Definitions of tachycardia, atrioventricular nodal reentry
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Definition of 'tachycardia, atrioventricular nodal reentry'
U.S. National Library of Medicine
1. tachycardia, atrioventricular nodal reentry Abnormally rapid heartbeats caused by reentry of atrial impulse into the dual (fast and slow) pathways of ATRIOVENTRICULAR NODE. The common type involves a blocked atrial impulse in the slow pathway which reenters the fast pathway in a retrograde direction and simultaneously conducts to the atria and the ventricles leading to rapid HEART RATE of 150-250 beats per minute.