2022年11月18日 · Slow-Fast AVNRT (Common AVNRT) Accounts for 80-90% of AVNRT Associated with Slow AV nodal pathway for anterograde conduction and Fast AV nodal pathway for retrograde conduction.

2024年10月5日 · Atrioventricular nodal reentry tachycardia (AVNRT) is a type of irregular heartbeat, also called an arrhythmia. It is the most common type of supraventricular tachycardia. People with AVNRT have an irregularly fast heartbeat that often starts and ends suddenly.

2023年8月7日 · Close to 60% of the paroxysmal supraventricular tachycardia is AVNRT, with approximately two-thirds of that in women. A study found that the majority of patients presenting with symptoms due to AVNRT are in their twenties, but some patients might present with AVNRT in their seventh or eighth decade.

2024年10月8日 · Fast-Slow AVNRT: Narrow complex tachycardia ~ 135 bpm. Retrograde P waves following each QRS complex — upright in aVR and V1; inverted in II, III and aVL.

The three types of AVNRT are now discussed (illustrated in Figure 2). Typical AVNRT (slow-fast): 90% of all cases of AVNRT. In typical AVNRT the pathway with antegrade conduction is the slow pathway, whereas retrograde conduction is fast (hence called slow-fast AVNRT).

2025年2月2日 · Three types of AVNRT have been described: common AVNRT (slow-fast), uncommon AVNRT (fast-slow) and slow-slow AVNRT. It is the most frequent AV nodal reentrant tachycardia, up to 90% of all cases. It presents anterograde conduction through the slow pathway, and retrograde conduction through the fast pathway.

2023年7月30日 · Typical AVNRT, also known as slow-fast AVNRT, is usually identified by the absence of distinguishable P waves, resulting in short RP tachycardia.

2004年1月1日 · In 344 patients, AVNRT using a slow pathway (SP) for antegrade conduction and earliest atrial activation at the superior septum (i.e. retrograde fast pathway) was present in 81.4% (Slow/Fast).

2024年3月11日 · Slow-fast AVNRT is defined by antegrade (forward-moving) conduction moving through the slow AV nodal pathway and retrograde (backward-moving) conduction moving through the fast pathway. This is the most common type of AVNRT.

During sinus rhythm, impulses travel simultaneously through both the fast and slow pathways. That which is transmitted via the fast pathway encounters the end of that of the slow, and the two are cancelled out. This impulse cycles around the two pathways. Its short length gives the accelerated HR. ECG features: AVRT. ECG features: Orthodromic: