A safe and simple approach to avoid fast junctional rhythm during ablation in patients with atrioventricular nodal reentrant tachycardia

• DOI: 10.1111/jce.14045
• Publication Date: 2019-06-24T04:28:03Z
• Authors: Motomi Tachibana; Kimikazu Banba; Kensuke Matsumoto; Minako Ohara; Satoshi Nagase
• Keywords: Junctional rhythm; Atrioventricular node

Fast junctional rhythm (JR) during slow pathway modification for atrioventricular nodal reentrant tachycardia (AVNRT) is a predictor of serious block. This study investigated the boundary to avoid fast JR ablation with three-dimensional (3D) electroanatomical mapping in AVNRT patients.Participants were 129 consecutive patients common who received anatomical an antegrade at our institution between August 2013 and March 2019. Successfully ablated sites evaluated terms distances angles left right anterior oblique views (LAO RAO, respectively) proximal His bundle (His) site using 3D mapping. We divided by heart rate: JR1 ≥150 bpm JR2 <150 bpm. Average age was 61 ± 16 years; 41.1% male. The distance from most not significantly different (11.9 4.4 vs 10.7 4.5 mm, P = .24). predominantly appeared closer ventricle than LAO (110.5 19.1° 77.5 18.6°, < .01), more posterior RAO (30.8% 6.8%, .01). vertical line drawn down view good indicator appearance (sensitivity specificity 84.6% 81.6%, respectively).The can be employed as AVNRT.