ArticleJournal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing2024
Activation pattern within Koch's triangle during sinus rhythm in patients with and without atrioventricular nodal reentrant tachycardia.
Article in Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Voltage-Gradient Mapping-Guided Slow Pathway Ablation in Typical Atrioventricular Nodal Re-Entrant Tachycardia.Pacing and clinical electrophysiology : PACE · 2025Article
- Usefulness of the ripple map and late annotation mapping to visualize an activation pattern within Koch's triangle in a patient with persistent left superior vena cava.Journal of arrhythmia · 2025Article
- A novel ablation strategy of slow/fast atrioventricular nodal reentrant tachycardia targeting the atrial activation focusing point at the inferior Koch's triangle: Identification of entrance site of slow pathway using high-resolution 3D mapping.Journal of arrhythmia · 2025Article
- Comparative utility of omnipolar and bipolar electroanatomic mapping methods to detect and localize dual nodal substrate in patients with atrioventricular nodal reentrant tachycardia.Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing · 2024Article
- Pivoting turn-around activation guided successful slow pathway ablation in the cavotricuspid isthmus.Indian pacing and electrophysiology journalArticle
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2 authors.
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Abstract
backgroundSeveral studies have visualized the slow pathway during sinus rhythm using high-density mapping of Koch's triangle (KT) in patients with atrioventricular nodal reentrant tachycardia (AVNRT). However, it is unclear whether the slow pathway can be visualized in all people. Therefore, we evaluated the activation pattern within KT during sinus rhythm in patients with and without AVNRT.
methodsHigh-density mapping using the Advisor HD Grid mapping catheter (Abbott) within KT during sinus rhythm was created in 10 patients with slow-fast AVNRT and 30 patients without AVNRT.
resultsIn 8 (80%) patients with AVNRT, the activation pattern pivoting around a block line (BL) within KT was observed. In 12 (40%) patients without AVNRT, similar activation pattern pivoting around BL was observed, but jump was observed in 11 (92%) of these patients. In all patients, the activation pattern pivoting around BL was observed in 17 (85%) of 20 patients with jump, but only 3 (15%) of 20 patients without jump (p < 0.0001). During jump, there was a long period of no potential from the last atrial potential within KT to the His bundle potential, suggesting the slow pathway conduction through the rightward inferior extension that cannot be visualized. A linear ablation between the pivot point and the septal tricuspid annulus was successful for slow-fast AVNRT.
conclusionAlthough the slow pathway could not be visualized using high-density mapping during sinus rhythm, the activation pattern pivoting around BL within KT was observed in most patients with the dual pathway physiology, with or without AVNRT.
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