Nonlinear and stochastic dynamics in the heart

Z Qu, G Hu, A Garfinkel, JN Weiss - Physics reports, 2014 - Elsevier
In a normal human life span, the heart beats about 2–3 billion times. Under diseased
conditions, a heart may lose its normal rhythm and degenerate suddenly into much faster …

Power supplies for cardiovascular implantable electronic devices

J Deng, X Sun, H Peng - EcoMat, 2023 - Wiley Online Library
The use of cardiovascular implantable electronic devices (CIEDs) has proved to be the most
successful device‐based therapy to reduce morbidity and mortality of cardiovascular …

Low-energy control of electrical turbulence in the heart

S Luther, FH Fenton, BG Kornreich, A Squires, P Bittihn… - Nature, 2011 - nature.com
Controlling the complex spatio-temporal dynamics underlying life-threatening cardiac
arrhythmias such as fibrillation is extremely difficult, because of the nonlinear interaction of …

Electromechanical vortex filaments during cardiac fibrillation

J Christoph, M Chebbok, C Richter… - Nature, 2018 - nature.com
The self-organized dynamics of vortex-like rotating waves, which are also known as scroll
waves, are the basis of the formation of complex spatiotemporal patterns in many excitable …

The physics of heart rhythm disorders

WJ Rappel - Physics reports, 2022 - Elsevier
The global burden caused by cardiovascular disease is substantial, with heart disease
representing the most common cause of death around the world. There remains a need to …

Computational modeling of the human atrial anatomy and electrophysiology

O Dössel, MW Krueger, FM Weber, M Wilhelms… - Medical & biological …, 2012 - Springer
This review article gives a comprehensive survey of the progress made in computational
modeling of the human atria during the last 10 years. Modeling the anatomy has emerged …

Effects of pacing site and stimulation history on alternans dynamics and the development of complex spatiotemporal patterns in cardiac tissue

A Gizzi, EM Cherry, RF Gilmour Jr, S Luther… - Frontiers in …, 2013 - frontiersin.org
Alternans of action potential duration has been associated with T wave alternans and the
development of arrhythmias because it produces large gradients of repolarization. However …

Drift and termination of spiral waves in optogenetically modified cardiac tissue at sub-threshold illumination

S Hussaini, V Venkatesan, V Biasci… - Elife, 2021 - elifesciences.org
The development of new approaches to control cardiac arrhythmias requires a deep
understanding of spiral wave dynamics. Optogenetics offers new possibilities for this …

Nonlinear physics of electrical wave propagation in the heart: a review

S Alonso, M Bär, B Echebarria - Reports on Progress in Physics, 2016 - iopscience.iop.org
The beating of the heart is a synchronized contraction of muscle cells (myocytes) that is
triggered by a periodic sequence of electrical waves (action potentials) originating in the …

Physics of cardiac arrhythmogenesis

A Karma - Annu. Rev. Condens. Matter Phys., 2013 - annualreviews.org
A normal heartbeat is orchestrated by the stable propagation of an excitation wave that
produces an orderly contraction. In contrast, wave turbulence in the ventricles, clinically …