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KMID : 1011920110120010010
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International Journal of Arrhythmia
2011 Volume.12 No. 1 p.10 ~ p.13
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Mechanism of SVT (AVNRT)
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Choi Kee-Joon
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Abstract
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AVNRT (atrioventricular nodal reentry/reentrant tachycardia) is the most common paroxysmal supraventricular tachycardia among adults, and accounts for considerable morbidity. The concept of dual pathway physiology remains useful, although this physiology likely results from the functional properties of anisotropic tissue within the triangle of Koch, rather than anatomically distinct tracts of conduction. The slow/fast variant is known as common or typical AVNRT. The slow AV nodal pathway is used for anterograde conduction while the fast pathway is used for retrograde conduction.
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KEYWORD
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atrioventricular nodal reentry tachycardia, slow pathway, fast pathway
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