Abstract:
BACKGROUND:Atrial tachycardias (ATs) are commonly observed following catheter ablation of atrial fibrillation (AF). The aim of this study was to identify ECG characteristics that differentiate focal from macroreentrant ATs after circumferential pulmonary vein isolation (CPVI). METHODS AND RESULTS:One hundred and twenty ATs that occurred after CPVI were mapped using a 3-dimensional mapping system in 87 patients with AF. Further ablation was performed to eliminate the ATs. The surface ECGs of 68 ATs in 41 consecutive patients (Group 1) were analyzed retrospectively to create diagnostic algorithms. The algorithms were tested in the second 46 consecutive patients (Group 2). Patients with macroreentrant AT had lower left atrial (LA) voltage than those with focal AT (1.3 ± 0.3 vs 1.5 ± 0.2 mV, P = 0.01). Focal AT had a higher incidence of a positive polarity in V6 compared with macroreentrant AT (88% vs 55%, P = 0.03). The positive amplitude of the flutter/P waves in V6 was higher for focal AT than macroreentrant AT. The cycle lengths of the focal ATs were longer than those for macroreentrant AT (296 ± 107 vs 244 ± 25 ms, P < 0.001). Right atrial macroreentrant AT had a higher incidence of a negative polarity in at least 1 precordial lead compared with LA macroreentry. The positive flutter waves in V1 could differentiate roof/mitral isthmus dependent from non-roof/mitral isthmus dependent macroreentry. This algorithm correctly differentiated the focal from macroreentrant ATs with a sensitivity of 94%, specificity of 91%, and predictive accuracy of 92% in Group 2. CONCLUSION:Different electrophysiological properties may facilitate the differentiation between macroreentrant and focal ATs after CPVI.
journal_name
J Cardiovasc Electrophysioljournal_title
Journal of cardiovascular electrophysiologyauthors
Chang SL,Tsao HM,Lin YJ,Lo LW,Hu YF,Tuan TC,Tsai WC,Chang CJ,Suenari K,Huang SY,Tai CT,Li CH,Chao TF,Wu TJ,Chen SAdoi
10.1111/j.1540-8167.2010.02002.xsubject
Has Abstractpub_date
2011-07-01 00:00:00pages
748-55issue
7eissn
1045-3873issn
1540-8167journal_volume
22pub_type
杂志文章abstract:BACKGROUND:Atrial fibrillation (AF) significantly reduces health-related quality of life (HRQoL), previously measured in clinical trials using patient-reported outcomes (PROs). We examined AF PROs in clinical practice and their association with subsequent clinical management. METHODS:The Utah My Evaluation (mEVAL) pro...
journal_title:Journal of cardiovascular electrophysiology
pub_type: 杂志文章
doi:10.1111/jce.14795
更新日期:2020-12-01 00:00:00
abstract:INTRODUCTION:We compared the efficacy and safety of amiodarone and dronedarone in patients with persistent atrial fibrillation (AF). METHODS:Five hundred and four amiodarone-naïve patients were randomized to receive dronedarone 400 mg bid (n = 249) or amiodarone 600 mg qd for 28 days then 200 mg qd (n = 255) for at le...
journal_title:Journal of cardiovascular electrophysiology
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1111/j.1540-8167.2010.01764.x
更新日期:2010-06-01 00:00:00
abstract::In an era when many electrophysiologic problems are routinely treated with invasive procedures or implantable devices, drugs remain the cornerstones of treatment for atrial fibrillation. Atrial fibrillation may present as an episodic rhythm in patients who are primarily in sinus rhythm or it may be manifested as rhyth...
journal_title:Journal of cardiovascular electrophysiology
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doi:10.1111/j.1540-8167.1997.tb00841.x
更新日期:1997-07-01 00:00:00
abstract:INTRODUCTION:Bipolar voltage criteria to delineate left atrial (LA) scar have been derived using point-by-point (PBP) contact electroanatomical mapping. It remains unclear how PBP-derived LA scar correlates with multielectrode fast automated mapping (ME-FAM) derived scar. We aimed to correlate scar and bipolar voltages...
journal_title:Journal of cardiovascular electrophysiology
pub_type: 杂志文章
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更新日期:2017-03-01 00:00:00
abstract:INTRODUCTION:Mutations of human ether-à-go-go-related gene (hERG), which encodes a cardiac K(+) channel responsible for the acceleration of the repolarizing phase of an action potential and the prevention of premature action potential regeneration, often cause severe arrhythmic disorders. We found a novel missense muta...
journal_title:Journal of cardiovascular electrophysiology
pub_type: 杂志文章
doi:10.1111/j.1540-8167.2012.02383.x
更新日期:2012-11-01 00:00:00
abstract:UNLABELLED:VT Ablation in Apical Hypertrophic Cardiomyopathy. INTRODUCTION:Monomorphic ventricular tachycardia (VT) is uncommon in apical hypertrophic cardiomyopathy (HCM). The purpose of this study was to define the substrate and role of catheter ablation for VT in apical HCM. METHODS:Four patients with apical HCM ...
journal_title:Journal of cardiovascular electrophysiology
pub_type: 杂志文章
doi:10.1111/j.1540-8167.2010.01875.x
更新日期:2011-01-01 00:00:00
abstract:INTRODUCTION:Recent studies have implicated repolarization lability in the genesis of malignant ventricular arrhythmias. However, few data exist on assessment of temporal QT interval variability and its relation to arrhythmogenesis. We tested the ability of the QT variability index (QTVI), a measure of beat-to-beat QT ...
journal_title:Journal of cardiovascular electrophysiology
pub_type: 杂志文章
doi:10.1111/j.1540-8167.1998.tb00130.x
更新日期:1998-09-01 00:00:00
abstract:INTRODUCTION:Disturbance of sympathetic and vagal nervous system participates in the pathogenesis of hypertension and atrial fibrillation (AF). Renal denervation (RDN) can modulate autonomic nervous activity and reduce blood pressure (BP) in hypertensive patients. We aimed to evaluate the effect of RDN combined with pu...
journal_title:Journal of cardiovascular electrophysiology
pub_type: 杂志文章,meta分析
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更新日期:2019-05-01 00:00:00
abstract::Atrial flutter involving either clockwise or counterclockwise rotation around the tricuspid annulus utilizing the subeustachian isthmus has been well described. However, macroreentrant atrial circuits in atypical atrial flutter in patients who have not undergone previous surgery or without atrial disease are not well ...
journal_title:Journal of cardiovascular electrophysiology
pub_type: 杂志文章
doi:10.1111/j.1540-8167.1998.tb00886.x
更新日期:1998-10-01 00:00:00
abstract:INTRODUCTION:Patients with nonischemic cardiomyopathy (NICM) and ventricular tachycardia (VT) usually have basal-lateral scar in the left ventricle (LV). We sought to determine electrocardiogram (ECG) characteristics that may help identify NICM patients with basal-lateral scar and VT. METHODS AND RESULTS:Phase I, stud...
journal_title:Journal of cardiovascular electrophysiology
pub_type: 杂志文章
doi:10.1111/j.1540-8167.2011.02129.x
更新日期:2011-12-01 00:00:00
abstract:INTRODUCTION:Idiopathic ventricular tachycardia (VT) originating from the left ventricular outflow tract (LVOT) is rare. Previously reported were two cases of LVOT tachycardia which were treated with radiofrequency (RF) catheter ablation through endocardial aortomitral continuity. We report here a case of a repetitive ...
journal_title:Journal of cardiovascular electrophysiology
pub_type: 杂志文章
doi:10.1111/j.1540-8167.1999.tb01271.x
更新日期:1999-07-01 00:00:00
abstract:INTRODUCTION:Electrophysiological mapping (EPM) in coronary sinus (CS) branches is feasible for guiding LV lead placement to the optimal, latest activated site at cardiac resynchronization therapy (CRT) procedures. However, whether this procedure optimizes the response to CRT has not been demonstrated. This study was t...
journal_title:Journal of cardiovascular electrophysiology
pub_type: 杂志文章
doi:10.1111/jce.12771
更新日期:2015-12-01 00:00:00
abstract:BACKGROUND:The pathologic process of ARVC (arrhythmogenic right ventricular cardiomyopathy) typically originates in the epicardium or subepicardial layers with progression toward endocardium. However, in the most recent ARVC international task force consensus statement, epicardial ventricular tachycardia (VT) ablation ...
journal_title:Journal of cardiovascular electrophysiology
pub_type: 杂志文章
doi:10.1111/jce.14593
更新日期:2020-08-01 00:00:00
abstract:INTRODUCTION:The incidence of spontaneous transition of 2:1 AV block to 1:1 AV conduction during AV nodal reentrant tachycardia has not been well reported. Among previous studies, controversy also existed about the site of the 2:1 AV block during AV nodal reentrant tachycardia. METHODS AND RESULTS:In patients with 2:1...
journal_title:Journal of cardiovascular electrophysiology
pub_type: 临床试验,杂志文章
doi:10.1046/j.1540-8167.2003.03198.x
更新日期:2003-12-01 00:00:00
abstract:INTRODUCTION:Patients with cardiac arrhythmias are generally instructed to avoid caffeine intake. A comprehensive evaluation of the electrophysiological effects of caffeine on atrial and ventricular tissues in humans has not previously been performed. METHODS AND RESULTS:Eighty patients (31 men, mean age 49 ± 14 years...
journal_title:Journal of cardiovascular electrophysiology
pub_type: 杂志文章,随机对照试验
doi:10.1111/jce.12504
更新日期:2015-01-01 00:00:00
abstract:INTRODUCTION:Idiopathic ventricular tachycardia (VT) originating in or close to the anterior fascicle of the left bundle is rare. A patient with no structural heart disease and VT with a right bundle branch block configuration and right-axis deviation underwent an electrophysiologic examination. METHODS AND RESULTS:Bo...
journal_title:Journal of cardiovascular electrophysiology
pub_type: 杂志文章
doi:10.1111/j.1540-8167.1996.tb00500.x
更新日期:1996-12-01 00:00:00
abstract:INTRODUCTION:Following myocardial infarction (MI), left ventricular function is determined by cardiac remodeling occurring in both infarcted and noninfarcted myocardium (NIM). Unipolar voltage mapping may detect remodeling changes in NIM that are associated with the left ventricular ejection fraction (LVEF). We aimed t...
journal_title:Journal of cardiovascular electrophysiology
pub_type: 杂志文章
doi:10.1111/jce.12315
更新日期:2014-03-01 00:00:00
abstract:INTRODUCTION:Echocardiography is widely used to optimize CRT programming, but it is time-consuming. This study aimed to correlate the optimal interventricular pacing (V-V) interval obtained by echo with the optimal V-V interval obtained by a simpler method based on the surface ECG. METHODS AND RESULTS:Three V-V interv...
journal_title:Journal of cardiovascular electrophysiology
pub_type: 临床试验,杂志文章
doi:10.1111/j.1540-8167.2007.00983.x
更新日期:2007-12-01 00:00:00
abstract:INTRODUCTION:The objective of this study was to record the ECG of the smallest living mammal to extend the domain of data for comparative AV nodal electrophysiologic purposes. These data are needed to establish the relationship between the PR interval and heart size in mammalian species of all sizes. METHODS AND RESUL...
journal_title:Journal of cardiovascular electrophysiology
pub_type: 杂志文章
doi:10.1111/j.1540-8167.1999.tb00658.x
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journal_title:Journal of cardiovascular electrophysiology
pub_type: 临床试验,杂志文章
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journal_title:Journal of cardiovascular electrophysiology
pub_type: 杂志文章
doi:10.1111/j.1540-8167.1994.tb01123.x
更新日期:1994-10-01 00:00:00
abstract:INTRODUCTION:Recently, a medical advisory was issued regarding the Riata and Riata ST silicone endocardial defibrillator leads (St. Jude Medical, Sylmar, CA, USA) addressing the issue of conductor cables extruding in an "inside-out" fashion from the main body of the lead. However, little data exist to guide our managem...
journal_title:Journal of cardiovascular electrophysiology
pub_type: 杂志文章
doi:10.1111/j.1540-8167.2012.02378.x
更新日期:2012-11-01 00:00:00
abstract:BACKGROUND:Low conduction velocity (CV) in the area showing low electrogram amplitude (EA) is characteristic of reentry circuit of atypical atrial flutter (AFL). The quantitative relationship between CV and EA remains unclear. We characterized AFL reentry circuit in the right atrium (RA), focusing on the relationship b...
journal_title:Journal of cardiovascular electrophysiology
pub_type: 杂志文章
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更新日期:2014-04-01 00:00:00
abstract::The use of multiple His bundle-right bundle branch recordings in electrophysiologic studies has facilitated definition of the mechanism and elucidation of the direction of impulse propagation in bundle branch reentrant tachycardia, "Mahaim" fiber reciprocating tachycardia, and retrograde His depolarization in fascicul...
journal_title:Journal of cardiovascular electrophysiology
pub_type: 杂志文章
doi:10.1111/j.1540-8167.1994.tb01172.x
更新日期:1994-04-01 00:00:00
abstract:INTRODUCTION:Hyperventilation has been demonstrated to alter autonomic function. Sympathomimetic drugs (isoproterenol) and parasympatholytic drugs (atropine) may be needed to facilitate induction of supraventricular tachycardia (SVT). The aim of this study was to test the clinical utility and mechanisms of hyperventila...
journal_title:Journal of cardiovascular electrophysiology
pub_type: 杂志文章
doi:10.1046/j.1540-8167.2001.01242.x
更新日期:2001-11-01 00:00:00
abstract:INTRODUCTION:ATP-sensitive K+ channels (K(ATP)) are expressed abundantly in cardiovascular tissues. Blocking this channel in experimental models of ischemia can reduce arrhythmias. We investigated the acute effects of amiodarone on the activity of cardiac sarcolemmal K(ATP) channels and their sensitivity to ATP. METHO...
journal_title:Journal of cardiovascular electrophysiology
pub_type: 杂志文章
doi:10.1111/j.1540-8167.2000.tb01762.x
更新日期:2000-10-01 00:00:00
abstract::We report on the entrapment of an ablation catheter by chordae tendineae in the mitral valve during radiofrequency (RF) ablation of ventricular tachycardia. The entrapped tip had to be removed via open surgery. Great care must be taken when performing radiofrequency ablation around the mitral valve apparatus. ...
journal_title:Journal of cardiovascular electrophysiology
pub_type: 杂志文章
doi:10.1111/j.1540-8167.2011.02206.x
更新日期:2012-02-01 00:00:00
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journal_title:Journal of cardiovascular electrophysiology
pub_type: 临床试验,杂志文章
doi:10.1111/j.1540-8167.1998.tb00910.x
更新日期:1998-03-01 00:00:00
abstract:UNLABELLED:Early Repolarization in Noncompaction Cardiomyopathy. BACKGROUND:Early repolarization (ER) is associated with malignant ventricular arrhythmias, including ventricular fibrillation (VF) and sudden cardiac death (SCD). One possible mechanism is increased trabeculation with deep intramyocardial invagination, ...
journal_title:Journal of cardiovascular electrophysiology
pub_type: 杂志文章
doi:10.1111/j.1540-8167.2012.02325.x
更新日期:2012-09-01 00:00:00
abstract:INTRODUCTION:Evaluation of conduction over a linear ablation lesion at the anterior mitral annulus can be time-consuming and difficult during ongoing radiofrequency application. The purpose of this study was to validate conduction time from the beginning of the p wave and from the coronary sinus ostium to the left atri...
journal_title:Journal of cardiovascular electrophysiology
pub_type: 杂志文章
doi:10.1111/jce.12670
更新日期:2015-07-01 00:00:00