Nov 18, 2022 · AVNRT is caused by a reentry circuit in or around the AV node. The circuit is formed by the creation of two pathways forming the re-entrant circuit, namely the slow and fast pathways.

ECG features of Atrioventricular Nodal Reentrant Tachycardia (AVNRT). There are three types of AVNRT and the difference between them lies in the configuration of the re-entry circuit. Virtually all cases of AVNRT are characterized by having one fast and one slow pathway.

Atrioventricular Re-entry Tachycardia (AVRT) is a form of paroxysmal supraventricular tachycardia that occurs in patients with accessory pathways, usually due to formation of a re-entry circuit between the AV node and accessory pathway. ECG features depend on the direction of conduction, which can be orthodromic or antidromic.

Feb 2, 2025 · Reentrant atrioventricular nodal tachycardia (AVNRT), it is the most frequent supraventricular paroxysmal tachycardia in healthy hearts, and may represent 60% of them 1. It is more frequent in women and in intermediate ages especially between 40-50 years.

ECG features: Orthodromic: Narrow complex tachycardia 200-300bpm; P waves hidden in QRS complexes or retrograde Inverted inferior and Lead I P waves indicate left sided pathway; T wave inversion; ST depression; Antidromic: Wide complex tachycardia 200-300bpm

Aug 7, 2023 · Atrioventricular nodal reentrant tachycardia (AVNRT) is a type of paroxysmal supraventricular tachycardia that results due to the presence of a re-entry circuit within or adjacent to the AV node. The diagnosis of AVNRT requires visualization of an electrocardiogram (ECG).

Dec 11, 2012 · AV Nodal Re-entry Tachycardia (AVNRT) or Atrial-Ventricular Nodal Re-entry Tachycardia is a supra-ventricular arrhythmia, and more precisely, a nodal arrhythmia. AVNRT is the most frequently occurring form of regular tachycardia. More females than males have signs of AVNRT. The ratio is approximately 3:1.

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

Atrioventricular nodal reentrant tachycardia (AVNRT) is caused by a reentrant loop within the atrioventricular node. With AVNRT, the atrioventricular node has two pathways, fast and slow, which allows for a reentrant loop.

Jul 30, 2024 · The rhythm is AV nodal reentry tachycardia (AVNRT), which is one of the rhythms that falls into the category of paroxysmal supraventricular tachycardia (PSVT). We can see signs of retrograde P waves in some leads (II, III, aVF, V1). …