Potentiating effect of acetylcholine on stimulation by isoproterenol of L-type Ca2+ current and arrhythmogenic triggered activity in guinea pig ventricular myocytes.

abstract：INTRODUCTION:One of the fundamental electrophysiologic problems that has not yet been completely elucidated is the response of cardiac tissue to externally applied electric currents. A limited number of theoretical and experimental techniques has been used to study the electric behavior of cardiac tissue in the presenc...

journal_title：Journal of cardiovascular electrophysiology

authors： Sepulveda NG,Wikswo JP Jr

更新日期：1994-03-01 00:00:00

abstract：INTRODUCTION:Recent recalls of pacemakers and defibrillators cast a spotlight on product reliability. Universal postmortem device analysis could yield valuable information, but little data exist on the rate and feasibility of device examinations following death. This study investigated how morticians manage pacemakers ...

journal_title：Journal of cardiovascular electrophysiology

authors： Kirkpatrick JN,Ghani SN,Burke MC,Knight BP

更新日期：2007-05-01 00:00:00

abstract：:Epicardial ablation may be required to eliminate ventricular tachycardia (VT) in patients with underlying structural heart disease. The decision to gain epicardial access is frequently based on the suspicion of an epicardial origin for the VT and/or presence of an arrhythmogenic substrate. Epicardial pathology and VT ...

journal_title：Journal of cardiovascular electrophysiology

authors： Bazan V,Frankel DS,Santangeli P,Garcia FC,Tschabrunn CM,Marchlinski FE

更新日期：2019-03-01 00:00:00

abstract：INTRODUCTION:Oral anticoagulation therapy reduces significantly the risk of thromboembolism in patients with atrial fibrillation. However, effective oral anticoagulation therapy is not feasible in all patients. The interventional occlusion of the left atrial appendage may reduce the risk of thromboembolism in the latte...

journal_title：Journal of cardiovascular electrophysiology

authors： Omran H,Hardung D,Schmidt H,Hammerstingl C,Lüderitz B

更新日期：2003-09-01 00:00:00

abstract：BACKGROUND:Mitral stenosis (MS) has the highest incidence of atrial fibrillation (AF) in chronic rheumatic valvular disease. There are very few studies in isolated MS comparing histopathological changes in patients with sinus rhythm (SR) and AF. OBJECTIVES:To analyze the histological changes associated with isolated M...

journal_title：Journal of cardiovascular electrophysiology

authors： Shenthar J,Kalpana SR,Prabhu MA,Rai MK,Nagashetty RK,Kamlapurkar G

更新日期：2016-09-01 00:00:00

abstract：INTRODUCTION:Lead dysfunction can lead to serious consequences including failure to treat ventricular tachycardia or fibrillation (VT/VF). The incidence and mechanisms of lead dysfunction following left ventricular assist device (LVAD) implantation are not well-described. We sought to determine the incidence, mechanism...

journal_title：Journal of cardiovascular electrophysiology

authors： Black-Maier E,Lewis RK,Rehorn M,Loungani R,Friedman DJ,Frazier-Mills C,Jackson KP,Atwater BD,Milano CA,Schroder JN,Pokorney SD,Piccini JP

更新日期：2020-06-01 00:00:00

abstract：UNLABELLED:Epicardial Cryoablation in Swine. INTRODUCTION:Cryoablation is an alternative to radiofrequency (RF) energy used in some ablation procedures. Its role and effectiveness compared to irrigated RF in epicardial tissue and epicardial substrates is not yet fully established. METHODS AND RESULTS:Using a swine ch...

journal_title：Journal of cardiovascular electrophysiology

authors： Jauregui-Abularach ME,Campos B,Betensky BP,Michele J,Gerstenfeld EP

更新日期：2012-09-01 00:00:00

abstract：INTRODUCTION:Complex fractionated atrial electrograms (CFAEs) are a substrate modification target in patients with atrial fibrillation (AF). However, whether CFAEs can be also arrhythmogenic grounds of atrial tachycardia (AT) presenting after AF ablation remains to be determined. We investigated the relationship betwee...

journal_title：Journal of cardiovascular electrophysiology

authors： Ban JE,Chen YL,Park HC,Lee HS,Lee DI,Choi JI,Lim HE,Park SW,Kim YH

更新日期：2014-02-01 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：BACKGROUND:The purpose of this study was to assess how well acute procedural outcomes predict the clinical outcome of catheter ablation of premature ventricular complexes (PVCs). METHODS:A consecutive series of 50 patients (28 women, age: 51 ± 13 years) with frequent PVCs was referred for PVC ablation. Acute failure w...

journal_title：Journal of cardiovascular electrophysiology

authors： Baser K,Bas HD,Belardi D,Yokokawa M,Good E,Latchamsetty R,Morady F,Bogun F

更新日期：2014-06-01 00:00:00

abstract：BACKGROUND:Atrial fibrillation (AF) is common in abdominal solid organ transplant recipients and a cause of morbidity and mortality in this population. However, the outcomes of catheter ablation (CA) in transplant recipients with AF remain unclear. This study aimed to elucidate the outcomes of CA in renal and hepatic t...

journal_title：Journal of cardiovascular electrophysiology

authors： Su X,Zhao X,Long DY,Sang CH,Yu RH,Tang RB,Bai R,Liu N,Jiang CX,Li SN,Guo XY,Wang W,Hu R,Du X,Dong JZ,Ma CS

更新日期：2020-12-01 00:00:00

abstract：:It is well established that impulse propagation in cardiac tissue is determined by the interaction between active membrane properties and the passive electrical characteristics of the network formed by individual myocytes. In the past, the intricate microarchitecture of intact cardiac tissue and the limited spatial re...

journal_title：Journal of cardiovascular electrophysiology

authors： Rohr S

更新日期：1995-07-01 00:00:00

abstract：BACKGROUND:Intracardiac thrombus has been reported in anecdotal cases of arrhythmogenic right ventricular cardiomyopathy (ARVC). This prospective study aimed to determine the prevalence, risk factors, and prognosis of intracardiac thrombosis in patients with ARVC. METHODS:From February 2004 to August 2013, transthorac...

journal_title：Journal of cardiovascular electrophysiology

authors： Wu L,Yao Y,Chen G,Fan X,Zheng L,Ding L,Zhang S

更新日期：2014-12-01 00:00:00

abstract：INTRODUCTION:The effects of adenosine on atrial tachycardia (AT) remain controversial, and the mechanistic implications of adenosine termination have not been fully established. The purpose of this study was to elucidate the differential effects of adenosine on focal and macroreentrant AT and describe the characteristi...

journal_title：Journal of cardiovascular electrophysiology

authors： Markowitz SM,Stein KM,Mittal S,Slotwiner DJ,Lerman BB

更新日期：1999-04-01 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：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：INTRODUCTION:Recent studies described the occurrence of conduction block within pulmonary veins. The purpose of this study was to evaluate the prevalence of exit block during arrhythmias that arise in pulmonary veins. METHODS AND RESULTS:Twenty-five patients with atrial tachycardia/fibrillation underwent successful ab...

journal_title：Journal of cardiovascular electrophysiology

authors： Tse HF,Lau CP,Kou W,Pelosi F,Oral H,Kim M,Michaud GF,Knight BP,Moscucci M,Strickberger SA,Morady F

更新日期：2000-04-01 00:00:00

abstract：:Ischemic preconditioning is a phenomenon whereby exposure of the myocardium to a brief episode of ischemia and reperfusion markedly reduces tissue necrosis induced by a subsequent prolonged ischemia. Therefore, it is hoped that elucidation of the mechanism of preconditioning will yield therapeutic strategies capable o...

journal_title：Journal of cardiovascular electrophysiology

authors： Baines CP,Cohen MV,Downey JM

更新日期：1999-05-01 00:00:00

abstract：:Macro-Reentrant ARVC epi-VT with a Focal Endo-Activation. A 55-year-old man with arrhythmogenic right ventricular cardiomyopathy underwent catheter ablation of ventricular tachycardia (VT) with left bundle branch block and left superior axis QRS morphology with an early precordial transition. Endocardial mapping durin...

journal_title：Journal of cardiovascular electrophysiology

authors： Yamada T,Plumb VJ,Tabereaux PB,Kay GN

更新日期：2009-06-01 00:00:00

abstract：INTRODUCTION:The value of noninvasive markers reflecting repolarization and/or conduction abnormalities in identifying patients with abnormal ECG showing a pattern of atypical right bundle branch block and ST elevation syndrome (Brugada syndrome) at risk for life-threatening arrhythmias is controversial. Because right ...

journal_title：Journal of cardiovascular electrophysiology

authors： Eckardt L,Bruns HJ,Paul M,Kirchhof P,Schulze-Bahr E,Wichter T,Breithardt G,Borggrefe M,Haverkamp W

更新日期：2002-08-01 00:00:00

abstract：BACKGROUND:Although pulmonary vein antrum isolation (PVAI) may cure atrial fibrillation (AF) and improve left atrial (LA) function, the effect of extensive LA ablation on LA function is not well known. OBJECTIVE:To assess the impact of PVAI on LA function remotely postablation. METHODS:Consecutive patients undergoing...

journal_title：Journal of cardiovascular electrophysiology

authors： Verma A,Kilicaslan F,Adams JR,Hao S,Beheiry S,Minor S,Ozduran V,Claude Elayi S,Martin DO,Schweikert RA,Saliba W,Thomas JD,Garcia M,Klein A,Natale A

更新日期：2006-07-01 00:00:00

abstract：INTRODUCTION:Recent experimental evidence demonstrates that a point stimulus generates a nonuniform distribution of transmembrane potential (virtual electrode pattern) consisting of large adjacent areas of depolarization and hyperpolarization. This simulation study focuses on the role of virtual electrodes in reentry i...

journal_title：Journal of cardiovascular electrophysiology

authors： Lindblom AE,Roth BJ,Trayanova NA

更新日期：2000-03-01 00:00:00

abstract：INTRODUCTION:The high posterolateral right atrium (RA) is considered the "sinus node area," but we lack information on endocardial atrial activation in sinus rhythm. We studied RA and left atrial (LA) endocardial activation in the electrophysiology laboratory. METHODS AND RESULTS:Thirty-five patients (21 men) aged 47 ...

journal_title：Journal of cardiovascular electrophysiology

authors： Cosío FG,Martín-Peñato A,Pastor A,Núñez A,Montero MA,Cantale CP,Schames S

更新日期：2004-05-01 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：INTRODUCTION:Significant species-, tissue-, and age-dependent differences have been described for the L-type calcium current (ICa). Therefore, extrapolation of data obtained from the many animal models to human cardiac physiology is difficult. In this study, we have characterized the voltage-dependent properties of ICa...

journal_title：Journal of cardiovascular electrophysiology

authors： Cohen NM,Lederer WJ

更新日期：1993-08-01 00:00:00

abstract：BACKGROUND:Electrical connections between ipsilateral pulmonary veins (PVs) have been reported histologically and electrophysiologically. This study investigated the impact of electrical connections between ipsilateral PVs on PV isolation using second-generation cryoballoons (CB2-PVI). METHODS:Five hundred eleven atri...

journal_title：Journal of cardiovascular electrophysiology

authors： Miyazaki S,Kajiyama T,Watanabe T,Hada M,Nakamura H,Hachiya H,Tada H,Hirao K,Iesaka Y

更新日期：2019-01-01 00:00:00

abstract：BACKGROUND:Data comparing dabigatran with rivaroxaban regarding the resolution of left atrial/left atrial appendage (LA/LAA) thrombus in patients with nonvalvular atrial fibrillation (AF) are scarce. This study aimed to compare the efficacy and safety of dabigatran vs rivaroxaban regarding the resolution of LA/LAA thro...

journal_title：Journal of cardiovascular electrophysiology

authors： Lin C,Quan J,Bao Y,Hua W,Ke M,Zhang N,Jin Q,Xie Y,Wei Y,Ling T,Pan W,Wu L,Xie Y

更新日期：2020-03-01 00:00:00

abstract：:Due to the growing number of patients treated with cardiac implantable electronic devices (CIEDs) there is an increased need for lead management, evaluation, and extraction. While CIED lead extraction has many indications, a consistent approach to preprocedural planning should be applied in all cases, including a thor...

journal_title：Journal of cardiovascular electrophysiology

authors： Lewis RK,Pokorney SD,Hegland DD,Piccini JP

更新日期：2020-07-01 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：:A 31-year-old woman with tricuspid atresia and a palliative Waterston shunt presented with intractable poorly tolerated supraventricular tachycardia. Electrophysiologic evaluation was consistent with AV nodal reentrant tachycardia. The fast pathway region was mapped electroanatomically during tachycardia and with cons...

journal_title：Journal of cardiovascular electrophysiology

authors： Khairy P,Seslar SP,Triedman JK,Cecchin F

更新日期：2004-06-01 00:00:00