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| http://dx.doi.org/10.1016/j.hrcr.2018.08.003 | DOI Listing |
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In the case of adenosine-sensitive atrial tachycardia originating near the atrioventricular (AV) node, overdrive pacing from the anterior right atrium showed constant and progressive fusion, indicating that the pacing site is proximal to slow conduction. Shortening the pacing cycle length prolonged conduction times to the orthodromic capture sites; they remained unchanged at the antidromic capture sites. Limited decremental conduction property in the slow conduction zone supports the hypothesis that AV node-like tissue remnants along the AV annulus are involved.
View Article and Find Full Text PDFA rare case of adenosine-sensitive atrial tachycardia originating at the mitral annulus's anterior septum.
HeartRhythm Case Rep
August 2024
Division of Cardiology, Department of Medicine, Showa University School of Medicine, Tokyo, Japan.
Target potential for ablation in adenosine-sensitive atrial tachycardia originating from the vicinity of the atrioventricular node identified by the LUMIPOINT software.
HeartRhythm Case Rep
March 2024
Department of Cardiovascular Medicine, Kanazawa University Graduate School of Medical Sciences, Ishikawa, Japan.
Adenosine-sensitive perinodal atrial tachycardia. What is the mechanism?
Indian Pacing Electrophysiol J
March 2023
Department of Cardiology, Holy Family Hospital, Mumbai, India.
Termination of focal atrial tachycardia with adenosine is considered a defining feature for triggered activity. Recent evidence, however, suggests that the perinodal adenosine-sensitive AT has reentry as the mechanism of tachycardia. In this report, we were able to confirm the mechanism of AT as reentry by observing the response to programmed electrical stimulation and demonstrating the fallacy of traditional teaching that the adenosine responsiveness of AT is a criterion for labeling the mechanism as triggered activity.
View Article and Find Full Text PDFAtrioventricular Ring Tachycardias: Atypical Fast-Slow Atrioventricular Nodal Reentrant Tachycardia and Atrial Tachycardia Share a Common Arrhythmogenic Substrate-A Unifying Proposal.
Rev Cardiovasc Med
November 2022
Department of Cardiovascular Medicine, Gunma University Graduate School of Medicine, Maebashi, 371-8511 Gunma, Japan.
Our understanding of the variants of slow pathway (SP) and associated atypical atrioventricular (AV) nodal reentrant tachycardia (NRT) is still growing. We have identified variants extending outside Koch's triangle along the tricuspid annulus, including superior, superoanterior and inferolateral right atrial SP and associated atypical, fast-slow AVNRT. We review the history of each variant, their electrophysiological characteristics and related atypical AVNRT, and their treatment by catheter ablation.
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