Related Experiment Video
Updated: Aug 11, 2026

Electrophysiological Assessment of Murine Atria with High-Resolution Optical Mapping
Published on: February 22, 2018
Reentrant tachycardia using two discrete atrioventricular nodes and a concealed atriofascicular pathway
A M Dubin1, K Desai, G F Van Hare
1Stanford University, Stanford, CA, USA. amdubin@leland.stanford.edu
Abstract:
We describe a case of reentrant supraventricular tachycardia using two discrete atrioventricular (AV) nodes in the antegrade direction and a concealed atriofascicular pathway in the retrograde direction in a 21-year-old woman with superior-inferior ventricles and ventricular inversion. Using the Carto endocardial mapping system, two discrete AV nodes were identified as well as a separate decremental AV pathway located midway between the two nodes. Ablation of the separate pathway resulted in elimination of inducible tachycardia without loss of either AV node.
More Related Videos
06:57Ablation of Ischemic Ventricular Tachycardia Using a Multipolar Catheter and 3-dimensional Mapping System for High-density Electro-anatomical Reconstruction
Published on: January 31, 2019
08:05Optimization of Transesophageal Atrial Pacing to Assess Atrial Fibrillation Susceptibility in Mice
Published on: June 29, 2022
Related Concept Videos
Conduction System of the Heart
The pacemaker cells are located in two primary nodes: the sinoatrial (SA) node and the atrioventricular (AV) node. The SA node pacemaker cells can autonomously depolarize, triggering an action potential that leads to the...
Disturbances in Heart Rhythm
Arrhythmias are categorized by their speed, rhythm, and origin. A slow heart...
Conduction System of the Heart
This system relies on the unique properties of nodal and Purkinje cells:...
Dysrhythmias II: Classification of Tachyarrhythmias
Dysrhythmias III: Characteristics of Dysrhythmias
Dysrhythmias IV: Characteristics of Bradyarrhythmias