Entrainment Mapping.

  title={Entrainment Mapping.},
  author={Saurabh Kumar and Usha B Tedrow and William G. Stevenson},
  journal={Cardiac electrophysiology clinics},
  volume={9 1},
Mapping during ventricular tachycardia (VT) aims to elucidate mechanism, describe myocardial propagation, and identify the origin and critical regions of VT that can be targeted for ablation, most commonly with radiofrequency ablation. Most VTs in structural heart disease are due to macro-reentry in and around scar. A combination of mapping techniques, including mapping to identify the arrhythmia substrate, activation sequence mapping, pace-mapping, and entrainment mapping, may be used to… 
6 Citations
Ventricular Tachycardia Isthmus Characteristics: Insights from High-density Mapping
New technologies which allow electroanatomic mapping at higher density and with smaller, more closely spaced electrodes have allowed new insights into the characteristics of VT circuits and how they may improve VT ablation strategies are discussed.
Mapping of ventricular tachycardia in patients with ischemic cardiomyopathy: Current approaches and future perspectives
Current and proposed ablation strategies for VT are focused on to provide an overview of the potential/real application (and results) of several ablation approaches and future perspectives.
Fundamentals of Cardiac Mapping.
An overview of the fundamentals of EAM is provided, which includes several mapping approaches available to the electrophysiologist, each optimized for specific arrhythmia mechanisms.
QTc dispersion as a novel marker in identifying patients requiring an epicardial approach for ablation of scar mediated ventricular tachycardia
Patients requiring an epicardial ablation have a higher QTc dispersion, and a value greater than 51.5 msec reliably differentiates between the two groups with high sensitivity and specificity.
The Concept of Entrainment
The author discusses the history of entrainment and reentry in deciphering the mechanism of cardiac arrhythmias as well as the methodology ofEntrainment mapping to determine the critical isthmus in various tachycardias.
Complexity of scar and ventricular arrhythmias in dilated cardiomyopathy of any etiology: Long‐term data from the SCARFEAR (Cardiovascular Magnetic Resonance Predictors of Appropriate Implantable Cardioverter‐Defibrillator Therapy Delivery) Registry
Late gadolinium enhancement (LGE) assessed with cardiovascular magnetic resonance (CMR) correlates with ventricular arrhythmias and survival in patients with structural heart disease. Whether some


Entrainment mapping and radiofrequency catheter ablation of ventricular tachycardia in right ventricular dysplasia.
VT in ARVD shows many of the characteristics of VT due to myocardial infarction, and entrainment mapping techniques can be used to characterize reentry circuits inARVD.
Exploring postinfarction reentrant ventricular tachycardia with entrainment mapping.
A classification that divides reentry circuits into one or more functional components helps to conceptualize the reentry circuit and predicts the likelihood that heating with radiofrequency current will terminate tachycardia.
Importance of Ventricular Tachycardia Induction and Mapping for Patients Referred for Epicardial Ablation
Many nonischemic cardiomyopathy (NICMP) patients referred for catheter ablation of ventricular tachycardia (VT) undergo an initial epicardial approach under general anesthesia (GA). However, GA may
Recognition of far-field electrograms during entrainment mapping of ventricular tachycardia.
Far-field potentials are common during mapping in infarcts and many can be distinguished from local potentials by entrainment, improving the accuracy of mapping.
Comparison of mapping criteria for hemodynamically tolerated, postinfarction ventricular tachycardia.
Mapping criteria for hemodynamically tolerated, postinfarction ventricular tachycardia (VT) have been evaluated in only small series of patients, and at sites with concealed entrainment, matching stimulus-QRS and electrogram-Q RS intervals were superior to other criteria in differentiating a critical isthmus from bystander or noncritical sites in postinfARction VT.
Electrically Unexcitable Scar Mapping Based on Pacing Threshold for Identification of the Reentry Circuit Isthmus: Feasibility for Guiding Ventricular Tachycardia Ablation
This new method of identifying EUS provides complimentary information to the electrogram amplitude in delineating potential reentry circuit paths, potentially facilitating ablation during sinus rhythm.
High-Resolution Mapping of Postinfarction Reentrant Ventricular Tachycardia: Electrophysiological Characterization of the Circuit.
In postinfarction reentrant VT, conduction velocities are slowest at the proximal and distal curvatures, and high-resolution activation mapping of VT may better guide ablation therapy.
Identification of Reentry Circuit Sites During Catheter Mapping and Radiofrequency Ablation of Ventricular Tachycardia Late After Myocardial Infarction
Criteria for identifying reentry circuit sites using computer simulations was developed and tested during catheter mapping in humans to predict sites at which radiofequency current application terminated ventricular tachycardia.
Effect of Recording Site on Postpacing Interval Measurement During Catheter Mapping and Entrainment of Postinfarction Ventricular Tachycardia
The objective of this study is to determine if the PPI‐VTCL difference measured at the mapping catheter electrodes proximal to the stimulating electrode accurately predicts the P PI‐V TCL difference at the stimulating electrodes.
Identification and Ablation of Three Types of Ventricular Tachycardia Involving the His‐Purkinje System in Patients with Heart Disease
Introduction: Ventricular tachycardia (VT) with involvement of the His‐Purkinje system (HPS) can be difficult to recognize in patients with heart disease, but it may be particularly susceptible to