AVNRT overview
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
AV nodal reentrant tachycardia is a type of tachycardia (fast rhythm) of the heart. It is one of several types of supraventricular tachycardia (SVT), and like all SVTs the electrical impulse originates proximal to the bundle of HIS. In the case of AVNRT, the electrical impulse originates in the AV node and the immediately surrounding tissue. AVNRT is the most common cause of supraventricular tachycardia.