Spatiotemporal Dynamics of Damped Propagation in Excitable Cardiac Tissue
Veniamin Y. Sidorov, Rubin R. Aliev, Marcella C. Woods, Franz Baudenbacher, Petra Baudenbacher, and John P. Wikswo
Physical Review Letters, 91 (20) 208104-1-208104-4 (2003)
Compared to steadily propagating waves (SPW), damped waves (DW), another solution to the nonlinear wave equation, are seldom studied. In cardiac tissue after electrical stimulation in an SPW wake, we observe DWwith diminished amplitude and velocity that either gradually decrease as the DW dies, or exhibit a sharp amplitude increase after a delay to become an SPW. The cardiac DW-SPW transition is a key link in understanding defibrillation and stimulation close to the refractory period, and is ideal for a general study of DWdynamics. © 2003 The American Physical Society
Reprinted with permission from American Physical Society, Sidorov,VY, Aliev,RR, Woods,MC, Baudenbacher,F, Baudenbacher,P, Wikswo,JP. Spatiotemporal Dynamics of Damped Propagation in Excitable Cardiac Tissue. Phys.Rev.Lett., 91, 208104-1-208104-4, 2003, © 2003 The American Physical Society This article may be downloaded for personal use only. Any other use requires prior permission of the author and The American Physical Society.
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