Arrhythmia recurrence after atrial fibrillation ablation: can magnetic resonance imaging identify gaps in atrial ablation lines?

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

authors： Atiga WL,Calkins H,Lawrence JH,Tomaselli GF,Smith JM,Berger RD

更新日期：1998-09-01 00:00:00

abstract：:Calcium/calmodulin-dependent kinase II (CaMKII) is a multifunctional serine/threonine kinase widely distributed in a number of tissue types. Activation of CaMKII has been linked to important downstream physiological processes, including apoptosis, hypertrophy, and arrhythmia in the heart. Pharmacological or genetic in...

journal_title：Journal of cardiovascular electrophysiology

authors： Erickson JR,Anderson ME

更新日期：2008-12-01 00:00:00

abstract：:A novel application of the Biosense CARTO System anatomic electromagnetic voltage mapping is presented, utilized as a guide for permanent pacemaker placement. The technique is illustrated in the successful implantation of an atrial lead in a patient with Ebstein's anomaly characterized by a severely dilated right atri...

journal_title：Journal of cardiovascular electrophysiology

authors： Kloosterman EM,Yamamura K,Alba J,Mitrani RD,Myerburg RJ,Interian A Jr

更新日期：2000-01-01 00:00:00

abstract：INTRODUCTION:Little is known about the incidence and timing of reactive pericardial collections developing after left atrial catheter ablation (LACA), and when and if transthoracic echocardiography (TTE) should be performed routinely in these patients postprocedure. METHODS AND RESULTS:Two hundred consecutive LACA pat...

journal_title：Journal of cardiovascular electrophysiology

authors： Kalla M,Rajappan K,Kalra S,Thomas G,Redpath C,Earley MJ,Sporton SC,Schilling RJ

更新日期：2011-07-01 00:00:00

abstract：INTRODUCTION:Radiofrequency ablation of some right-sided accessory pathways continues to be challenging. The purpose of this study was to evaluate the efficacy of introducing a multielectrode microcatheter in the right coronary artery to localize accessory pathways when conventional mapping was unsuccessful. METHODS A...

journal_title：Journal of cardiovascular electrophysiology

authors： Shah MJ,Jones TK,Cecchin F

更新日期：2004-11-01 00:00:00

abstract：INTRODUCTION:Despite the great success in treating AV nodal reentrant tachycardia (AVNRT) with radiofrequency modification of the AV node, the dimensions of the electrophysiologic circuit of this arrhythmia remain unclear, and simple models fail to explain all tachycardia-related phenomena. METHODS AND RESULTS:We desc...

journal_title：Journal of cardiovascular electrophysiology

authors： Dizon J,Reiffel J,Kassotis J,Woollett I,Garan H

更新日期：2003-05-01 00:00:00

abstract：INTRODUCTION:Data on long-term follow-up (LTFU) after interventional closure of the left atrial appendage (LAAC) in patients with nonvalvular atrial fibrillation (AF) are scarce. We sought to determine the outcome of patients after LAAC with the first generation device. METHODS AND RESULTS:The Cardioangiologisches Cen...

journal_title：Journal of cardiovascular electrophysiology

authors： Schmidt B,Bordignon S,Fuernkranz A,Perrotta L,Scherer D,Chun KRJ

更新日期：2015-08-01 00:00:00

abstract：INTRODUCTION:Quinidine has been evaluated in patients with a short QT-1 syndrome caused by an IKr gain-of-function mutation of HERG. Recently, in vitro data with disopyramide showed an even stronger effect on the N588K mutant current. The aim of the present study was to test the in vivo effects of disopyramide in patie...

journal_title：Journal of cardiovascular electrophysiology

authors： Schimpf R,Veltmann C,Giustetto C,Gaita F,Borggrefe M,Wolpert C

更新日期：2007-11-01 00:00:00

abstract：INTRODUCTION:The mechanisms that maintain ventricular fibrillation (VF) are not completely understood. It has been proposed that increased ventricular wall thickness destabilizes VF wavefronts and therefore is an important determinant of VF activation patterns. We hypothesized that if this is the case, then VF patterns...

journal_title：Journal of cardiovascular electrophysiology

authors： Rogers JM,Huang J,Pedoto RW,Walker RG,Smith WM,Ideker RE

更新日期：2000-12-01 00:00:00

abstract：INTRODUCTION:To assess a potential relationship between sex and outcome in recipients of an implantable cardioverter-defibrillator (ICD). METHODS AND RESULTS:All 1471 ICD recipients between 2000 and 2015 were sex-related analyzed with the following outcome parameters: overall survival (OS), the occurrence of inappropr...

journal_title：Journal of cardiovascular electrophysiology

authors： Burger AL,Schmidinger H,Ristl R,Pezawas T

更新日期：2019-09-01 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

authors： Chen S,Kiuchi MG,Yin Y,Liu S,Schratter A,Acou WJ,Meyer C,Pürerfellner H,Chun KRJ,Schmidt B

更新日期：2019-05-01 00:00:00

abstract：BACKGROUND:The value of signal-averaged ECG (SAECG) in the risk stratification of Chagas disease (ChD), a potentially lethal illness prevalent in Latin America, remains controversial. The aim of this prospective longitudinal study was to determine the prognostic value of SAECG in ChD, using multivariate models with oth...

journal_title：Journal of cardiovascular electrophysiology

authors： Ribeiro AL,Cavalvanti PS,Lombardi F,Nunes Mdo C,Barros MV,Rocha MO

更新日期：2008-05-01 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

authors： Liang JJ,Elafros MA,Muser D,Pathak RK,Santangeli P,Supple GE,Schaller RD,Frankel DS,Dixit S

更新日期：2017-03-01 00:00:00

abstract：:We report a case in which endocardial radiofrequency (RF) ablation guided by unipolar intracoronary mapping using a guidewire was an effective therapy for treating VT originating from an epicardial site of the left ventricle. A 55-year-old man with dilated cardiomyopathy was referred for treatment of refractory sustai...

journal_title：Journal of cardiovascular electrophysiology

authors： Kumagai K,Takahashi A,Yamauchi Y,Aonuma K

更新日期：2006-06-01 00:00:00

abstract：:The cavotricuspid isthmus (CVTI) is the well-established location of atrial tissue critical for the maintenance of typical atrial flutter. The CVTI begins at the electrically inert tricuspid valve and includes the atrial myocardium up to the inferior vena cava (IVC). In this article, we discuss relevant CVTI and right...

journal_title：Journal of cardiovascular electrophysiology

authors： Asirvatham SJ

更新日期：2009-01-01 00:00:00

abstract：:A case of iterative atrial tachycardia leading to dilated cardiomyopathy is reported. During electrophysiologic study, the tachycardia showed a markedly irregular cycle length associated with changes in atrial activation breakthrough as demonstrated by coronary sinus (CS) recordings and frequently degenerated into sel...

journal_title：Journal of cardiovascular electrophysiology

authors： Tritto M,Zardini M,De Ponti R,Salerno-Uriarte JA

更新日期：2001-10-01 00:00:00

abstract：:Atrial fibrillation is the most common sustained tachyarrhythmia and, as such, has become the recent focus of intense clinical and experimental interest. Because of its associated morbidity and mortality, there is a multidisciplinary effort to understand the pathophysiology that may ultimately lead to improved therape...

journal_title：Journal of cardiovascular electrophysiology

authors： Zipes DP

更新日期：1997-08-01 00:00:00

abstract：OBJECTIVE:Even though diffuse T wave inversion and prolongation of the QT interval in the surface electrocardiogram (ECG) have been consistently reported in patients with transient stress-induced left ventricular apical ballooning (AB), ventricular repolarization has not yet been systematically investigated in this cli...

journal_title：Journal of cardiovascular electrophysiology

authors： Bonnemeier H,Ortak J,Bode F,Kurowski V,Reppel M,Weitz G,Barantke M,Schunkert H,Wiegand UK

更新日期：2006-12-01 00:00:00

abstract：BACKGROUND:The optimal recording technique of the electrogram voltage for detecting abnormal atrial tissue remains unclear. The aim of this study was to compare the impact of various recording techniques on the electrogram voltage after the delivery of ablation therapy in the human right atrium (RA). MATERIAL AND METH...

journal_title：Journal of cardiovascular electrophysiology

authors： Lin YJ,Tai CT,Lo LW,Udyavar AR,Chang SL,Wongcharoen W,Tuan TC,Hu YF,Chiang SJ,Chen YJ,Chen SA

更新日期：2007-06-01 00:00:00

abstract：BACKGROUND:Residual gaps due to incomplete ablation lines are known to be the most common cause of recurrent atrial fibrillation (AF) after catheter ablation. We hypothesized that any residual potentials at the junction of the left atrium and pulmonary vein (PV), inside the circumferential PV ablation (CPVA) lines, wou...

journal_title：Journal of cardiovascular electrophysiology

authors： Kim YH,Lim HE,Pak HN,Kwak JJ,Park JS,Choi JI,Park SW,Kim YH

更新日期：2010-09-01 00:00:00

abstract：INTRODUCTION:Sinus node dysfunction (SND) commonly manifests with atrial arrhythmias alternating with sinus pauses and sinus bradycardia. The underlying process is thought to be because of atrial fibrosis. We assessed the value of atrial fibrosis, quantified using late gadolinium enhanced-MRI (LGE-MRI), in predicting s...

journal_title：Journal of cardiovascular electrophysiology

authors： Akoum N,McGann C,Vergara G,Badger T,Ranjan R,Mahnkopf C,Kholmovski E,Macleod R,Marrouche N

更新日期：2012-01-01 00:00:00

abstract：RATIONALE:To evaluate the efficacy of radiofrequency ventricular tachycardia (VT) ablation targeting complete late potential (LP) activity. METHODS AND RESULTS:Sixty-four consecutive patients (pts) with recurrent VTs and coronary artery disease or idiopathic dilated cardiomyopathy were evaluated. Fifty patients (47 ma...

journal_title：Journal of cardiovascular electrophysiology

authors： Vergara P,Trevisi N,Ricco A,Petracca F,Baratto F,Cireddu M,Bisceglia C,Maccabelli G,Della Bella P

更新日期：2012-06-01 00:00:00

abstract：INTRODUCTION:Recent defibrillation studies show that electric fields interact with reentrant activity in myocardial tissue through virtual electrode polarization (VEP). This study focuses on determining how VEP relates to the creation and survival of postshock phase singularities in cardiac tissue and demonstrating tha...

journal_title：Journal of cardiovascular electrophysiology

authors： Eason J,Trayanova N

更新日期：2002-07-01 00:00:00

abstract：INTRODUCTION:In patients with sinus node disease (SND), the dual-chamber pacemaker (PM) is programmed in DDDR mode with an algorithm to avoid unnecessary right ventricular (RV) pacing. This pacing mode may prolong PR interval with consequently atrioventricular (AV) asynchrony which is associated with a higher risk of a...

journal_title：Journal of cardiovascular electrophysiology

authors： Pastore G,Marcantoni L,Lanza D,Maines M,Noventa F,Corbucci G,Rigatelli G,Baracca E,Roncon L,Zanon F

更新日期：2020-11-11 00:00:00

abstract：INTRODUCTION:For radiofrequency (RF) ablation, the EP Shuttle® (Stockert GmbH, Freiburg, Germany), Ampere® (St. Jude Medical, St. Paul, MN, USA), and SmartAblate® (Biosense Webster, Diamond Bar, CA, USA) generator models are most frequently used in clinical practice. The aim of this study was to assess the correlation ...

journal_title：Journal of cardiovascular electrophysiology

authors： Bourier F,Schwarz B,Brkic A,Wolff L,Semmler V,Kottmaier M,Risse E,Telishevska M,Brooks S,Lengauer S,Kornmayer M,Koch-Büttner K,Berger F,Hessling G,Deisenhofer I,Reents T

更新日期：2018-02-01 00:00:00

abstract：:Although the annual incidence of sudden cardiac death (SCD) is dropping in the United States, therapies for the patient who has survived a SCD episode or is at high risk of developing SCD in the future are now well established. The implantable cardioverter defibrillator (ICD) has emerged from a series of well done ran...

journal_title：Journal of cardiovascular electrophysiology

authors： Cannom DS

更新日期：2005-09-01 00:00:00

abstract：OBJECTIVES:We tested proposed algorithms for idiopathic and nonischemic tachycardias for their ability to identify epicardial LV-VT origins. BACKGROUND:Several ECG features have been reported to identify epicardial origins for left ventricular tachycardias (LV-VTs) in the absence of myocardial infarction. Only limited...

journal_title：Journal of cardiovascular electrophysiology

authors： Martinek M,Stevenson WG,Inada K,Tokuda M,Tedrow UB

更新日期：2012-02-01 00:00:00

abstract：INTRODUCTION:We investigated the spread of the excitation wave over the atria following initiation in a given focus in an atrial model containing its overall geometry only, i.e., without atrial bundles. METHODS AND RESULTS:The propagation velocity of the excitation wave was taken to be uniform, and the wall thickness ...

journal_title：Journal of cardiovascular electrophysiology

authors： van Dam PM,van Oosterom A

更新日期：2003-10-01 00:00:00

abstract：INTRODUCTION:Sudden cardiac death is a substantial cause of mortality in patients with cardiomyopathy, but evidence supporting implantable cardioverter-defibrillator (ICD) implantation is less robust in nonischemic cardiomyopathy (NICM) than in ischemic cardiomyopathy. Improved risk stratification is needed. We assesse...

journal_title：Journal of cardiovascular electrophysiology

authors： Middour TG,Rosenthal TM,Abi-Samra FM,Bernard ML,Khatib S,Polin GM,Rogers PA,Bober RM,Morin DP

更新日期：2020-05-01 00:00:00

abstract：INTRODUCTION:Oral anticoagulation (OAC) based on estimated stroke risk is recommended following catheter ablation (CA) of atrial fibrillation (AF), regardless of the extent of arrhythmia control. However, discontinuing OAC in selected patients may be safe. We sought to evaluate a strategy of OAC discontinuation followi...

journal_title：Journal of cardiovascular electrophysiology

authors： Pothineni NVK,Amankwah N,Santangeli P,Schaller RD,Supple GE,Deo R,Nazarian S,Garcia FC,Dixit S,Callans DJ,Marchlinski FE,Frankel DS

更新日期：2020-12-31 00:00:00