Anatomical and spiral wave reentry in a simplified model for atrial electrophysiology

Autor(en): Richter, Yvonne
Lind, Pedro G.
Seemann, Gunnar
Maass, Philipp 
Stichwörter: Anatomical reentry; Atrial fibrillation; Biology; CARDIAC TISSUE; CELL; CURRENTS; FIBRILLATION; INSIGHTS; Life Sciences & Biomedicine - Other Topics; Mathematical & Computational Biology; MATHEMATICAL-MODEL; MECHANISMS; Reaction-diffusion equation; Spiral wave reentry
Erscheinungsdatum: 2017
Herausgeber: ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
Journal: JOURNAL OF THEORETICAL BIOLOGY
Volumen: 419
Startseite: 100
Seitenende: 107
Zusammenfassung: 
For modeling the propagation of action potentials in the human atria, various models have been developed in the past, which take into account in detail the influence of the numerous ionic currents flowing through the cell membrane. Aiming at a simplified description, the Bueno-Orovio-Cherry-Fenton (BOCF) model for electric wave propagation in the ventricle has been adapted recently to atrial physiology. Here, we study this adapted BOCF (aBOCF) model with respect to its capability to accurately generate spatio-temporal excitation patterns found in anatomical and spiral wave reentry. To this end, we compare results of the aBOCF model with the more detailed one proposed by Courtemanche, Ramirez and Nattel (CRN model). We find that characteristic features of the reentrant excitation patterns seen in the CRN model are well captured by the aBOCF model. This opens the possibility to study origins of atrial fibrillation based on a simplified but still reliable description.
ISSN: 00225193
DOI: 10.1016/j.jtbi.2017.02.008

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