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

Dual chamber pacemakers: upper rate behavior.

S Furman

    Pacing and Clinical Electrophysiology : PACE
    |March 1, 1985
    PubMed
    Summary
    This summary is machine-generated.

    Dual chamber pacemakers manage upper heart rates by sensing atrial activity and limiting ventricular response. Understanding atrial refractoriness and timing intervals is crucial for effective pacemaker function and preventing heart block.

    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

    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 author

    Vasoactive intestinal peptide and related molecules induce nitrite accumulation in the extracellular milieu of rat cerebral cortical cultures.

    Neuroscience letters·2001
    Same journal

    A Case of Permanent Pacemaker Implantation via the Epicardial Approach Using the 3830 Lead in an 11-Day-Old Neonate (With Follow-Up of the Above Case).

    Pacing and clinical electrophysiology : PACE·2026
    Same journal

    Cryoballoon Versus Radiofrequency Ablation for Persistent Atrial Fibrillation: Meta-Analysis of Randomized Trials.

    Pacing and clinical electrophysiology : PACE·2026
    Same journal

    Tilt Test Duration in Suspected Vasovagal Syncope: Temporal Patterns and Diagnostic Yield in Patients From Central China.

    Pacing and clinical electrophysiology : PACE·2026
    Same journal

    Combined Leadless Pacing and Subcutaneous ICD Therapy in Long QT Syndromes.

    Pacing and clinical electrophysiology : PACE·2026
    Same journal

    Association of Anesthesia Modality With Procedural Parameters and Clinical Outcomes in PVI for Atrial Fibrillation.

    Pacing and clinical electrophysiology : PACE·2026
    Same journal

    Zero-Fluoroscopy Cryoballoon Ablation for Paroxysmal Atrial Fibrillation in a Patient With Dextrocardia: A Case Report.

    Pacing and clinical electrophysiology : PACE·2026
    See all related articles

    Area of Science:

    • Biomedical Engineering
    • Cardiology
    • Medical Devices

    Background:

    • Dual chamber pacemakers require precise control of heart rate for optimal patient outcomes.
    • Effective upper rate management relies on sensing atrial activity and limiting ventricular response.

    Purpose of the Study:

    • To elucidate the mechanisms of upper rate management in dual chamber pacemakers.
    • To explain the role of atrial refractoriness and timing intervals in controlling ventricular response.

    Main Methods:

    • Analysis of dual chamber pacemaker timing cycles, focusing on atrial refractoriness.
    • Examination of the interplay between the atrioventricular (AV) interval, atrial refractory (AR) interval, and total atrial refractory interval (TARI).
    • Investigation of the upper rate limit interval (URI) and its relationship with TARI, Wenckebach interval (WI), and ventricular refractory/blanking intervals.

    Related Experiment Videos

    Main Results:

    • Atrial sensing is determined by P-wave timing relative to the TARI; P-waves within TARI are unsensed, while those beyond are sensed.
    • Programming URI equal to TARI can lead to sudden atrioventricular (AV) block.
    • A URI longer than TARI defines the Wenckebach interval (WI), influencing response plateau duration.

    Conclusions:

    • Dual chamber pacemaker function, particularly upper rate control, is fundamentally governed by atrial refractoriness and specific timing intervals.
    • Understanding these intervals (AV, AR, TARI, URI, WI) is essential for programming pacemakers to prevent adverse events like AV block.
    • Comprehensive interpretation of pacemaker timing cycles requires consideration of both atrial and ventricular refractory and blanking periods.