Suppression of Spiral Waves and Spatiotemporal Chaos in Cardiac Tissues with Controll of Calcium and Potassium Ionic Currents

CHINESE JOURNAL OF COMPUTATIONAL PHYSICS ›› 2011, Vol. 28 ›› Issue (1): 119-124.

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Suppression of Spiral Waves and Spatiotemporal Chaos in Cardiac Tissues with Controll of Calcium and Potassium Ionic Currents

ZHONG Min, TANG Guoning

College of Physical and Technology, Guangxi Normal University, Guangxi, Guilin 541004, China

Received:2009-11-16 Revised:2010-03-04 Online:2011-01-25 Published:2011-01-25

Abstract

Abstract: Suppression of spiral waves and spatiotemporal chaos in cardiac tissues described by LuoRudy 91 model are studied.We suggest a control strategy which applys calcium channel agonist to enlarge maximum conductivity of calcium current,and applys potassium channel blocker to reduce maximum conductivity of potassium current,for suppression of spiral waves and spatiotemporal chaos.It shows that the method can effectively suppress spiral waves and spatiotemporal chaos even if there exist defects without function of diffusion in a medium.The control mechanism is analyzed.

Key words: spiral wave, spatiotemporal chaos, ionic current

CLC Number:

O415.5

ZHONG Min, TANG Guoning. Suppression of Spiral Waves and Spatiotemporal Chaos in Cardiac Tissues with Controll of Calcium and Potassium Ionic Currents[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 2011, 28(1): 119-124.

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Suppression of Spiral Waves and Spatiotemporal Chaos in Cardiac Tissues with Controll of Calcium and Potassium Ionic Currents

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