Abstract
There may be many reasons why irregular functioning of the pacemaking mechanisms can occur. Both sympathetic and parasympathetic activity on the SAN and AVN have been linked to abnormal functionality and the genesis of atrial arrhythmias. One such mechanism by which they may do so is to cause a shift in the leading pacemaker site away from the centre of the SAN. AV-nodal rhythms occur either during periods of SAN dysfunction or AVN dysfunction, such as severe sinus bradycardia or AV-nodal re-entrant tachycardias. Hence, the ability to detect and characterise the presence of AV-nodal rhythms is of great importance.
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Colman, M.A. (2014). Pacemaking and Autonomic Regulation in the 3D Sinoatrial Node and Atria. In: Mechanisms of Atrial Arrhythmias. Springer Theses. Springer, Cham. https://doi.org/10.1007/978-3-319-01643-6_7
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DOI: https://doi.org/10.1007/978-3-319-01643-6_7
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