2020年7月1日 · Ablating the slow pathway (SP) is the superior treatment for atrioventricular nodal reentrant tachycardia (AVNRT) with a low complication rate. However, the ablation of the SP could result in either complete elimination or modification of the SP.

We aimed to investigate whether the duration of AH jump pre-ablation associated with the outcome of elimination of SP. Methods: We included 56 patients with typical AVNRT (slow-fast), 20 males and 36 females, aged 44.2 ± 15.1 years. Slow pathway ablation was performed using classical approach.

1997年6月3日 · Sustained typical AVNRT was induced during incremental atrial pacing and/or atrial extrastimulus testing in all patients before ablation. No dual AV nodal pathway physiology was present during one and double atrial extrastimulus testing, but an AH “jump” occurred during incremental atrial pacing (Fig 4).

2018年3月1日 · We aimed to study the correlation between the sudden prolongations of the AH interval by ≥ 50 ms during burst atrial pacing and during programmed atrial stimulation in patients with AVNRT, and to define whether the AH jump during burst atrial pacing can serve as a reliable diagnostic criterion for the presence of dual AV nodal physiology, as ...

2021年6月23日 · The presence of dual AV nodal pathways is demonstrated by the presence of a sudden prolongation of the AH interval (‘AH jump’) during electrophysiologic testing. An increase of ≥50 ms in the AH interval with a decrement in the A1A2 interval of 10 ms, is defined by convention as a change in antegrade conduction from the ‘fast’ to the ...

Background: Some patients with atrioventricular nodal reentrant tachycardia (AVNRT) demonstrate multiple discontinuities (AH jump) in their antegrade AV node conduction curves. We evaluated and compared the immediate success rates, procedure-related complications, long-term clinical follow-up results and recurrence rates after slow pathway ...

Introduction: Dual atrioventricular (AV) nodal physiology, defined as an AH jump > or =50 msec with a 10 msec decrease in A1A2, is the substrate for atrioventricular nodal reentrant tachycardia (AVNRT) and yet it is present in a minority of pediatric patients with AVNRT.

This study proved that the length of AH jump pre-ablation is an independent predictor of slow pathway elimination during AVNRT ablation. Patients with the length of AH jump of ≥100 ms had a 6.14 times higher probability for a complete elimination of the slow pathway as compared to patients with AH jump of <100 ms. Authors’ contributions •

2015年7月1日 · Results: Acute successful AVNRT ablation was achieved in 39 (100%) patients, including 23 (59%) with slow pathway (SP) ablation and 16 (41%) with SP modification. Patients with SP modification...

2017年2月28日 · AH jump: With a 10 ms decrease in the extrastimulus (A-A) coupling interval, there is a ≥50 ms increase in the AH interval. • This occurs when the fast pathway ERP is reached and conduction switches to the slow pathway.