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| http://dx.doi.org/10.1016/j.hrcr.2022.10.009 | DOI Listing |
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Electrophysiologic mechanism and ablation strategy for macroreentrant biatrial tachycardias after Cox-maze procedures.
Heart Rhythm
October 2024
Boston Scientific China, Shanghai, China.
Background: Different types of recurrent atrial tachycardia (AT) after Cox-maze procedures have been reported, whereas biatrial tachycardia (BiAT) has not been systematically analyzed.
Objective: In this study, we retrospectively investigated the electrophysiologic characteristics of BiAT after Cox-maze procedures by use of an ultrahigh-density mapping system.
Methods: Of a consecutive 76 patients who underwent catheter ablation of AT after Cox-maze procedures, 12 BiATs were identified.
Surgical options for atrial fibrillation treatment during concomitant cardiac procedures.
Ann Cardiothorac Surg
March 2024
Department of Cardiac Surgery, Spedali Civili di Brescia, University of Brescia, Brescia, Italy.
Current guidelines recommend concomitant surgical ablation (SA) of atrial fibrillation (AF) in the context of mitral valve disease. A variety of energy sources have been tested for SA to perform effective transmural lesions reliably. To date, only radiofrequency and cryothermy energies are considered viable options.
View Article and Find Full Text PDFBurning bridges: Ablation of a Bi-atrial macro-reentrant tachycardia conducting via Bachman's bundle and the Marshall bundle complex.
Indian Pacing Electrophysiol J
November 2023
Pennsylvania State University College of Medicine, Hershey, PA, 17036, USA. Electronic address:
Unidirectional conduction characterizing epicardial connections in patients with atrial tachyarrhythmias.
J Cardiovasc Electrophysiol
November 2023
Department of Cardiology, Ibaraki Prefectural Central Hospital, Kasama, Japan.
Introduction: Electrophysiological characteristics of epicardial connections (ECs) in atria and pulmonary veins (PVs) are unclear despite their important contributions to atrial fibrillation (AF). Unidirectional conduction associated with source-sink mismatch can occur in ECs due to their fine fibers with abrupt changes in orientation. We detailed the prevalence and electrophysiological characteristics of unidirectional conduction in the atria and investigated its association with the clinical manifestation of AF.
View Article and Find Full Text PDFEpicardial mapping and ablation of biatrial macroreentrant tachycardia via Bachmann's bundle.
J Cardiovasc Electrophysiol
June 2023
Faculty of Medicine, Department of Cardiology, Hacettepe University, Ankara, Turkey.
Introduction: Recent reports highlighted the role of epicardial connections in the development of biatrial tachycardia circuits.
Methods: We reported a case of 60-year-old female patient who was admitted with recurrent atrial tachycardia (AT) after endocardial pulmonary vein isolation and anterior mitral line formation.
Results: Epicardial activation map demonstrated fragmented continuous potentials at the Bachmann's bundle region with good entrainment response.
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