Accelerated Junctional Rhythm (AJR) • LITFL • ECG Library …
2024年10月8日 · Accelerated junctional rhythm (AJR) occurs when the rate of an AV junctional pacemaker exceeds that of the sinus node. This situation arises when there is increased automaticity in the AV node coupled with decreased automaticity in the sinus node. Retrograde P waves may be present and can appear before, during or after the QRS complex.
Junctional Tachycardia: - JACC: Clinical Electrophysiology
Junctional tachycardia (JT) is typically considered to have an automatic mechanism originating from the distal atrioventricular node. When there is 1:1 retrograde conduction via the fast pathway, JT would resemble the typical form of atrioventricular nodal re-entrant tachycardia (AVNRT).
Automatic tachycardia - Wikipedia
Automatic junctional tachycardia is a type of tachyarrhythmia that originates in the atrioventricular node and His bundle area. It can be referred to as junctional tachycardia, focal junctional tachycardia, or Junctional Ectopic Tachycardia (JET). [10] Patients' heart rates are frequently between 200 and 250 beats per minute.
Differentiating Junctional Tachycardia and Atrioventricular Node …
We describe a technique, using a single premature atrial complex (PAC) introduced during tachycardia, that can be helpful in differentiating JT and AVNRT in adult patients. We hypothesized that JT and AVNRT will have specific responses to PACs delivered at different phases of the tachycardia cycle.
Junctional Tachycardia: Causes, Symptoms and Treatment - Cleveland Clinic
Junctional tachycardia is a rare, fast heart rhythm that starts in the wrong place in your heart. Treatments include medicines, using an external pacemaker to correct your heart rhythm or a catheter ablation to keep the wrong signal from traveling.
Junctional tachycardia - Wikipedia
Junctional tachycardia is a form of supraventricular tachycardia characterized by involvement of the AV node. [1] It can be contrasted to atrial tachycardia. It is a tachycardia associated with the generation of impulses in a focus in the region of the atrioventricular node due to an A-V disassociation. [2]
Junctional rhythm (escape rhythm) and junctional tachycardia …
Junctional tachycardia is caused by abnormal automaticity in the atrioventricular node, cells near the atrioventricular node or cells in the bundle of His. It is very rare among adults and elderly, but is relatively common in children.
Junctional Tachycardia: A Critical Reassessment
Junctional tachycardia (JT) is typically considered to have an automatic mechanism originating from the distal atrioventricular node. When there is 1:1 retrograde conduction via the fast pathway, JT would resemble the typical form of atrioventricular nodal re-entrant tachycardia (AVNRT).
Junctional Tachycardia: A Critical Reassessment - ScienceDirect
2023年3月1日 · Junctional tachycardia (JT) is typically considered to have an automatic mechanism originating from the distal atrioventricular node. When there is 1:1 retrograde conduction via the fast pathway, JT would resemble the typical form of atrioventricular nodal re-entrant tachycardia (AVNRT).
Clinical and electrophysiologic characterization of automatic ...
Five adults with rapid symptomatic paroxysmal junctional tachycardia, distinct from the more common slower nonparoxysmal junctional tachycardia, were recently evaluated. The tachycardia was irregular (rate 120 to 250) and accompanied by periods of atrioventricular dissociation and narrow QRS complexes.