2010年8月24日 · Atrioventricular nodal reentrant tachycardia (AVNRT) represents the most common regular supraventricular arrhythmia in humans. 1 The precise anatomic site and nature of the pathways involved have not yet been established, and several attempts to provide a reasonable hypothesis based on anatomic or anisotropic models have been made. 2 There has ...

Atrioventricular nodal reentrant tachycardia (AVNRT) is caused by a re-entry within the atrioventricular node. In most cases, the re-entry is induced by a premature atrial beat reaching the atrioventricular node while some fibers are still refractory.

Atrioventricular nodal reentrant tachycardia (AVNRT) should be classified as typical or atypical. The term ‘fast-slow AVNRT’ is rather misleading. Retrograde atrial activation during tachycardia should not be relied upon as a diagnostic criterion.

2020年1月14日 · The mechanism behind using premature His complexes (PHCs) to differentiate atrioventricular node reentry tachycardia (AVNRT) and atrioventricular reentry tachycardia (AVRT) is represented diagrammatically at the top. A, Shows the differential effects of a late PHC (≤20 ms ahead of His, represented as a star). AVNRT is represented on the left.

2023年8月7日 · 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).

Non–re-entrant junctional tachycardia (JT) may be difficult to distinguish from typical atrioventricular nodal re-entrant tachycardia (AVNRT) during electrophysiology (EP) study. Although their mechanisms are different, JT and AVNRT are confined to a relatively small anatomic area in and around the AV node, frequently rendering the usual ...

Atrioventricular nodal reentrant tachycardia (AVNRT) is an arrhythmia frequently encountered in an otherwise healthy patient population. Catheter ablation should be considered as an initial treatment choice in symptomatic patients with AVNRT, given the high success rate and low risk for complications.

1997年6月3日 · In patients (group 1) with AVNRT but without manifestation of dual AV nodal pathways during atrial pacing and extrastimulus testing, AH max, ERP of the retrograde AV node, and tachycardia cycle length were significantly shorter than those in patients (groups 2 and 3) with dual AV nodal pathway physiology during either atrial pacing or atrial ...

AVNRT is the most frequent cause of paroxysmal supraventricular tachycardia (SVT) and, rarely, incessant SVT. There are a few case reports describing incessant AVNRT. Among 342 patients treated using ablation for AVNRT, we identified 8 patients with incessant AVNRT (2.3%).

2023年3月5日 · Atrioventricular nodal reentrant tachycardia (AVNRT) results from dual atrio-ventricular (AV) nodal pathways; fast and slow. Which are demonstrated during an electrophysiology study (EPS), and rarely recorded on electrocardiogram (ECG) …