological cybernetics·2014
    Same author

    Controlled synthesis of a large fraction of metallic single-walled carbon nanotube and semiconducting carbon nanowire networks.

    Nanoscale·2011
    Same author

    Management of potential conflict of interest during publication and presentation.

    Journal of cardiac failure·2002
    Same author

    [Pacing mode influence on morbidity and mortality].

    Harefuah·2002
    Same author

    Recognition and correction of subcuticular malposition of pacemaker pulse generators.

    Pacing and clinical electrophysiology : PACE·2001
    Same author

    The mysterious fate of Hyman's pacemaker.

    Pacing and clinical electrophysiology : PACE·2001
    Same journal

    The effect of a two-day stay at high altitude (2500 m) on right ventricular afterload and oxygen delivery in patients with pulmonary vascular disease A randomized controlled crossover trial.

    Chest·2026
    Same journal

    A Comparative Study of Radiation Exposure in Conventional and Robotic Bronchoscopy.

    Chest·2026
    Same journal

    Independent Prognostic Contributions of Anti-Ro52 and Anti-MDA5 in Autoimmune-Associated Interstitial Lung Disease.

    Chest·2026
    Same journal

    Lung aeration and gas exchange in SGA or AGA infants with moderate-severe BPD: secondary analysis of the PATH-BPD study.

    Chest·2026
    Same journal

    Lung Cancer Incidence and Mortality after Negative Low-Dose CT Screening Results.

    Chest·2026
    Same journal

    Symptom prevalence and impact on lung cancer risk in the SUMMIT study.

    Chest·2026
    See all related articles

    Pacemaker programming can prevent endless loop tachycardia (ELT) in patients with VDD dual chamber devices. Increasing the upper-rate limit shortens ELT duration by influencing the pacemaker

    Area of Science:

    • Cardiology
    • Biomedical Engineering
    • Electrophysiology

    Background:

    • Dual chamber pacemakers, specifically VDD models, are used to manage bradyarrhythmias.
    • Endless loop tachycardia (ELT) is a potential complication associated with pacemaker function.
    • Understanding pacemaker-induced arrhythmias is crucial for patient management.

    Observation:

    • A patient with a VDD dual chamber pacemaker experienced spontaneous or provoked endless loop tachycardia (ELT).
    • The duration of the ELT was observed to be inversely proportional to the programmed upper-rate limit of the pacemaker.
    • Magnet application and removal could reliably provoke the tachycardia.

    Findings:

    • The ELT mechanism was linked to the pacemaker's automatic variable atrioventricular (AV) delay, specifically a Wenckebach effect.

    Related Experiment Videos

  • This variable AV delay prolonged the maintenance of the programmed cycle length at higher upper-rate limits during tachycardia.
  • Increasing the upper-rate setting was found to effectively prevent or shorten the duration of the ELT.

    • Implications:

    • This case highlights a specific pacemaker programming strategy to manage and prevent ELT in VDD devices.
    • The findings underscore the importance of understanding pacemaker behavior and its interaction with cardiac electrophysiology.
    • Optimizing pacemaker settings, particularly the upper-rate limit, can be a therapeutic tool for managing tachyarrhythmias.