Dresden 2017 – scientific programme

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DY: Fachverband Dynamik und Statistische Physik

DY 43: Nonlinear Dynamics, Synchronizsation and Chaos

DY 43.8: Talk

Thursday, March 23, 2017, 11:30–11:45, ZEU 118

Synchronizing cardiac activity during ventricular fibrillation — •Henrik tom Wörden — Max-Planck-Institut für Dynamik und Selbstorganisation, Göttingen, Deutschland

Ventricular fibrillation is a lethal condition of the heart which is still not well understood and medicine lacks a suitable treatment. The irregular and fast activation patterns during ventricular fibrillation make it hard to find efficient methods to control the dynamics of the myocardium. In contrast, e.g. monomorphic ventricular tachycardia can often be terminated by local stimulation with a train of uniform electric pulses. While such a local stimulation has a very limited region of influence in ventricular fibrillation, electric far field shocks allow the application of stimuli at many places of the ventricle at once. We demonstrate how the cardiac activity can be synchronized with such pulses and how it modifies the properties of the dynamics in the heterogeneous cardiac tissue.