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Dual Atrioventricular Nodal Pathways Physiology: A Review of Relevant Anatomy,Electrophysiology, and Electrocardiographic Manifestations
Authors:Bhalaghuru Chokkalingam Mani  Behzad B Pavri
Institution:Jefferson Medical College of Thomas Jefferson University, 925 Chestnut Street, Mezzanine, Philadelphia, PA19107
Abstract:More than half a century has passed since the concept of dual atrioventricular (AV) nodal pathways physiology was conceived. Dual AV nodal pathways have been shown to be responsible for many clinical arrhythmia syndromes, most notably AV nodal reentrant tachycardia. Although there has been a considerable amount of research on this topic, the subject of dual AV nodal pathways physiology remains heavily debated and discussed. Despite advances in understanding arrhythmia mechanisms and the widespread use of invasive electrophysiologic studies, there is still disagreement on the anatomy and physiology of the AV node that is the basis of discontinuous antegrade AV conduction. The purpose of this paper is to review the concept of dual AV nodal pathways physiology and its varied electrocardiographic manifestations.
Keywords:dual AV nodal  arrhythmias  physiology  manifestations
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