Vostrikov, V.A., Gorbunov, B.B. and Selishchev, S.V. (2015) Construction of Energy-Optimal Smooth Monophasic Defibrillation Pulse Waveforms Using Cardiomyocyte Membrane Model. Journal of Biomedical Science and Engineering, 8, 625-631.
https://doi.org/10.4236/jbise.2015.89058

has been cited by the following article:

• TITLE: Study of the Impact of Rectangular Current Pulses on the Ten Tusscher-Panfilov Model of Human Ventricular Myocyte

  AUTHORS: Boris B. Gorbunov

  KEYWORDS: Human Ventricular Myocyte Model, Transmembrane Potential, Action Potential, Refractoriness, BeatBox Simulation Environment; Mechanism of Defibrillation

  JOURNAL NAME: Journal of Biomedical Science and Engineering, Vol.10 No.7, July 21, 2017

  ABSTRACT: The behavior of the 2006 ten Tusscher-Panfilov model of human ventricular myocytes under the impact of periodic excitation impulses was studied in the BeatBox simulation environment. The cardiomyocyte model has a limited susceptibility to an forced higher frequency excitation rhythm. A high-frequency excitation rhythm can be forced by gradually increasing the frequency of excitation impulses. The mechanism of defibrillation pulse impact consists of presumably prolonging the refractoriness of cardiomyocytes which undermines their susceptibility for a long time to a forced high-frequency rhythm of fibrillation, as a result for which they hinder the propagation of a fibrillation wave. This is the only mechanism of defibrillation that was identified during the simulation. The threshold energy of a depolarizing defibrillation pulse prolonging the refractoriness of the cardio-myocyte varies depending on a delay relative to the excitation impulse (the excitation cycle phase) in a wide range (the maximum value exceeds the minimum by several thousand times). The results show differences in the mechanisms of impact on a cardiomyocyte between an excitation impulse and a monophasic defibrillation pulse.