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

Dysrhythmias II: Classification of Tachyarrhythmias01:28

Dysrhythmias II: Classification of Tachyarrhythmias

20
Tachyarrhythmias are a type of dysrhythmia where the heart rate exceeds 100 beats per minute. Here are some common types of tachyarrhythmias:Sinus TachycardiaSinus tachycardia originates from increased impulses from the sinus node, leading to an elevated heart rate. It is often triggered by stress, fever, or exercise.Patients may experience palpitations, a sensation of a racing heart, dizziness, and chest discomfort.Causes and Risk Factors: Common causes include physical exertion, emotional...
20

You might also read

Related Articles

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

Sort by
Same author

The CAMERA-MRI Score to Predict LVEF Normalization Post Ablation for Primary Atrial Fibrillation Mediated Cardiomyopathy: a Pooled Analysis of Two Randomized Clinical Trials.

Heart rhythm·2026
Same author

Reply to: "Beyond Response Rates: Interpreting Long-Term Benefit in CheckMate 743" and "Beyond Statistical Significance: Methodological Fragility and Censoring Bias in the 5-Year Update of CheckMate 743".

Journal of clinical oncology : official journal of the American Society of Clinical Oncology·2026
Same author

Circulating metabolomic profile and its association with atrial fibrillation and systemic inflammation.

Heart rhythm O2·2026
Same author

CMR Detected Atrial Structural and Functional Remodeling in AF HFrEF: Ablation vs Medical Rate Control.

JACC. Clinical electrophysiology·2026
Same author

Erratum: Five-Year Clinical Outcomes With Nivolumab Plus Ipilimumab Versus Chemotherapy as First-Line Treatment for Unresectable Pleural Mesothelioma in CheckMate 743.

Journal of clinical oncology : official journal of the American Society of Clinical Oncology·2026
Same author

Impact of Left Atrial Dilatation on Catheter Ablation Outcomes for Persistent Atrial Fibrillation: Does Size Matter?

JACC. Clinical electrophysiology·2026

Related Experiment Video

Updated: Aug 11, 2025

Real-Time Cardiac Mapping with a Noninvasive Imageless Electrocardiographic Imaging System
10:17

Real-Time Cardiac Mapping with a Noninvasive Imageless Electrocardiographic Imaging System

Published on: April 11, 2025

807

Directed Graph Mapping for Ventricular Tachycardia: A Comparison to Established Mapping Techniques.

Joshua Hawson1, Enid Van Nieuwenhuyse2, Robin Van Den Abeele2

  • 1Department of Cardiology, Royal Melbourne Hospital, Melbourne, Victoria, Australia; Faculty of Medicine, Dentistry and Health Science, University of Melbourne, Melbourne, Victoria, Australia.

JACC. Clinical Electrophysiology
|February 8, 2023
PubMed
Summary

Directed graph mapping (DGM) accurately identifies ventricular tachycardia (VT) mechanisms and circuits, showing strong agreement with traditional mapping. This novel technique aids in VT ablation by quickly pinpointing critical components for successful outcomes.

Keywords:
Coherent Mappingdirected graph mappingventricular arrhythmiasventricular tachycardia

More Related Videos

Ablation of Ischemic Ventricular Tachycardia Using a Multipolar Catheter and 3-dimensional Mapping System for High-density Electro-anatomical Reconstruction
06:57

Ablation of Ischemic Ventricular Tachycardia Using a Multipolar Catheter and 3-dimensional Mapping System for High-density Electro-anatomical Reconstruction

Published on: January 31, 2019

14.8K
Dual-Dye Optical Mapping of Hearts from RyR2R2474S Knock-In Mice of Catecholaminergic Polymorphic Ventricular Tachycardia
09:36

Dual-Dye Optical Mapping of Hearts from RyR2R2474S Knock-In Mice of Catecholaminergic Polymorphic Ventricular Tachycardia

Published on: December 22, 2023

1.3K

Related Experiment Videos

Last Updated: Aug 11, 2025

Real-Time Cardiac Mapping with a Noninvasive Imageless Electrocardiographic Imaging System
10:17

Real-Time Cardiac Mapping with a Noninvasive Imageless Electrocardiographic Imaging System

Published on: April 11, 2025

807
Ablation of Ischemic Ventricular Tachycardia Using a Multipolar Catheter and 3-dimensional Mapping System for High-density Electro-anatomical Reconstruction
06:57

Ablation of Ischemic Ventricular Tachycardia Using a Multipolar Catheter and 3-dimensional Mapping System for High-density Electro-anatomical Reconstruction

Published on: January 31, 2019

14.8K
Dual-Dye Optical Mapping of Hearts from RyR2R2474S Knock-In Mice of Catecholaminergic Polymorphic Ventricular Tachycardia
09:36

Dual-Dye Optical Mapping of Hearts from RyR2R2474S Knock-In Mice of Catecholaminergic Polymorphic Ventricular Tachycardia

Published on: December 22, 2023

1.3K

Area of Science:

  • Electrophysiology
  • Cardiovascular Medicine
  • Medical Technology

Background:

  • Successful ventricular tachycardia (VT) ablation requires understanding VT mechanisms and critical circuit components.
  • Directed graph mapping (DGM) is a novel technique designed to identify VT mechanisms and circuit components.

Purpose of the Study:

  • To evaluate the accuracy of DGM in VT ablation.
  • To compare DGM against traditional mapping (TM) and an automated conduction velocity mapping (ACVM) tool.

Main Methods:

  • Included patients with structural heart disease undergoing VT ablation with entrainment-proven critical isthmus and high-density electroanatomical mapping.
  • Traditional mapping (TM) served as the gold standard.
  • Local activation time data were processed using DGM and ACVM for comparison with TM.

Main Results:

  • Overall agreement between DGM and TM for VT mechanism and circuit type was strong (kappa = 0.79).
  • Agreement between ACVM and TM was also strong (kappa = 0.66).
  • Both DGM and ACVM correctly identified the VT isthmus in 89% of re-entrant cases and focal activation in all cases.

Conclusions:

  • DGM is a rapid, automated algorithm.
  • DGM demonstrates a strong level of agreement with traditional mapping for VT maps.
  • DGM shows promise as an effective tool for VT ablation.