Related Experiment Video
Updated: Jun 7, 2025

Patient-specific Modeling of the Heart: Estimation of Ventricular Fiber Orientations
Published on: January 8, 2013
Influence of conduction heterogeneities on transient spatiotemporal chaos in cardiac excitable media
Melvin Dix1, Thomas Lilienkamp2, Stefan Luther3
1<a href="https://ror.org/0087djs12">Max Planck Institute for Dynamics and Self-Organization</a>, Göttingen, Germany and Institute for the Dynamics of Complex Systems, <a href="https://ror.org/01y9bpm73">Georg-August-Universität Göttingen</a>, Göttingen, Germany.
Abstract:
Life-threatening cardiac arrhythmias such as ventricular fibrillation are often based on chaotic spiral or scroll wave dynamics which can be self-terminating. In this work, we investigate the influence of conduction heterogeneities on the duration of such chaotic transients in generic models of excitable cardiac media. We observe that low and medium densities of heterogeneities extend the average transient lifetime, while at high densities very long transients, potentially persistent chaos, and periodic attractors occur.
More Related Videos
06:40Impact of Intracardiac Neurons on Cardiac Electrophysiology and Arrhythmogenesis in an Ex Vivo Langendorff System
Published on: May 22, 2018
09:35Preclinical Cardiac Electrophysiology Assessment by Dual Voltage and Calcium Optical Mapping of Human Organotypic Cardiac Slices
Published on: June 16, 2020
Related Concept Videos
Electrophysiology of Normal Cardiac Rhythm
Mechanism of Cardiac Arrhythmias
Conduction System of the Heart
This system relies on the unique properties of nodal and Purkinje cells:...
Disturbances in Heart Rhythm
Arrhythmias are categorized by their speed, rhythm, and origin. A slow...
Pathophysiology of Cardiac Performance
Cardiac Action Potential
The cardiac action potential process involves a series of phases characterized by the movement of ions across the cardiac cell membranes, leading to the depolarization and repolarization of the cardiac myocytes.
Ionic Basis of Cardiac Action Potentials