Bipolar stimulation of cardiac tissue using an anisotropic bidomain model.

abstract：:A patient with congenital complete heart block underwent implantation of a dual-chamber pacemaker. He presented to the emergency room with fatigue and was found to be in atrial flutter. Device interrogation revealed undersensing of 5 mV flutter waves at a programmed sensitivity of 0.5 mV. Due to undersensing, mode swi...

journal_title：Journal of cardiovascular electrophysiology

authors： Kalahasty G,Kenigsberg DN,Wood MA,Ellenbogen KA

更新日期：2006-11-01 00:00:00

abstract：INTRODUCTION:Cerebral thromboembolic event (CTE) is a possible complication of pulmonary vein antrum isolation (PVAI). The objective of this study was to report long-term functional and neurocognitive recovery in patients who had a CTE during or within 48 hours of catheter ablation. METHODS AND RESULTS:We screened 3,0...

journal_title：Journal of cardiovascular electrophysiology

authors： Patel D,Bailey SM,Furlan AJ,Ching M,Zachaib J,Di Biase L,Mohanty P,Horton RP,Burkhardt JD,Sanchez JE,Zagrodzky JD,Gallinghouse GJ,Schweikert R,Saliba W,Natale A

更新日期：2010-04-01 00:00:00

abstract：INTRODUCTION:Decreased heart rate variability (HRV) and abnormal nonlinear HRV shortly after myocardial infarction (MI) are risk factors for mortality. Traditional HRV predicts mortality in patients with a range of times post-MI, but the association of nonlinear HRV and outcome in this population is unknown. METHODS A...

journal_title：Journal of cardiovascular electrophysiology

authors： Stein PK,Domitrovich PP,Huikuri HV,Kleiger RE,Cast Investigators.

更新日期：2005-01-01 00:00:00

abstract：INTRODUCTION:Rapid PV activity is critical in initiating and maintaining AF. The underlying substrate responsible for this remains uncertain. We sought to identify if patients with paroxysmal (PAF) and persistent atrial fibrillation (PeAF) have an abnormal substrate within the pulmonary veins (PVs). METHODS AND RESULT...

journal_title：Journal of cardiovascular electrophysiology

authors： Teh AW,Kistler PM,Lee G,Medi C,Heck PM,Spence S,Morton JB,Sanders P,Kalman JM

更新日期：2011-10-01 00:00:00

abstract：INTRODUCTION:In vitro studies and ambulatory ECG recordings from the MERLIN TIMI-36 clinical trial suggest that the novel antianginal agent ranolazine may have the potential to suppress atrial arrhythmias. However, there are no reports of effects of ranolazine on atrial electrophysiologic properties in large intact ani...

journal_title：Journal of cardiovascular electrophysiology

authors： Kumar K,Nearing BD,Carvas M,Nascimento BC,Acar M,Belardinelli L,Verrier RL

更新日期：2009-07-01 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：:The heart's pacemaker, the sinoatrial node, does not consist of a group of uniform sinoatrial node cells embedded in atrial muscle. Instead, it is a heterogeneous tissue with multiple cell types and a complex structure. Evidence suggests that from the periphery to the center of the sinoatrial node, there is a gradient...

journal_title：Journal of cardiovascular electrophysiology

authors： Boyett MR,Dobrzynski H,Lancaster MK,Jones SA,Honjo H,Kodama I

更新日期：2003-01-01 00:00:00

abstract：INTRODUCTION:Atrial arrhythmias, including atrial flutter, are common in orthotopic heart transplant recipients. However, only a small number of individual case reports describe the electrical circuit and catheter ablation of atrial flutter after heart transplantation. METHODS AND RESULTS:Detailed electrophysiologic e...

journal_title：Journal of cardiovascular electrophysiology

authors： Heist EK,Doshi SK,Singh JP,Di Salvo T,Semigran MJ,Reddy VY,Keane D,Ruskin JN,Mansour M

更新日期：2004-12-01 00:00:00

abstract：INTRODUCTION:The difficult catheter orientation and navigation associated with conventional technology and mono-/multiplane fluoroscopy may complicate ablation procedures of atrial tachycardias. A new three-dimensional catheter technology for electroanatomical mapping of the right atrium and ablation of ectopic atrial ...

journal_title：Journal of cardiovascular electrophysiology

authors： Kottkamp H,Hindricks G,Breithardt G,Borggrefe M

更新日期：1997-12-01 00:00:00

abstract：:We report a case of initial transient success during ablation for typical AV nodal reentrant tachycardia utilizing traditional right-sided approaches, followed by recurrence of the same tachycardia and an ultimately successful ablation on the posteromedial mitral annulus. ...

journal_title：Journal of cardiovascular electrophysiology

authors： Altemose GT,Scott LR,Miller JM

更新日期：2000-11-01 00:00:00

abstract：INTRODUCTION:The optimal left ventricular (LV) pacing site for cardiac resynchronization therapy (CRT) is unclear. The current study aims to explore the clinical significance of LV lead concordance to delayed contraction segment in CRT. METHODS AND RESULTS:Concordant LV lead position was defined as the lead tip locate...

journal_title：Journal of cardiovascular electrophysiology

authors： Fung JW,Lam YY,Zhang Q,Yip GW,Chan WW,Chan GC,Chan JY,Yu CM

更新日期：2009-05-01 00:00:00

abstract：BACKGROUND:Catheter ablation is an effective treatment for symptomatic individuals with atrial fibrillation (AF) but is associated with a risk of periprocedual stroke. Recent data suggest that this risk may be abolished if catheter ablation is performed with uninterrupted warfarin (UW). We sought to compare the inciden...

journal_title：Journal of cardiovascular electrophysiology

authors： Page SP,Herring N,Hunter RJ,Withycombe E,Lovell M,Wali G,Betts TR,Bashir Y,Dhinoja M,Earley MJ,Sporton SC,Rajappan K,Schilling RJ

更新日期：2014-06-01 00:00:00

abstract：:Dual chamber pacemakers have inbuilt advanced safety systems such as ventricular safety standby (crosstalk detection) to prevent ventricular oversensing resulting in inappropriate pacing inhibition. We describe a case where this safety mechanism does not reliably work and the management required to rectify the situati...

journal_title：Journal of cardiovascular electrophysiology

authors： Haldar SK,Steed B,Watkins S,Nair K

更新日期：2017-05-01 00:00:00

abstract：:The incidence of atrial fibrillation (AF) in Brugada syndrome (BrS) has been reported at between 9% and 53% by different series, but the true prevalence is unknown. However, AF may be the presenting feature in some patients. The underlying mechanisms for AF may be a combination of multiple factors, genetic or acquired...

journal_title：Journal of cardiovascular electrophysiology

authors： Vlachos K,Mascia G,Martin CA,Bazoukis G,Frontera A,Cheniti G,Letsas KP,Efremidis M,Georgopoulos S,Gkalapis C,Duchateau J,Parmbrun T,Derval N,Hocini M,Haissaguerre M,Jais P,Sacher F

更新日期：2020-04-01 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:Isolation of the left atrial appendage (LAA) is often performed in persistent atrial fibrillation (AF). Propagation patterns in the LAA during AF remain to be elucidated. We sought to characterize propagation patterns in the LAA during AF in persistent AF. METHODS:Persistent AF patients undergoing cathete...

journal_title：Journal of cardiovascular electrophysiology

authors： Takahashi Y,Akiyoshi K,Sekigawa M,Yagishita A,Yamamoto T,Maeda S,Kawabata M,Goya M,Hirao K,Sasano T

更新日期：2020-01-01 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

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

更新日期：1998-09-01 00:00:00

abstract：INTRODUCTION:Several studies have shown that the fast pathway is more responsive to adenosine than the slow pathway in patients with AV nodal reentrant tachycardia. Little information is available regarding the effect of adenosine on anterograde and retrograde fast pathway conduction. METHODS AND RESULTS:The effects o...

journal_title：Journal of cardiovascular electrophysiology

authors： Souza JJ,Zivin A,Flemming M,Pelosi F,Oral H,Knight BP,Goyal R,Man KC,Strickberger SA,Morady F

更新日期：1998-08-01 00:00:00

abstract：BACKGROUND:Symptom recurrence following sinus node modification (SNM) for inappropriate sinus tachycardia (IST) remains significant despite achieving acute procedural success. The impact of non-IST tachyarrhythmias on symptom recurrence remains poorly characterized. OBJECTIVES:The objective was to determine the preval...

journal_title：Journal of cardiovascular electrophysiology

authors： Frankel DS,Lin D,Anastasio N,Mountantonakis SE,Dixit S,Gerstenfeld EP,Hutchinson MD,Riley MP,Marchlinski FE,Callans DJ

更新日期：2012-08-01 00:00:00

abstract：INTRODUCTION:Cryoballoon ablation (CBA) and radiofrequency ablation (RFA) are the preferred modalities for catheter ablation of atrial fibrillation (AF). Technological advances have improved procedural outcomes, warranting an updated comparison. We sought to evaluate the efficacy and safety of CBA-2nd generation (CBA-2...

journal_title：Journal of cardiovascular electrophysiology

authors： Ravi V,Poudyal A,Pulipati P,Larsen T,Krishnan K,Trohman RG,Sharma PS,Huang HD

更新日期：2020-10-01 00:00:00

abstract：:This is a case of atrial tachycardia 2 years after pulmonary transplantation. After excluding right atrial involvement, tachycardia origin was located in a scar region medial to the anastomosis of the left inferior pulmonary donor vein. Tachycardia mechanism was microreentry. Noninvasive electrocardiographic mapping p...

journal_title：Journal of cardiovascular electrophysiology

authors： Roten L,Pedersen M,Pascale P,Shah A,Eliautou S,Scherr D,Sacher F,Haïssaguerre M

更新日期：2012-05-01 00:00:00

abstract：INTRODUCTION:Defibrillation testing of the implantable cardioverter-defibrillator (ICD) is considered a standard and required practice at the time of implantation. How much testing, if any in some cases, should be performed, however, remains unknown. METHODS AND RESULTS:Included in this retrospective analysis were 835...

journal_title：Journal of cardiovascular electrophysiology

authors： Pires LA,Johnson KM

更新日期：2006-02-01 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

authors： van der Tweel LH,Strackee J,Stokhof AA,Wassenaar C,Meijler FL

更新日期：1999-02-01 00:00:00

abstract：INTRODUCTION:Ventricular arrhythmias are a common feature in patients with mitral valve prolapse. In an attempt to determine the origin and underlying electrophysiologic mechanism, we describe a patient with ventricular fibrillation, exercise-induced ventricular tachycardia (VT), and, at the time of diagnosis, prolapse...

journal_title：Journal of cardiovascular electrophysiology

authors： Wilde AA,Düren DR,Hauer RN,deBakker JM,Bakker PF,Becker AE,Janse MJ

更新日期：1997-03-01 00:00:00

abstract：INTRODUCTION:The advent of signal-averaged ECG (SAECG) systems for P wave analysis has made it important to determine if the use of different filtering techniques in these systems is diagnostically equivalent. METHODS AND RESULTS:Three different high-pass filtering techniques and two cutoff frequency values were used:...

journal_title：Journal of cardiovascular electrophysiology

authors： Valverde ER,Quinteiro RA,Bertran GC,Arini PD,Glenny P,Biagetti MO

更新日期：1998-03-01 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

authors： Riley RD,Pritchett EL

更新日期：1997-07-01 00:00:00

abstract：:Despite many years of research, the mechanisms of atrial fibrillation (AF) are still poorly understood, and we currently are unable to adequately treat most patients with AF. Recently, the demonstration in both human and animal studies that the pulmonary veins (PVs) and the posterior left atrial (LA) wall play a subst...

journal_title：Journal of cardiovascular electrophysiology

authors： Jalife J

更新日期：2003-07-01 00:00:00

abstract：INTRODUCTION:Regional dispersions of repolarization (DOR) are arrhythmogenic perturbations that are closely associated with reentry. However, the characteristics of DOR have not been well defined or adequately analyzed because previous algorithms did not take into account spatial heterogeneities of action potential dur...

journal_title：Journal of cardiovascular electrophysiology

authors： Salama G,Kanai AJ,Huang D,Efimov IR,Girouard SD,Rosenbaum DS

更新日期：1998-02-01 00:00:00

abstract：INTRODUCTION:The objective of this study was to determine whether the effect of isoproterenol (Iso) to increase L-type Ca2+ current [I(Ca(L))] and action potential duration (APD) was potentiated in ventricular myocytes following termination of an exposure of these cells to acetylcholine (ACh), and whether this potentia...

journal_title：Journal of cardiovascular electrophysiology

authors： Song Y,Shryock JC,Belardinelli L

更新日期：1998-07-01 00:00:00

abstract：INTRODUCTION:Atrial fibrillation (AF) in the left atrium (LA) is poorly defined in terms of regional differences in the degree of organization, characteristics of paroxysmal and persistent variants, and electrophysiologic events that develop at the onset of episodes. METHODS AND RESULTS:The study population consisted ...

journal_title：Journal of cardiovascular electrophysiology

authors： Ndrepepa G,Karch MR,Schneider MA,Weyerbrock S,Schreieck J,Deisenhofer I,Zrenner B,Schömig A,Schmitt C

更新日期：2002-06-01 00:00:00