scholarly journals Controllability of voltage- and calcium-driven cardiac alternans in a map model

2021 ◽  
Vol 31 (2) ◽  
pp. 023139
Author(s):  
Laura M. Muñoz ◽  
Mark O. Ampofo ◽  
Elizabeth M. Cherry
Keyword(s):  
Cardiac Alternans

scholarly journals B-PO02-026 LOCALIZED CARDIAC ALTERNANS PRESAGE VENTRICULAR TACHYARRHYTHMIAS IN OVINE CHRONIC MYOCARDIAL INFARCTION MODEL

Heart Rhythm ◽  
2021 ◽  
Vol 18 (8) ◽  
pp. S105-S106
Author(s):  
Kanchan Kulkarni ◽  
Nestor Pallares-Lupon ◽  
Virginie Loyer ◽  
Stephane Bloquet ◽  
Dounia El Hamrani ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Chronic Myocardial Infarction ◽  
Ventricular Tachyarrhythmias ◽  
Cardiac Alternans

scholarly journals Cardiac Alternans Arising From an Unfolded Border-Collision Bifurcation

2008 ◽  
Vol 3 (4) ◽  
pp. 041004 ◽  
Author(s):  
Xiaopeng Zhao ◽  
David G. Schaeffer ◽  
Carolyn M. Berger ◽  
Wanda Krassowska ◽  
Daniel J. Gauthier
Keyword(s):  
Border Collision Bifurcation ◽  
Cardiac Alternans

Comment on ``Dynamic Control of Cardiac Alternans''

1997 ◽  
Vol 79 (24) ◽  
pp. 4938-4938 ◽  
Author(s):  
Daniel J. Gauthier ◽  
Joshua E. S. Socolar
Keyword(s):  
Dynamic Control ◽  
Cardiac Alternans

Global vs local control of cardiac alternans in a 1D numerical model of human ventricular tissue

2020 ◽  
Vol 30 (8) ◽  
pp. 083123
Author(s):  
Sanket Thakare ◽  
Joseph Mathew ◽  
Sharon Zlochiver ◽  
Xiaopeng Zhao ◽  
Elena G. Tolkacheva
Keyword(s):  
Numerical Model ◽  
Local Control ◽  
Ventricular Tissue ◽  
Cardiac Alternans

scholarly journals Understanding Cardiac Alternans

2004 ◽  
Vol 94 (5) ◽  
pp. 570-572 ◽  
Author(s):  
Karin R. Sipido
Keyword(s):  
Cardiac Alternans

scholarly journals A master stability function approach to cardiac alternans

2019 ◽  
Vol 4 (1) ◽  
Author(s):  
Yi Ming Lai ◽  
Joshua Veasy ◽  
Stephen Coombes ◽  
Rüdiger Thul
Keyword(s):  
Activity Patterns ◽  
Muscle Cells ◽  
Stability Function ◽  
Cardiac Muscle Cells ◽  
Network Nodes ◽  
Master Stability Function ◽  
Synchronous Network ◽  
Cardiac Alternans ◽  
Regular Rhythm ◽  
Network Of Networks

Abstract During a single heartbeat, muscle cells in the heart contract and relax. Under healthy conditions, the behaviour of these muscle cells is almost identical from one beat to the next. However, this regular rhythm can be disturbed giving rise to a variety of cardiac arrhythmias including cardiac alternans. Here, we focus on so-called microscopic calcium alternans and show how their complex spatial patterns can be understood with the help of the master stability function. Our work makes use of the fact that cardiac muscle cells can be conceptualised as a network of networks, and that calcium alternans correspond to an instability of the synchronous network state. In particular, we demonstrate how small changes in the coupling strength between network nodes can give rise to drastically different activity patterns in the network.

Sign in / Sign up

Export Citation Format

Share Document