Nov 18, 2022 · Sustained reentry occurs over a circuit comprising the AV node, His Bundle, ventricle, accessory pathway and atrium. The various forms of AVNRT can be described in terms of ECG …

Explore AVNRT: Pathways, node function, ECG patterns, and classifications of Typical (Slow-Fast) and Atypical (Fast-Slow) AVNRT.

Learn about Atrioventricular Nodal Reentry (Reentrant) Tachycardia (AVNRT), with emphasis on ECG, clinical features, physiology, management and prognosis.

The figure above demonstrates what AVNRT would look like on an EKG. In A, you can see a normal sinus p wave (green) going through the fast pathway (purple) to activate the Bundle of His for …

Dec 16, 2025 · Atrioventricular nodal reentrant tachycardia (AVNRT) generally requires the existence of dual electrical pathways in the AV node. A discussion of these pathways, as well as the two types of …

Dec 11, 2012 · Typical AVNRT (also described as common AVNRT or slow-fast AVNRT): The impulse travels over the slow pathway towards the ventricles and returns via the fast pathway to the atria.

Nov 20, 2025 · ECG is the primary tool for diagnosing AVNRT. It is non-invasive, widely available, and provides real-time insight into cardiac conduction patterns. Clinicians must know specific ECG …

Jun 5, 2025 · AV Nodal Reentry Tachycardia (AVNRT) is frequently encountered in the emergency department and electrophysiology lab. It arises not from an ectopic focus, but from a reentrant circuit …

AVNRT occurs when a reentrant circuit forms within or just next to the atrioventricular node. The circuit usually involves two anatomical pathways: the fast pathway and the slow pathway, which are both in …

Oct 5, 2024 · Tests used to diagnose atrioventricular nodal reentry tachycardia (AVNRT) may include: Blood tests to see how well the thyroid is working and to check for heart disease or other conditions …