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

Reversion to back-up mode (VOO) in a DDD pacemaker model

M Turner1, L Zacharkiw, A J Marshall

  • 1Department of Cardiology, Derriford Hospital, Plymouth, United Kingdom.

Pacing and Clinical Electrophysiology : PACE
|September 2, 1998
PubMed
Summary

Sorin pacemakers may revert to backup mode (VOO) more often than predicted. Researchers found this issue in four out of ten patients, with no clear link to electromagnetic interference (EMI).

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

Gefitinib targets ZAP-70-expressing chronic lymphocytic leukemia cells and inhibits B-cell receptor signaling.

Cell death & disease·2014
Same author

Follicular dendritic cell secreted protein FDC-SP controls IgA production.

Mucosal immunology·2014
Same author

Haemoglobin levels in blood donors.

Glasgow medical journal·2010
Same author

Atenolol-Once-daily Dosage.

Proceedings of the Royal Society of Medicine·2010
Same author

Epidermal and dermal integration into sphere-templated porous poly(2-hydroxyethyl methacrylate) implants in mice.

Journal of biomedical materials research. Part A·2010
Same author

Evaluating orangutan census techniques using nest decay rates: implications for population estimates.

Ecological applications : a publication of the Ecological Society of America·2008

Area of Science:

  • Cardiology
  • Biomedical Engineering
  • Medical Device Technology

Background:

  • A recent study identified mode reversion to backup mode (VOO) in Sorin pacemakers.
  • The estimated prevalence was 1%, with electromagnetic interference (EMI) suggested as a potential cause.

Purpose of the Study:

  • To investigate the actual prevalence of mode reversion to backup mode (VOO) in patients with Sorin pacemakers.
  • To assess the role of electromagnetic interference (EMI) in this phenomenon.

Main Methods:

  • Retrospective review of ten patients undergoing follow-up in a dedicated pacing clinic.
  • Identification of patients who experienced mode reversion to backup mode (VOO).
  • Inquiry into patient history for potential exposure to electromagnetic interference (EMI).

Related Experiment Videos

Main Results:

  • Four out of ten (40%) patients followed in the clinic exhibited mode reversion to backup mode (VOO).
  • None of the affected patients reported any history suggestive of electromagnetic interference (EMI) exposure.

Conclusions:

  • The prevalence of mode reversion to backup mode (VOO) in Sorin pacemakers may be significantly higher than the previously estimated 1%.
  • Electromagnetic interference (EMI) may not be the primary or sole cause of mode reversion to backup mode (VOO).
  • Further investigation is warranted to understand the underlying mechanisms and contributing factors for this pacemaker behavior.