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 Concept Videos

Cardiac Catheterization II: Right Heart Catheterization01:21

Cardiac Catheterization II: Right Heart Catheterization

Right Heart Catheterization: An OverviewRight heart catheterization is an invasive diagnostic procedure that measures right-sided cardiac and pulmonary artery pressures, calculates cardiac output, and identifies intracardiac shunts. It provides detailed hemodynamic data essential for diagnosing and managing various cardiovascular conditions, such as pulmonary hypertension.Access SitesCommon access sites for right heart catheterization include the internal jugular vein in the neck region, the...

You might also read

Related Articles

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

Sort by
Same author

2026 HRS/AHA/APHRS/EHRA/IDSA/LAHRS/PACES/STS expert consensus statement update on cardiovascular implantable electronic device lead management and extraction.

Heart rhythm·2026
Same author

Impact of age and diagnosis-to-ablation time on sex differences in 12-month outcomes after catheter ablation for atrial fibrillation: An admIRE subanalysis.

Heart rhythm·2026
Same author

Left bundle branch area stylet-driven lead: Performance, safety, and quality of life at 12 months after implant (the BIO-CONDUCT investigational device exemption study).

Heart rhythm·2026
Same author

Utilization of Serum Metabolomics and Polygenic Risk Scores in a Novel Risk Stratification Tool for the Prediction of Incident Atrial Fibrillation.

Circulation. Arrhythmia and electrophysiology·2026
Same author

VERSA: Omnipolar vector mapping from arbitrarily positioned electrodes.

Heart rhythm·2026
Same author

Pulsed Field Ablation for the Treatment of Octogenarians With Atrial Fibrillation.

Journal of cardiovascular electrophysiology·2026

Related Experiment Video

Updated: May 13, 2026

Three-Dimensional Echocardiographic Method for the Visualization and Assessment of Specific Parameters of the Pulmonary Veins
06:48

Three-Dimensional Echocardiographic Method for the Visualization and Assessment of Specific Parameters of the Pulmonary Veins

Published on: October 28, 2020

Method for differentiating left superior pulmonary vein exit conduction from pseudo-exit conduction.

James E Ip1, Steven M Markowitz, Jim W Cheung

  • 1Department of Medicine, Division of Cardiology, Cornell University Medical Center, New York, NY 10021, USA.

Pacing and Clinical Electrophysiology : PACE
|March 7, 2013
PubMed
Summary

Pseudo-pulmonary vein exit conduction, often mistaken for true conduction, can occur in atrial fibrillation ablation. A new method reliably differentiates this false signal, preventing unnecessary ablation and ensuring complete pulmonary vein isolation.

More Related Videos

Three-Dimensional Modeling of the Left Atrium and Pulmonary Veins with a Precise Intracardiac Echocardiography Approach
04:29

Three-Dimensional Modeling of the Left Atrium and Pulmonary Veins with a Precise Intracardiac Echocardiography Approach

Published on: June 30, 2023

An Ex Vivo Porcine Model for Hydrodynamic Testing of Experimental Aortic Valve Procedures and Novel Medical Devices
06:56

An Ex Vivo Porcine Model for Hydrodynamic Testing of Experimental Aortic Valve Procedures and Novel Medical Devices

Published on: August 25, 2023

Related Experiment Videos

Last Updated: May 13, 2026

Three-Dimensional Echocardiographic Method for the Visualization and Assessment of Specific Parameters of the Pulmonary Veins
06:48

Three-Dimensional Echocardiographic Method for the Visualization and Assessment of Specific Parameters of the Pulmonary Veins

Published on: October 28, 2020

Three-Dimensional Modeling of the Left Atrium and Pulmonary Veins with a Precise Intracardiac Echocardiography Approach
04:29

Three-Dimensional Modeling of the Left Atrium and Pulmonary Veins with a Precise Intracardiac Echocardiography Approach

Published on: June 30, 2023

An Ex Vivo Porcine Model for Hydrodynamic Testing of Experimental Aortic Valve Procedures and Novel Medical Devices
06:56

An Ex Vivo Porcine Model for Hydrodynamic Testing of Experimental Aortic Valve Procedures and Novel Medical Devices

Published on: August 25, 2023

Area of Science:

  • Cardiology
  • Electrophysiology
  • Medical Device Technology

Background:

  • Pulmonary vein (PV) isolation is crucial for atrial fibrillation (AF) ablation success.
  • Assessing exit block via pacing can be confounded by left atrial appendage (LAA) far-field capture (pseudo-exit conduction).
  • A reliable method to identify pseudo-exit conduction is needed.

Purpose of the Study:

  • To evaluate a methodology for identifying pseudo-pulmonary vein exit conduction.
  • To differentiate true PV exit conduction from LAA far-field capture.

Main Methods:

  • 135 AF patients undergoing PV isolation were studied.
  • Circumferential pacing assessed exit block after PV entrance block.
  • Ablation catheter positioned in LAA during PV pacing differentiated true from pseudo-exit conduction.

Main Results:

  • 16 patients (11.9%) showed LA capture during left superior PV pacing.
  • 14 patients (10.4%) were identified with pseudo-exit conduction using the LAA positioning method.
  • Far-field capture was confirmed by LAA activation preceding PV capture and local capture.

Conclusions:

  • Pseudo-exit conduction is common due to LSPV and LAA proximity.
  • Misidentification of pseudo-exit conduction can lead to unnecessary ablation.
  • This method prevents erroneous conclusions and unnecessary procedures after complete PV isolation.