Introduction The right atrium (RA) is readily accessible; however, it is unclear whether
changes in the RA are representative of the LA. We performed detailed biatrial …

BACKGROUND: The regional distribution of the low-voltage zones (LVZs) may relate to the
maintenance of atrial arrhythmias in the right atrium (RA). OBJECTIVES: The purpose of this …

Atrial Anatomical Contact Area and Circular Activation Introduction Atrial low‐voltage zones
(LVZs) may be related to maintenance of atrial fibrillation (AF). The influence of left atrial (LA) …

Objective The purpose of this study is to explore the left atrium (LA) electrophysiologic
abnormalities in atrial fibrillation (AF) patients detected during sinus rhythm and to determine …

Substrate Properties Between Vagal and Sympathetic Types of AF Introduction Autonomic
modulation of the cardiac activity plays an important role in the pathogenesis of atrial …

Background The abnormal conduction zone (ACZ) in the left atrium (LA) has attracted
attention as an arrhythmia source in atrial fibrillation (AF). We investigated the hypothesis …

Background: Atrial low-voltage areas are suggested to be related to maintenance of atrial
fibrillation (AF). The influence of the left atrium (LA) contact area (CoA) has not been …

Objectives: The purpose of this study was to determine whether patients with paroxysmal
“lone” atrial fibrillation (AF) have an abnormal atrial substrate. Background: While “AF begets …

Atrial Remodeling in Atrial Fibrillation. Introduction: The nature of the atrial substrate thought
to contribute toward maintaining atrial fibrillation (AF) outside the pulmonary veins remains …

Multisite Mapping of Dissimilar Atrial Rhythms. We report two patients who had isolated
atrial fibrillation in the left atrium and regular activation of the entire right atrium. Mapping of …