Thoracotomy elevates the defibrillation threshold and modifies the defibrillation dose-response curve.

abstract：INTRODUCTION:Cardiac resynchronization therapy (CRT) recipients with ischemic cardiomyopathy (ICM) have scar segments that may limit ventricular resynchronization and clinical response. The impact of myocardial viability at the left ventricular (LV) pacing site on CRT response is poorly elucidated. METHODS AND RESULTS...

journal_title：Journal of cardiovascular electrophysiology

authors： Bose A,Kandala J,Upadhyay GA,Riedl L,Ahmado I,Padmanabhan R,Gewirtz H,Mulligan LJ,Singh JP

更新日期：2014-05-01 00:00:00

abstract：BACKGROUND:Cardiac implantable electronic device pocket infections require complete system removal. However, postoperative bleeding and hematoma can occur after extensive debridement and an optimal management strategy has yet to be defined. METHODS:Following system removal and debridement, all pockets were treated wit...

journal_title：Journal of cardiovascular electrophysiology

authors： Schaller RD,Santangeli P,Tomczuk L,Frankel DS

更新日期：2019-09-01 00:00:00

abstract：BACKGROUND:Hemodynamic instability hinders activation and entrainment mapping during ventricular tachycardia ablation. The Impella 2.5 microaxial flow device (MFD; Abiomed Inc., Danvers, MA, USA) is used to prevent hemodynamic instability during electrophysiologic study. However, electromagnetic interference (EMI) gene...

journal_title：Journal of cardiovascular electrophysiology

authors： Vaidya VR,Desimone CV,Madhavan M,Noheria A,Shahid M,Walters J,Ladewig DJ,Mikell SB,Johnson SB,Suddendorf SH,Asirvatham SJ

更新日期：2014-07-01 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:Cerebral embolism and stroke are feared complications of left atrial catheter ablation such as pulmonary vein (PV) ablation. In order to assess the thrombogenicity of left atrial catheter ablation, knowledge of both clinically evident as well as silent cerebral embolism is important. The aim of the current...

journal_title：Journal of cardiovascular electrophysiology

authors： Lickfett L,Hackenbroch M,Lewalter T,Selbach S,Schwab JO,Yang A,Balta O,Schrickel J,Bitzen A,Lüderitz B,Sommer T

更新日期：2006-01-01 00:00:00

abstract：INTRODUCTION:Immediate reinitiation of atrial tachyarrhythmia (IRAT) is an important cause of failure to maintain sinus rhythm. IRAT prevention by overdrive pacing has not been evaluated in a prospective randomized trial. METHODS AND RESULTS:Patients with a DDDRP pacemaker offering temporary atrial overdrive pacing af...

journal_title：Journal of cardiovascular electrophysiology

authors： Israel CW,Grönefeld G,Ehrlich JR,Li YG,Hohnloser SH

更新日期：2003-09-01 00:00:00

abstract：INTRODUCTION:The latest STS guidelines recommend concomitant atrial fibrillation (AF) ablation not only during mitral surgery (Class IA) but also during other-than-mitral cardiac surgery procedures (Class IB) in patients with preoperative AF. Conventional Cox-Maze III/IV procedures are performed on both atria (BA), but...

journal_title：Journal of cardiovascular electrophysiology

authors： Cappabianca G,Ferrarese S,Tutino C,Corazzari C,Matteucci M,Mantovani V,Musazzi A,De Ponti R,Beghi C

更新日期：2019-10-01 00:00:00

abstract：:We report a case of a patient with nonischemic dilated cardiomyopathy and implantable cardioverter-defibrillator, in whom an upgrade to biventricular pacing triggered multiple episodes of ventricular tachycardias (VTs) of two morphologies. First VT presented as repetitive nonsustained arrhythmia of the same morphology...

journal_title：Journal of cardiovascular electrophysiology

authors： Peichl P,Mlcochová H,Kautzner J

更新日期：2007-02-01 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：:A 74-year-old with a history of sinus node dysfunction and intermittent AV block s/p permanent pacemaker implant 6 years prior, complains of one episode of dizziness. ...

journal_title：Journal of cardiovascular electrophysiology

authors： Gianni C,Canby RC,Della Rocca DG,Natale A,Al-Ahmad A

更新日期：2020-11-01 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

abstract：INTRODUCTION:Heart failure patients with left ventricular assist devices (LVADs) are at risk for infection. Cardiac implantable electronic devices (CIEDs) are commonly present in these patients. The course of infections in patients with an LVAD and a CIED is not well described. METHODS AND RESULTS:We identified 6 pati...

journal_title：Journal of cardiovascular electrophysiology

authors： Krishnamoorthy A,Pokorney SD,Lewis RK,Daubert JP,Greenfield RA,Hegland DD,Milano CA,Rogers JG,Schroder JN,Patel CB,Piccini JP

更新日期：2014-11-01 00:00:00

abstract：INTRODUCTION:Although balloon-based techniques, such as the laser balloon (LB) ablation have simplified pulmonary vein isolation (PVI), procedural fluoroscopy usage remains higher in comparison to radiofrequency PVI approaches due to limited 3-dimensional mapping system integration. METHODS:In this prospective study, ...

journal_title：Journal of cardiovascular electrophysiology

authors： Huang HD,Rodriguez JM,Serafini NJ,Macias C,Winterfield J,Sharma PS,Larsen T,Krishnan K,Trohman RG

更新日期：2020-07-01 00:00:00

abstract：INTRODUCTION:Catheter ablation of the parahisian accessory pathways (PHAP) has been established as the definitive therapy for this type of arrhythmia. However, the PHAP proximity to the normal atrioventricular conduction system makes the procedure technically challenging. Here, we have reported a case series of 20 pati...

journal_title：Journal of cardiovascular electrophysiology

authors： Chokr MO,de Moura LG,Aiello VD,Dos Santos Sousa ÍB,Lopes HB,do Carmo AAL,Pisani CF,Hardy CA,de Melo SL,Scanavacca MI

更新日期：2020-06-01 00:00:00

abstract：:A 40-year-old man undergoing electrophysiologic study for recurrent palpitations was found to have a right bundle branch block during sinus rhythm and right bundle potentials occurring after ventricular activation. The sequence of activation of the proximal and distal right bundle potentials was suggestive of a retrog...

journal_title：Journal of cardiovascular electrophysiology

authors： Jazayeri MR,Deshpande SS,Sra JS,Akhtar M

更新日期：1993-06-01 00:00:00

abstract：INTRODUCTION:Torsades de pointes have been observed during treatment with droperidol, a butyrophenone neuroleptic agent. Our objectives were (1) to characterize the effects of droperidol on cardiac repolarization and (2) to evaluate effects of droperidol on a major time-dependent outward potassium current involved in c...

journal_title：Journal of cardiovascular electrophysiology

authors： Drolet B,Zhang S,Deschênes D,Rail J,Nadeau S,Zhou Z,January CT,Turgeon J

更新日期：1999-12-01 00:00:00

abstract：INTRODUCTION:Following conversion of atrial fibrillation (AF), QT interval transiently and variably prolongs and can trigger torsades de pointes (TdP). However, quantitative analysis of risk in this setting is difficult because cycle length variability during AF makes rate-corrected QT impossible to calculate. In this ...

journal_title：Journal of cardiovascular electrophysiology

authors： Darbar D,Hardin B,Harris P,Roden DM

更新日期：2007-06-01 00:00:00

abstract：:A 14-year-old girl with a history of recurrent palpitations and documented wide QRS complex tachycardia was referred for electrophysiologic study and catheter ablation. ...

journal_title：Journal of cardiovascular electrophysiology

authors： Arias MA,Puchol A,Pachón M,Martín-Sierra C

更新日期：2019-07-01 00:00:00

abstract：INTRODUCTION:No studies so far addressed the role of invasive programmed ventricular stimulation (PVS) in myocarditis patient's arrhythmic risk stratification. METHODS AND RESULTS:We present a single-center prospective study on 96 consecutive adult patients (44 ± 13 years, 70.1% males) with myocarditis and ventricular...

journal_title：Journal of cardiovascular electrophysiology

authors： Peretto G,Sala S,Basso C,Della Bella P

更新日期：2020-03-01 00:00:00

abstract：INTRODUCTION:The relationship between the determining factors and beating rates of pulmonary vein (PV) pacemaker cardiomyocytes has not been fully elucidated. The purposes of this study were to compare the electrophysiological characteristics between PV fast and slow pacemaker cardiomyocytes. METHODS:Whole-cell patch ...

journal_title：Journal of cardiovascular electrophysiology

authors： Chen YC,Pan NH,Cheng CC,Higa S,Chen YJ,Chen SA

更新日期：2009-09-01 00:00:00

abstract：INTRODUCTION:The primary goal of the present study was to test whether selective pharmacologic blockade of alpha 1 receptors, and specifically of the subtype alpha 1a, could prevent ventricular fibrillation (VF) during acute myocardial ischemia. BACKGROUND:The development of new autonomic interventions is of clinical ...

journal_title：Journal of cardiovascular electrophysiology

authors： Vanoli E,Hull SS Jr,Foreman RD,Ferrari A,Schwartz PJ

更新日期：1994-01-01 00:00:00

abstract：INTRODUCTION:A novel magnetic navigation system allows remote guidance of floppy radiofrequency (RF) ablation catheters. We evaluated the feasibility of mapping and ablation of left-sided accessory pathways (APs) using the retrograde transaortic approach with this system. This might open the gate to retrograde ablation...

journal_title：Journal of cardiovascular electrophysiology

authors： Thornton AS,Rivero-Ayerza M,Knops P,Jordaens LJ

更新日期：2007-05-01 00:00:00

abstract：INTRODUCTION:The slope of the power spectrum in heart rate variability (HRV) reflects the fractal or scaling behavior in HR dynamics and recently was confirmed as an independent predictor of postmyocardial infarction survival. Whether or not the new measurement in HRV foresees the functional evolution in patients with ...

journal_title：Journal of cardiovascular electrophysiology

authors： Lin LY,Lin JL,Du CC,Lai LP,Tseng YZ,Huang SK

更新日期：2001-01-01 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:Outflow tract ventricular arrhythmias (OT VAs) are common and catheter ablation is an effective treatment option. We sought to investigate the relationship between age-related anatomic aortic root changes and QRS morphology during left ventricular outflow tract (LVOT) pace-mapping using cardiac magnetic re...

journal_title：Journal of cardiovascular electrophysiology

authors： Maeda S,Chik WW,Han Y,Liang JJ,Squara F,Arkles JS,Sadek MM,Santangeli P,Frankel DS,Zado ES,Takebayashi S,Dixit S,Callans DJ,Marchlinski FE,Lin D

更新日期：2015-09-01 00:00:00

abstract：INTRODUCTION:The aims of this study were to investigate: (1) the effect of supplementing the culture medium on preservation of L-type calcium channel current (1Ca,L) in adult rabbit ventricular myocytes cultured for 4 days; and (2) preservation of the ICa,L response in cultured myocytes to the beta-adrenergic agonist i...

journal_title：Journal of cardiovascular electrophysiology

authors： Mitcheson JS,Hancox JC,Levi AJ

更新日期：1997-09-01 00:00:00

abstract：UNLABELLED:Amiodarone/Silymarin Treatment for Sustained Atrial Flutter. INTRODUCTION:Because amiodarone generates free radicals that may mediate amiodarone's toxicity, simultaneous therapy with an antioxidant might be beneficial if the antioxidant did not impair amiodarone's antiarrhythmic action. We tested whether si...

journal_title：Journal of cardiovascular electrophysiology

authors： Vereckei A,Zipes DP,Besch H Jr

更新日期：2003-08-01 00:00:00

abstract：:We describe a patient with bundle branch reentry ventricular tachycardia with 1:1 VA conduction in whom resetting was performed while obtaining simultaneous recordings from the right ventricular apex (V) and His-bundle electrogram. Both the tachycardia return cycle and the V-His interval demonstrated an increasing res...

journal_title：Journal of cardiovascular electrophysiology

authors： Sarter BH,Schwartzman D,Callans DJ,Gottlieb CD,Marchlinski FE

更新日期：1996-11-01 00:00:00

abstract：INTRODUCTION:This study investigated a hybrid approach to reduce the atrial defibrillation threshold (ADFT) by determining the effect of a single linear radiofrequency ablation (RFA) lesion on both the ADFT and activation patterns during atrial fibrillation (AF). METHODS AND RESULTS:In 18 open chest sheep (45 to 57 kg...

journal_title：Journal of cardiovascular electrophysiology

authors： White JB,Fotuhi PC,Pedoto RW,Chattipakorn N,Rogers JM,Ideker RE

更新日期：2001-04-01 00:00:00

abstract：INTRODUCTION:K2p 3.1, also known as TASK-1, is a twin-pore acid-sensitive repolarizing K+ channel, responsible for a background potassium current that significantly contributes to setting the resting membrane potential of cardiac myocytes. Inhibition of IK2p3.1 alters cardiac repolarization and is proarrhythmogenic. In...

journal_title：Journal of cardiovascular electrophysiology

authors： Jones SA,Walton RD,Morton M,Lancaster MK

更新日期：2019-03-01 00:00:00