Suppress Winfree Turbulence by Local Forcing Excitable Systems

Hong Zhang, Zhoujian Cao, Ning-Jie Wu, He-Ping Ying, Gang Hu
2005 Physical Review Letters  
The occurrence of Winfree turbulence is currently regarded as one of the principal mechanisms underlying cardiac fibrillation. We develop a local stimulation method that suppresses Winfree turbulence in three-dimensional excitable media. We find that Winfree turbulence can be effectively suppressed by locally injecting periodic signals to only a very small subset (around some surface region) of total space sites. Our method for the first time demonstrates the effectiveness of local
more » ... periodic excitations in suppressing turbulence in 3D excitable media and has fundamental improvements in efficiency, convenience, and turbulence suppression speed compared with previous strategies. Therefore, it has great potential for developing into a practical low-amplitude defibrillation approach.
doi:10.1103/physrevlett.94.188301 pmid:15904413 fatcat:jotfhd4rv5gyzauhvaix6adrte