Iterative atrial tachycardia originating from the coronary sinus musculature.

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：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

authors： Caliskan K,Ujvari B,Bauernfeind T,Theuns DA,Van Domburg RT,Akca F,Jordaens L,Simoons ML,Szili-Torok T

更新日期：2012-09-01 00:00:00

abstract：INTRODUCTION:It has been speculated that pacemaker current (I(f)) in human atria could play a role in causing ectopic atrial automaticity. Ivabradine is a novel selective and specific I(f) inhibitor in the sinus node that reduces heart rate without any negative inotropic effect. The aim of the study was to explore poss...

journal_title：Journal of cardiovascular electrophysiology

authors： El Chemaly A,Magaud C,Patri S,Jayle C,Guinamard R,Bois P

更新日期：2007-11-01 00:00:00

abstract：INTRODUCTION:Cardiac sympathetic activation facilitates atrial electrical remodeling during atrial fibrillation (AF). Selective ablation of the distal part of the ligament of Marshall (LOMLSPV ) could decrease cardiac sympathetic innervation. This study aimed to investigate the effects of LOMLSPV ablation on atrial ele...

journal_title：Journal of cardiovascular electrophysiology

authors： Yu X,He W,Qin Z,Liu S,Ma R,Luo D,Hu H,Xie J,He B,Lu Z,Jiang H

更新日期：2018-09-01 00:00:00

abstract：INTRODUCTION:Substrate-based ablation for scar-related ventricular tachycardia (VT) has gained prominence: however, there is limited data comparing it to ablation guided predominantly by activation and entrainment mapping of inducible and hemodynamically tolerated VTs. We compared the acute procedural efficacy and outc...

journal_title：Journal of cardiovascular electrophysiology

authors： Kumar S,Baldinger SH,Romero J,Fujii A,Mahida SN,Tedrow UB,Stevenson WG

更新日期：2016-12-01 00:00:00

abstract：INTRODUCTION:Catheter ablation of atrial fibrillation (AF) currently relies on eliminating triggers, and no reliable method exists to map the arrhythmia itself to identify ablation targets. The aim of this multicenter study was to define the use of Focal Impulse and Rotor Modulation (FIRM) for identifying ablation targ...

journal_title：Journal of cardiovascular electrophysiology

authors： Shivkumar K,Ellenbogen KA,Hummel JD,Miller JM,Steinberg JS

更新日期：2012-12-01 00:00:00

abstract：INTRODUCTION:To explore the relationship between recurrence of atrial fibrillation (AF) and the autonomic nervous activity evaluated by heart rate variability (HRV) indices after radiofrequency catheter ablation (RFCA) in the early period. METHODS:We enrolled 102 patients with paroxysmal AF and tested the HRV indices ...

journal_title：Journal of cardiovascular electrophysiology

authors： Zhu Z,Wang W,Cheng Y,Wang X,Sun J

更新日期：2020-06-01 00:00:00

abstract：INTRODUCTION:The reason for the increased defibrillation efficacy of biphasic shocks over monophasic shock is not definitely known. METHODS AND RESULTS:In six anesthetized pigs, we mapped the epicardium after transvenous defibrillation shocks to compare the activation patterns following successful biphasic shocks with...

journal_title：Journal of cardiovascular electrophysiology

authors： Usui M,Callihan RL,Walker RG,Walcott GP,Rollins DL,Wolf PD,Smith WM,Ideker RE

更新日期：1996-04-01 00:00:00

abstract：:The ECG appearance in Brugada syndrome is caused by failure of the dome of the action potential to develop. Increased activity of the I(to) current in epicardial cells generates a transmural gradient with repolarization dispersion between the epicardium and the endocardium in the right ventricular wall, thus favoring ...

journal_title：Journal of cardiovascular electrophysiology

authors： Abud A,Bagattin D,Goyeneche R,Becker C

更新日期：2006-02-01 00:00:00

abstract：INTRODUCTION:The characteristics of the epicardial (EPI) substrate responsible for ventricular tachycardia (VT) in ischemic cardiomyopathy (ICM) are undefined, and data on the long-term outcomes of EPI catheter ablation limited. We evaluated the prevalence, electrophysiologic features, and outcomes of catheter ablation...

journal_title：Journal of cardiovascular electrophysiology

authors： Hayashi T,Liang JJ,Muser D,Shirai Y,Enriquez A,Garcia FC,Supple GE,Schaller RD,Frankel DS,Lin D,Nazarian S,Zado ES,Arkles JS,Dixit S,Callans DJ,Marchlinski FE,Santangeli P

更新日期：2018-11-01 00:00:00

abstract：BACKGROUND:Atrio-esophageal fistulas have been described as a consequence of radiofrequency (RF) ablation for the treatment of atrial fibrillation (AF). However, whether cryoablation can avoid this potential fatal complication remains unclear. METHODS AND RESULTS:We studied the effects of direct application of RF and ...

journal_title：Journal of cardiovascular electrophysiology

authors： Ripley KL,Gage AA,Olsen DB,Van Vleet JF,Lau CP,Tse HF

更新日期：2007-06-01 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:Isolation of pulmonary veins (PVs) and the posterior left atrium (LA) can be safely performed by radiofrequency hot balloon (RHB)-based box isolation. However, data on long-term effects for the treatment of atrial fibrillation (AF) by the use of this method remain limited. METHODS AND RESULTS:We treated 2...

journal_title：Journal of cardiovascular electrophysiology

authors： Yamaguchi Y,Sohara H,Takeda H,Nakamura Y,Ihara M,Higuchi S,Satake S

更新日期：2015-12-01 00:00:00

abstract：:The Res-Q Arrhythmia Control Device (Intermedics Inc.) is one of the latest entries into the growing implantable cardioverter defibrillator (ICD) market. Dysrhythmias are classified according to their zone of detection, with a bradycardia zone, up to 3 tachycardia zones, and a fibrillation zone. Detection criterion, t...

journal_title：Journal of cardiovascular electrophysiology

authors： Miller RE,Wilkoff BL

更新日期：1995-02-01 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：BACKGROUND:Atrial fibrillation (AF) increases morbidity and mortality in patients with previous myocardial infarction and left ventricular systolic dysfunction. The purpose of this study was to identify patients with a high risk for new-onset AF in this population using invasive and noninvasive electrophysiological tes...

journal_title：Journal of cardiovascular electrophysiology

authors： Jons C,Raatikainen P,Gang UJ,Huikuri HV,Joergensen RM,Johannesen A,Dixen U,Messier M,McNitt S,Thomsen PE,Cardiac Arrhythmias and Risk Stratification after Acute Myocardial Infarction (CARISMA) Study Group.

更新日期：2010-09-01 00:00:00

abstract：:There is an increasing need for invasive electrophysiologists to appreciate the exact anatomy of the epicardial space and the coronary veins. The location of the epicardial fat, the complementary relationship with the main cardiac veins, and the location of sensitive structures (arteries, phrenic nerve, esophagus) hav...

journal_title：Journal of cardiovascular electrophysiology

authors： Lachman N,Syed FF,Habib A,Kapa S,Bisco SE,Venkatachalam KL,Asirvatham SJ

更新日期：2010-12-01 00:00:00

abstract：INTRODUCTION:The purpose of this investigation is to evaluate whether a prolonged detection interval for life threatening ventricular tachyarrhythmia (VT) is able to reduce therapies (Rx) delivered by an implantable cardioverter/defibrillator (ICD). Until now, only the PREPARE trial demonstrated a reduction of ICD Rx i...

journal_title：Journal of cardiovascular electrophysiology

authors： Schwab JO,Gasparini M,Lunati M,Proclemer A,Kaup B,Santi E,Ligorio G,Klersy C,DE Sousa J,Okreglicki A,Arenal A,Wijffels M,Lemke B

更新日期：2009-06-01 00:00:00

abstract：BACKGROUND:This study aimed to assess manpower and resource consumption of the HomeGuide workflow model for remote monitoring (Biotronik Home Monitoring [HM], Biotronik SE & Co. KG, Berlin, Germany) of cardiac implantable electronic devices in daily clinical practice. METHODS:The model established a cooperative intera...

journal_title：Journal of cardiovascular electrophysiology

authors： Ricci RP,Morichelli L,D'Onofrio A,Calò L,Vaccari D,Zanotto G,Curnis A,Buja G,Rovai N,Gargaro A

更新日期：2014-11-01 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：INTRODUCTION:The role of increased dispersion of repolarization in the genesis of torsades de pointes in patients with long QT syndrome has been clarified, but its role in the genesis of idiopathic ventricular fibrillation (VF) is not yet known. To investigate the pathogenesis of VF, we recorded monophasic action poten...

journal_title：Journal of cardiovascular electrophysiology

authors： Matsuo K,Shimizu W,Kurita T,Suyama K,Aihara N,Kamakura S,Shimomura K

更新日期：1998-01-01 00:00:00

abstract：:A case of intermittent sinus parasystole in which the parasystolic focus is protected from the dominant sinus rhythm only during the second half of its intrinsic cycle is reported. In addition, a modulating (i.e., electronic) effect is often clearly exerted from the dominant rhythm upon the focus during the protected ...

journal_title：Journal of cardiovascular electrophysiology

authors： Satullo G,Donato A,Busá G,Cavallaro L

更新日期：1996-03-01 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：: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：INTRODUCTION:The most frequent complications of AF ablation (AFA) are related to vascular access, but there is little evidence as to how these can be minimized. METHODS:Consecutive patients undergoing AFA at a high-volume center received either standard care (Group S) or routine ultrasound-guided vascular access (Grou...

journal_title：Journal of cardiovascular electrophysiology

authors： Wynn GJ,Haq I,Hung J,Bonnett LJ,Lewis G,Webber M,Waktare JE,Modi S,Snowdon RL,Hall MC,Todd DM,Gupta D

更新日期：2014-07-01 00:00:00

abstract：INTRODUCTION:The pulmonary veins (PVs) are a dominant source of triggers initiating atrial fibrillation (AF). While recent evidence implicates these structures in the maintenance of paroxysmal AF, their role in permanent AF is not known. The current study aims to compare the contribution of PV activity to the maintenan...

journal_title：Journal of cardiovascular electrophysiology

authors： Sanders P,Nalliah CJ,Dubois R,Takahashi Y,Hocini M,Rotter M,Rostock T,Sacher F,Hsu LF,Jönsson A,O'Neill MD,Jaïs P,Haïssaguerre M

更新日期：2006-09-01 00:00:00

abstract：INTRODUCTION:Previous studies have underscored the importance of the interpulmonary isthmus in the initiation and maintenance of atrial fibrillation (AF). The efficacy of additional radiofrequency energy delivery in the interpulmonary isthmus following pulmonary vein antral isolation (PVAI) was investigated. METHODS A...

journal_title：Journal of cardiovascular electrophysiology

authors： Letsas KP,Efremidis M,Vlachos K,Karlis D,Lioni L,Asvestas D,Valkanas K,Mihas CC,Sideris A

更新日期：2014-07-01 00:00:00

abstract：:Atrial flutter is due to large single reentrant loops, typically oriented around the caval veins and a line of functional conduction block in between. These reentrant circuits can easily be terminated by properly timed extra beats colliding in the antidromic direction with the reentrant orthodromic wavefront and being...

journal_title：Journal of cardiovascular electrophysiology

authors： Schoels W,Becker R

更新日期：1998-08-01 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:High recurrence rate is still a major problem associated with ablation of paroxysmal atrial fibrillation (AF). Most of the recurrences occur within 6 months after ablation. The characteristics of very late recurrent AF (>12 months after ablation) have not been reported. METHODS AND RESULTS:Two hundred sev...

journal_title：Journal of cardiovascular electrophysiology

authors： Hsieh MH,Tai CT,Tsai CF,Lin WS,Lin YK,Tsao HM,Huang JL,Ueng KC,Yu WC,Chan P,Ding YA,Chang MS,Chen SA

更新日期：2003-06-01 00:00:00