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Chaos control applied to cardiac rhythms represented by ECG signals

Borem Ferreira, Bianca ; Amorim Savi, Marcelo ; Souza de Paula, Aline

Physica scripta, 2014-10, Vol.89 (10), p.105203-18 [Periódico revisado por pares]

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Título:
Chaos control applied to cardiac rhythms represented by ECG signals
Autor: Borem Ferreira, Bianca ; Amorim Savi, Marcelo ; Souza de Paula, Aline
Assuntos: biomechanics ; cardiac system ; chaos control ; Chaos theory ; Couplings ; delayed feedback control ; Echocardiography ; Heart ; Mathematical models ; Oscillators ; Rhythm ; Strategy
É parte de: Physica scripta, 2014-10, Vol.89 (10), p.105203-18
Notas: Royal Swedish Academy of Sciences
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Descrição: The control of irregular or chaotic heartbeats is a key issue in cardiology. In this regard, chaos control techniques represent a good alternative since they suggest treatments different from those traditionally used. This paper deals with the application of the extended time-delayed feedback control method to stabilize pathological chaotic heart rhythms. Electrocardiogram (ECG) signals are employed to represent the cardiovascular behavior. A mathematical model is employed to generate ECG signals using three modified Van der Pol oscillators connected with time delay couplings. This model provides results that qualitatively capture the general behavior of the heart. Controlled ECG signals show the ability of the strategy either to control or to suppress the chaotic heart dynamics generating less-critical behaviors.
Editor: IOP Publishing
Idioma: Inglês

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