The relationship of bipolar left ventricular pacing stimulus intensity to cardiac depolarization and repolarization in humans with cardiac resynchronization devices.

abstract：:A patient with drug-refractory paroxysmal atrial fibrillation associated with rapid ventricular rate underwent biatrial pacemaker implantation. During elective replacement of the pacemaker, a significant voltage- and frequency-dependent decrease in ventricular rate was achieved by high-frequency electrical stimulation...

journal_title：Journal of cardiovascular electrophysiology

authors： Vágó H,Róka A,Acsády G,Merkely B

更新日期：2004-05-01 00:00:00

abstract：:Electrical instability of the heart has numerous congenital origins. This review approaches the problems from a morphological standpoint, utilizing selected examples from my own studies of the human cardiac conduction system performed during the last three decades. Subjects discussed include multifocal Purkinje cell t...

journal_title：Journal of cardiovascular electrophysiology

authors： James TN

更新日期：1993-12-01 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: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：:It has been demonstrated that idiopathic ventricular fibrillation (VF) can be triggered by ventricular premature beats (VPBs) arising from the Purkinje fibers. Eliminating these VPBs by radiofrequency catheter ablation prevented VF recurrences. Whether the same pathophysiology and the same treatment option exist in pa...

journal_title：Journal of cardiovascular electrophysiology

authors： Li YG,Grönefeld G,Israel C,Hohnloser SH

更新日期：2004-01-01 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：:Pulmonary vein (PV) arrhythmogenicity underlying the maintenance of atrial fibrillation (AF) may be explained by three mechanisms: enhanced automaticity, triggered activity, and reentry. There are only a few reports describing sustained PV tachycardias (PVT) following electrical disconnection from the left atrium, in ...

journal_title：Journal of cardiovascular electrophysiology

authors： Rostock T,O'Neill MD,Takahashi Y,Sanders P,Haïssaguerre M

更新日期：2007-04-01 00:00:00

abstract：:We describe a case of symptomatic pseudo-AV block due to His-bundle parasystole masquerading as exercise-induced 2:1 AV block. Electrophysiologic study revealed the presence of His-bundle parasystole, and the fluctuation of parasystolic cycle length could be explained by the concept of modulated parasystole. Modulated...

journal_title：Journal of cardiovascular electrophysiology

authors： Kasaoka Y,Ajiki K,Hayami N,Murakawa Y

更新日期：2001-08-01 00:00:00

abstract：BACKGROUND:Atrial fibrillation (AF) is the most commonly encountered clinical arrhythmia, predominantly affecting elderly patients. There is a continued need for new antiarrhythmic drugs to treat the ever-increasing number of patients with this arrhythmia. Dronedarone is a new antiarrhythmic compound currently being de...

journal_title：Journal of cardiovascular electrophysiology

authors： Hohnloser SH,Connolly SJ,Crijns HJ,Page RL,Seiz W,Torp-Petersen C

更新日期：2008-01-01 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

authors： Liang Y,Yu H,Zhou W,Xu G,Sun YI,Liu R,Wang Z,Han Y

更新日期：2015-12-01 00:00:00

abstract：INTRODUCTION:As treatment options for ventricular tachycardia (VT) continue to evolve, the use of radiofrequency catheter ablation is rapidly expanding. However, in the presence of multiple morphologies of VT, achieving successful results may seem less likely. We report two patients with multiple morphologies of VT who...

journal_title：Journal of cardiovascular electrophysiology

authors： Underwood RD,Deshpande SS,Biehl M,Cowan M,Akhtar M,Jazayeri MR

更新日期：1995-11-01 00:00:00

abstract：INTRODUCTION:Despite the importance of neurogenic initiation of rapid firing from pulmonary veins (PVs), the mechanism of autonomic modulation of electrophysiological properties of the PV myocardium to form a substrate for atrial arrhythmia remains poorly understood. METHODS AND RESULTS:A 2-microelectrode technique wa...

journal_title：Journal of cardiovascular electrophysiology

authors： Egorov YV,Kuz'min VS,Glukhov AV,Rosenshtraukh LV

更新日期：2015-10-01 00:00:00

abstract：INTRODUCTION:Ventricular tachycardia (VT) after postinfarct ventricular septal defect (VSD) repair has not been well characterized. METHODS AND RESULTS:A 55-year-old man developed refractory VT after inferior wall infarction and VSD repair. Entrainment demonstrated a broad reentry circuit path (outer loop) between the...

journal_title：Journal of cardiovascular electrophysiology

authors： Ellison KE,Stevenson WG,Couper GS,Friedman PL

更新日期：1997-10-01 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

authors： Kim KH,Choi KJ,Kim SH,Nam GB,Kim YH

更新日期：2012-02-01 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:We conducted this pilot randomized clinical trial to determine the feasibility of a large clinical trial aimed at testing whether early use of catheter ablation of ventricular tachycardia (VT) is superior to antiarrhythmic medications at reducing mortality. METHODS AND RESULTS:Patients were enrolled at 4 ...

journal_title：Journal of cardiovascular electrophysiology

authors： Al-Khatib SM,Daubert JP,Anstrom KJ,Daoud EG,Gonzalez M,Saba S,Jackson KP,Reece T,Gu J,Pokorney SD,Granger CB,Hess PL,Mark DB,Stevenson WG

更新日期：2015-02-01 00:00:00

abstract：:Several techniques are used for AF ablation, but no general consensus exists as to which technique is the most effective. At our center, we have developed a technique for isolating the pulmonary veins (PVs) at their antrum. The technique is guided by intracardiac echocardiography (ICE) and mapping with a circular (Las...

journal_title：Journal of cardiovascular electrophysiology

authors： Verma A,Marrouche NF,Natale A

更新日期：2004-11-01 00:00:00

abstract：INTRODUCTION:Ablation of atrial vagal ganglia has been associated with improved pulmonary vein isolation (PVI) outcomes. Disruption of vagal reflexes results in heart rate (HR) increase. We investigated the association between HR change after PVI and freedom from atrial fibrillation (AF) at 1 year. METHODS AND RESULTS...

journal_title：Journal of cardiovascular electrophysiology

authors： Goff ZD,Laczay B,Yenokyan G,Sivasambu B,Sinha SK,Marine JE,Ashikaga H,Berger RD,Akhtar T,Spragg DD,Calkins H

更新日期：2019-12-01 00:00:00

abstract：INTRODUCTION:Although premature beats originating in areas of ischemia have been shown to be important in initiating ventricular fibrillation (VF), the participation of the ischemic zone in maintenance of VF has not been investigated. METHODS AND RESULTS:Ten normal dogs underwent induction of two separate episodes of ...

journal_title：Journal of cardiovascular electrophysiology

authors： Rankovic V,Patel N,Jain S,Robinson N,Goldberger J,Horvath G,Kadish A

更新日期：1999-08-01 00:00:00

abstract：INTRODUCTION:Rhodiola, a popular plant in Tibet, has been proven to decrease arrhythmia. The aim of this study was to elucidate the molecular mechanism and electrophysiological properties of rhodiola in the suppression of atrial fibrillation. METHODS:This study consisted of 3 groups as follows: Group 1: normal control...

journal_title：Journal of cardiovascular electrophysiology

authors： Liu SH,Hsiao YW,Chong E,Singhal R,Fong MC,Tsai YN,Hsu CP,Chen YC,Chen YJ,Chiou CW,Chiang SJ,Chang SL,Chen SA

更新日期：2016-09-01 00:00:00

abstract：:Syncope is frequently neurally mediated and can seriously affect quality of life. Different ablation strategies have been successfully performed. These approaches have not gained wide acceptance and are quite extensive and complex, exposing patients to significant risks. This article reports the case of a 16-year-old ...

journal_title：Journal of cardiovascular electrophysiology

authors： Debruyne P

更新日期：2016-09-01 00:00:00

abstract：:Atrial fibrillation (AF) and congestive heart failure (CHF) are two increasingly common cardiac disorders with a growing prevalence in the overall population. Improved treatment of acute medical conditions has increased the incidence of these cardiac disorders. AF and CHF have similar epidemiologic characteristics and...

journal_title：Journal of cardiovascular electrophysiology

authors： Ehrlich JR,Nattel S,Hohnloser SH

更新日期：2002-04-01 00:00:00

abstract：INTRODUCTION:Repolarization dynamics, reflecting adaptation of QT to changing heart rate, is considered a marker of unfavorable prognosis in patients with heart diseases. We aimed to evaluate the prognostic value of QT/RR slope in predicting total mortality (TM) and sudden death (SD) in patients with congestive heart f...

journal_title：Journal of cardiovascular electrophysiology

authors： Cygankiewicz I,Zareba W,Vazquez R,Almendral J,Bayes-Genis A,Fiol M,Valdes M,Macaya C,Gonzalez-Juanatey JR,Cinca J,Bayes de Luna A,MUSIC Investigators.

更新日期：2008-10-01 00:00:00

abstract：INTRODUCTION:Despite technical progress, ventricular tachycardia (VT) recurrence after unipolar ablation remains relatively high (12%-47%). Bipolar ablation has been proposed as an appealing solution that may overcome limitations associated with unipolar ablation settings. We designed an animal study to compare bipolar...

journal_title：Journal of cardiovascular electrophysiology

authors： Soucek F,Caluori G,Lehar F,Jez J,Pesl M,Wolf J,Wojtaszczyk A,Belaskova S,Starek Z

更新日期：2020-05-01 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：INTRODUCTION:Arrhythmogenic right ventricular cardiomyopathy/dysplasia (ARVC/D) is an inherited cardiomyopathy characterized by ventricular arrhythmias and heart failure. The variable phenotype suggesting that determined environmental factors may have an influence. The aim of our study was to discover the impact of the...

journal_title：Journal of cardiovascular electrophysiology

authors： Ruiz Salas A,Barrera Cordero A,Navarro-Arce I,Jiménez Navarro M,García Pinilla JM,Cabrera Bueno F,Abdeselam-Mohamed N,Morcillo-Hidalgo L,Gómez Doblas JJ,de Teresa E,Alzueta J

更新日期：2018-11-01 00:00:00

abstract：INTRODUCTION:The genesis of repolarization abnormalities of ECG waveforms in atrial septal defect (ASD), which typically is characterized by right ventricular (RV) volume overload, has not been explored, particularly in association with postoperative hemodynamic improvement. The aim of this study was to evaluate the ef...

journal_title：Journal of cardiovascular electrophysiology

authors： Asano Y,Izumida N,Kawano S,Sawanobori T,Hiraoka M

更新日期：2004-08-01 00:00:00

abstract：INTRODUCTION:Epicardial procedures frequently require pericardial manipulation. We aimed to develop a nonsurgical percutaneous pericardial modification tool that may (1) facilitate epicardial-based procedures by enabling adhesiolysis or (2) attenuate the myocardial constraining effect of the pericardium. METHODS:Three...

journal_title：Journal of cardiovascular electrophysiology

authors： Killu AM,Naksuk N,Desimone CV,Gaba P,Suddendorf S,Powers J,Ladewig DJ,Lerman LO,Borlaug BA,Asirvatham SJ

更新日期：2017-03-01 00:00:00

abstract：:Characterization of the substrate and mechanism of epicardial ventricular tachycardia (VT) associated with idiopathic nonischemic dilated cardiomyopathy is limited. We report a case of successful mapping and ablation of an epicardial VT by a percutaneous transthoracic approach in a patient with idiopathic dilated card...

journal_title：Journal of cardiovascular electrophysiology

authors： Swarup V,Morton JB,Arruda M,Wilber DJ

更新日期：2002-11-01 00:00:00

abstract：INTRODUCTION:Right ventricular outflow tract ventricular arrhythmias (RVOT VAs) often originate in the voltage-transitional zone. The target electrogram could be compromised by the architecture of the roving catheter. Mini-electrodes could improve the mapping resolution, especially in low-voltage areas. The aim was to ...

journal_title：Journal of cardiovascular electrophysiology

authors： Liu M,Jiang J,Su C,Li J,Chen X,Ma Y,Feng C,Liu J,Dong Y,Tang A,He J,Wang L

更新日期：2019-05-01 00:00:00