Focal Atrial Tachycardia Surrounding the Anterior Septum
نویسندگان
چکیده
F ocal atrial tachycardias (ATs) surrounding the region of the anterior atrial septum (AAS) and their characteristic P waves, electrophysiological characteristics and catheter abla-tion results have been the subject of previous reports. 1–10 The close proximity to the atrioventricular (AV) node and the complex anatomy of this region continue to pose challenges during catheter ablation, and although successful ablation sites include the right anterior atrial septum (RAS),
منابع مشابه
Focal atrial tachycardia surrounding the anterior septum: strategy for mapping and catheter ablation.
BACKGROUND Focal atrial tachycardias (ATs) surrounding the anterior atrial septum (AAS) have been successfully ablated from the right atrial septum (RAS), the aortic cusps, and the aortic mitral junction. However, the strategy for mapping and ablation of AAS-ATs has not been well defined. METHODS AND RESULTS Of 227 consecutive patients with AT, 47 (20.7%; mean age, 56.3±11.6 years) with AAS-A...
متن کاملMapping Strategies in Focal Atrial Tachycardias Demonstrating Early Septal Activation: Distinguishing Left From Right
Determining the chamber of origin of focal atrial tachycardias (FATs) arising at or close to the septum might require biatrial mapping. This review focuses on the available tools and methods used to distinguish right atrial from left atrial origin before left atrial access is obtained. These include analysis of P wave morphology, assessing the timing of right atrial septal activation, the seque...
متن کاملAcute effects of left atrial radiofrequency ablation on atrial fibrillation.
INTRODUCTION Acutely, when left atrial ablation is performed during atrial fibrillation (AF), the AF may persist and require cardioversion, or it may convert to sinus rhythm or to atrial tachycardia/flutter. The prevalence of these acute outcomes has not been described. METHODS AND RESULTS Left atrial ablation, usually including encirclement of the pulmonary veins, was performed during AF in ...
متن کاملSuccesful Radiofrequency Ablation of Atrial Tachycardia Arising From Within the Coronary Venous Sinus
Focal atrial tachycardia (AT) though a relatively uncommon cause of supraventricular tachycardia is difficult to control with antiarrythmic drugs. With the advent of radiofrequency ablation (RFA), this form of tachycardia can be treated with high long-term success [1]. These foci tend to cluster at specific anatomic locations. In the right atrium, these foci occur along the crista terminalis, t...
متن کاملImages and Case Reports in Arrhythmia and Electrophysiology Restoration of Sinus Rhythm by Incarceration, not Elimination, of Focal Atrial Tachycardia in Left Atrial Substrate Post Atrial Fibrillation Ablation
While diseased regions of the atrial body commonly behave as a substrate maintaining atrial fibrillation (AF), these areas can uncommonly behave as trigger foci for atrial tachycardia (AT),1 particularly after previous ablation. Unlike venous triggers, the goal of ablation for these focal ATs is normally elimination of the tachycardia source, rather than complete isolation. We present a case of...
متن کامل