Tachycardia, Atrioventricular Nodal Reentry

**Definition:** 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.

**Tree numbers:** - C14.280.067.845.787.249 - C14.280.123.875.787.249 - C23.550.073.845.787.500

**Synonyms:** - Atrioventricular Reentrant Tachycardia - Atrioventricular Nodal Re-Entrant Tachycardia - Atrioventricular Nodal Reentrant Tachycardia - Atrioventricular Nodal Reentry Tachycardia - AV Nodal Reentrant Tachycardia - Tachycardia, AV Nodal Reentrant