Atrioventricular Reentrant Tachycardia is an arrhythmia that is regular and fast (150-250 bpm). There are two variations: orthodromic and antidromic. The orthodromic rhythm features a re-entry circuit where the impulse travels from AV node to ventricles then back through an accessory bundle to the atria again. This results in a P wave followed by a narrow QRS complex. The antidromic variant is the opposite direction.
See also: Atrial Rhythms
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- Alila Medical Media (2018) - Wolff-Parkinson-White Syndrome Pathophysiology, Pre-Excitation and AVRT, Animation, (Accessed: 30/06/2019)
- Anna Pickens (2013) - Approach to Tachyarrhythmias: "EM in 5", (Accessed: 11/08/2019)