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

Pacemakers: abnormal function.

S R Spielman

    Geriatrics
    |October 1, 1985
    PubMed
    Summary
    This summary is machine-generated.

    Pacemaker malfunction, including loss of capture or oversensing, can occur early or late after implantation. Oversensing may cause syncope even when pacemakers appear normal during tests.

    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

    Evolving indications for permanent pacemakers.

    Annals of internal medicine·2001
    Same author

    Angina caused by systolic compression of the left coronary artery as a result of pseudoaneurysm of the mitral-aortic intervalvular fibrosa.

    American heart journal·1995
    Same author

    Activation mapping in ventricular tachycardia: role of the epicardium.

    Journal of the American College of Cardiology·1990
    Same author

    Proarrhythmic effects of antiarrhythmic drugs in patients with malignant ventricular arrhythmias evaluated by electrophysiologic testing.

    Journal of the American College of Cardiology·1988
    Same author

    Relation of acute antiarrhythmic drug efficacy to left ventricular function in coronary artery disease.

    The American journal of cardiology·1988
    Same author

    The electrophysiologic properties of esmolol, a short acting beta-blocker.

    International journal of clinical pharmacology, therapy, and toxicology·1988

    Area of Science:

    • Cardiology
    • Biomedical Engineering
    • Medical Devices

    Background:

    • Pacemaker implantation is a common procedure for managing cardiac arrhythmias.
    • Device malfunction, such as loss of capture or oversensing, can impact patient outcomes.
    • Understanding the timing and causes of these malfunctions is crucial for patient care.

    Purpose of the Study:

    • To analyze the incidence and timing of pacemaker capture loss.
    • To investigate oversensing as a cause of recurrent syncope in pacemaker patients.
    • To highlight potential diagnostic challenges with seemingly normal pacemaker function.

    Main Methods:

    • Review of pacemaker implantation data.
    • Analysis of device malfunction events (loss of capture, oversensing).

    Related Experiment Videos

  • Correlation of symptoms (syncope) with device behavior during follow-up.

    • Main Results:

    • Peak incidence of loss of capture occurs very early ( < 4 weeks) or very late ( > 3 years) post-implantation.
    • Oversensing can lead to recurrent syncope.
    • Patients with oversensing may present with seemingly normally functioning pacemakers during routine testing.

    Conclusions:

    • Pacemaker capture loss exhibits a bimodal incidence pattern.
    • Oversensing is a significant, often overlooked, cause of syncope in pacemaker recipients.
    • Thorough evaluation is necessary for patients experiencing syncope, even with normal-appearing pacemaker function on standard tests.