The Cardiac Conduction System : Generation and Conduction of the Cardiac Impulse - 31/07/16

Doi : 10.1016/j.cnc.2016.04.001

Alan Kennedy, BSc ^a,^⁎ , Dewar D. Finlay, PhD ^a, Daniel Guldenring, PhD ^a, Raymond Bond, PhD ^b, Kieran Moran, PhD ^c, James McLaughlin, PhD ^a
^a The Engineering Research Institute (ERI), School of Engineering, University of Ulster at Jordanstown, Newtownabbey, County Antrim BT37 0QB, Northern Ireland
^b Computing Science Research Instititute, School of Computing and Mathematics, University of Ulster, Room 16G06, Jordanstown Campus, Shore Road, Newtownabbey BT37 0QB, County Antrim, Northern Ireland
^c School of Health and Human Performance, Dublin City University, Room XG05, Glanevin, Dublin 9, Ireland

^∗Corresponding author. University of Ulster, Jordanstown Campus, Shore Road, Newtownabbey BT37 0QB, Co. Antrim, UK.University of UlsterJordanstown CampusShore RoadNewtownabbeyCo. AntrimBT37 OQBUK

Résumé

In this article, the authors outline the key components behind the automated generation of the cardiac impulses and the effect these impulses have on cardiac myocytes. Also, a description of the key components of the normal cardiac conduction system is provided, including the sinoatrial node, the atrioventricular node, the His bundle, the bundle branches, and the Purkinje network. Finally, an outline of how each stage of the cardiac conduction system is represented on the electrocardiogram is described, allowing the reader of the electrocardiogram to translate background information about the normal cardiac conduction system to everyday clinical practice.

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Keywords : Action potential, Cardiac conduction system, Electrocardiogram, Automaticity, Cardiac impulse