Learn More
BACKGROUND The purpose of this study was to conduct a worldwide survey investigating the methods, efficacy, and safety of catheter ablation (CA) of atrial fibrillation (AF). METHODS AND RESULTS A detailed questionnaire was sent to 777 centers worldwide. Data relevant to the study purpose were collected from 181 centers, of which 100 had ongoing programs(More)
BACKGROUND The purpose of this study was to provide an updated worldwide report on the methods, efficacy, and safety of catheter ablation of atrial fibrillation (AF). METHODS AND RESULTS A questionnaire with 46 questions was sent to 521 centers from 24 countries in 4 continents. Complete interviews were collected from 182 centers, of which 85 reported to(More)
n engl j med 358;19 www.nejm.org may 8, 2008 2078 disorder was characterized by autosomal dominant inheritance. Given the propensity for sudden death during sympathetic stimulation in the absence of structural heart disease, catecholaminergic polymorphic ventricular tachycardia was considered to be the likely diagnosis. Sequencing of the cardiac ryanodine(More)
OBJECTIVES The purpose of this study was to provide a systematic multicenter survey on the incidence and causes of death occurring in the setting of or as a consequence of catheter ablation (CA) of atrial fibrillation (AF). BACKGROUND CA of AF is considered to be generally safe. However, serious complications, including death, have been reported. (More)
AIMS The aim of the present study was to identify specific electrocardiogram (ECG) features that predict the development of multiple episodes of ventricular fibrillation (VF) in patients with an early repolarization (ER) pattern and to compare the mode of VF initiation with that observed in typical cases of Brugada syndrome (BrS). METHODS AND RESULTS The(More)
BACKGROUND Atrial-based pacing is associated with lower risk of atrial fibrillation (AF) in sick sinus syndrome compared with ventricular pacing; nevertheless, the impact of site and rate of atrial pacing on progression of AF remains unclear. We evaluated whether long-term atrial pacing at the right atrial (RA) appendage versus the low RA septum with (ON)(More)
AIMS The present study investigated the detailed mechanism by which fractalkine (Fkn), a CX3C chemokine, induces angiogenesis and its functional implication in alleviating ischaemia in vivo. METHODS AND RESULTS Fkn induced new vessel formation on the excised rat aorta and chick chorioallantoic membrane (CAM) through CX3CR1 activation. Immunoblotting(More)
BACKGROUND Atrial tachyarrhythmias (ATA) frequently develop during catheter ablation of atrial fibrillation (AF), but the mechanism of ATA during combined pulmonary vein isolation (PVI) and complex fractionated electrogram-guided ablation (CFEA) has not been reported. METHODS AND RESULTS This study involved 105 patients with symptomatic, drug-refractory(More)
BACKGROUND The long-term prognosis of patients with variant angina presenting with aborted sudden cardiac death (ASCD) is unknown. OBJECTIVES The purpose of this study was to evaluate the long-term mortality and ventricular tachyarrhythmic events of variant angina with and without ASCD. METHODS Between March 1996 and September 2014, 188 patients with(More)
INTRODUCTION The circadian and seasonal patterns of ventricular tachyarrhythmia (VTA) in patients with early repolarization syndrome (ERS) have not been determined. We compared the timing of VTAs in patients with ERS and Brugada syndrome (BS). METHODS AND RESULTS We enrolled patients with ERS (n = 14) and BS (n = 53) who underwent implantable cardioverter(More)