Treatment of pyridostigmine-induced AV block with hyoscyamine in a patient with myasthenia gravis.

abstract：BACKGROUND:Ablation strategies have been developed to improve outcomes in patients with persistent atrial fibrillation (PsAF). However, the impact of atrial fibrillation (AF) termination on late AF recurrence is not well known. The aim of our study was to evaluate the impact of AF termination to atrial tachycardia (AT)...

journal_title：Journal of cardiovascular electrophysiology

authors： Efremidis M,Vlachos K,Letsas KP,Bazoukis G,Martin R,Frontera A,Asvestas D,Saplaouras A,Kitamura Τ,Georgopoulos S,Valkanas K,Karamichalakis N,Takigawa M,Sideris A,Derval N,Sacher F,Jais P

更新日期：2019-01-01 00:00:00

abstract：BACKGROUND:Unfortunately, some patients with long QT syndrome (LQTS) experience breakthrough cardiac events (BCEs) despite maximal therapy. Small studies have shown that refractory LQTS cases may benefit from intentional permanent atrial pacing (IPAP). As such, we sought to determine the genotype-specific utilization a...

journal_title：Journal of cardiovascular electrophysiology

authors： Kowlgi GN,Giudicessi JR,Barake W,Bos JM,Ackerman MJ

更新日期：2021-01-29 00:00:00

abstract：INTRODUCTION:Implantable cardioverter defibrillators (ICDs) are proven to prevent sudden death in patients at elevated risk for sustained ventricular tachycardia or fibrillation. Complications related to ICD failure can stem from lead dysfunction, manufacturing defects, patient characteristics, or implantation techniqu...

journal_title：Journal of cardiovascular electrophysiology

authors： Barbhaiya CR,Niazi O,Bostrom J,Patil S,Jankelson L,Bernstein S,Park D,Holmes D,Aizer A,Chinitz LA

更新日期：2020-06-01 00:00:00

abstract：BACKGROUND:The reliable endpoint for ablation of longstanding persistent atrial fibrillation (LPAF) has not been clearly established. METHODS AND RESULTS:This study included 140 patients who underwent catheter ablation for drug-refractory LPAF. A stepwise ablation approach included circumferential pulmonary vein isola...

journal_title：Journal of cardiovascular electrophysiology

authors： Park YM,Choi JI,Lim HE,Park SW,Kim YH

更新日期：2012-10-01 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：:QT dispersion is defined as the difference in QT interval between the different leads of the surface 12-lead ECG. This may provide an indirect measure of the underlying inhomogeneity of myocardial repolarization, which is believed to be important in arrhythmogenesis. Methodology for determining QT dispersion varies si...

journal_title：Journal of cardiovascular electrophysiology

authors： Statters DJ,Malik M,Ward DE,Camm AJ

更新日期：1994-08-01 00:00:00

abstract：INTRODUCTION:Atrial fibrillation (AF) ablation is increasingly common, but is associated with potential major complications. Technology, experience, and protocols have evolved significantly in recent times, and may have impacted procedural safety. We sought to compare AF ablation safety profiles, including complication...

journal_title：Journal of cardiovascular electrophysiology

authors： Muthalaly RG,John RM,Schaeffer B,Tanigawa S,Nakamura T,Kapur S,Zei PC,Epstein LM,Tedrow UB,Michaud GF,Stevenson WG,Koplan BA

更新日期：2018-06-01 00:00:00

abstract：INTRODUCTION:Computational modeling of cardiac arrhythmogenesis and arrhythmia maintenance has made a significant contribution to the understanding of the underlying mechanisms of arrhythmia. We hypothesized that a cardiac model using personalized electro-anatomical parameters could define the underlying ventricular ta...

journal_title：Journal of cardiovascular electrophysiology

authors： Chen Z,Cabrera-Lozoya R,Relan J,Sohal M,Shetty A,Karim R,Delingette H,Gill J,Rhode K,Ayache N,Taggart P,Rinaldi CA,Sermesant M,Razavi R

更新日期：2016-07-01 00:00:00

abstract：INTRODUCTION:We examined whether quantification of T-wave alternans (TWA) enhances this parameter's capacity to evaluate the risk for total and cardiovascular mortality and sudden cardiac death (SCD). METHODS AND RESULTS:The Finnish Cardiovascular Study (FINCAVAS) enrolled consecutive patients (n = 2,119; 1,342 men an...

journal_title：Journal of cardiovascular electrophysiology

authors： Minkkinen M,Kähönen M,Viik J,Nikus K,Lehtimäki T,Lehtinen R,Kööbi T,Turjanmaa V,Kaiser W,Verrier RL,Nieminen T

更新日期：2009-04-01 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: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:Discriminating between ventricular tachycardia (VT) with 1:1 ventriculoatrial association and sinus tachycardia can be difficult, even when assisted by intracardiac tracings. In this study, we used a new computer algorithm to perform correlation waveform analyses on intracardiac atrial electrograms to help...

journal_title：Journal of cardiovascular electrophysiology

authors： Saba S,Gorodeski R,Yang S,MacAdam D,Link MS,Homoud MK,Estes NA 3rd,Wang PJ

更新日期：2001-02-01 00:00:00

abstract：INTRODUCTION:Accurate analysis of the arrhythmia substrate is important for successful radiofrequency ablation of sustained ventricular tachycardia (VT) after myocardial infarction (MI). METHODS AND RESULTS:A multielectrode "basket" catheter capable of endocardial recording and pacing was inserted percutaneously into ...

journal_title：Journal of cardiovascular electrophysiology

authors： Greenspon AJ,Hsu SS,Borge R,Smith MF,Eldar M

更新日期：1999-11-01 00:00:00

abstract：BACKGROUND:Repeated freezing (bonus applications) during cryoballoon pulmonary vein isolation (PVI) has been suggested to improve lesion durability. However, the long-term clinical effects of repeated freezing have not been investigated. METHODS AND RESULTS:A total of 51 patients (pts) with paroxysmal atrial fibrillat...

journal_title：Journal of cardiovascular electrophysiology

authors： Chun KR,Fürnkranz A,Köster I,Metzner A,Tönnis T,Wohlmuth P,Wissner E,Schmidt B,Ouyang F,Kuck KH

更新日期：2012-08-01 00:00:00

abstract：INTRODUCTION:Atrial fibrillation and atrial flutter often coexist. The long-term occurrence of atrial fibrillation in patients presenting with atrial flutter alone is unknown. We report the long-term follow-up in patients who underwent cavotricuspid isthmus ablation for treatment of lone atrial flutter. METHODS AND RE...

journal_title：Journal of cardiovascular electrophysiology

authors： Ellis K,Wazni O,Marrouche N,Martin D,Gillinov M,McCarthy P,Saad EB,Bhargava M,Schweikert R,Saliba W,Bash D,Rossillo A,Erciyes D,Tchou P,Natale A

更新日期：2007-08-01 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：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：:Altering voltage-gated ion channel currents, by changing channel number or voltage-dependent kinetics, regulates the propagation of action potentials along the plasma membrane of individual cells and from one cell to its neighbors. Functional increases in the number of cardiac sodium channels (Na(V)1.5) at the myocard...

journal_title：Journal of cardiovascular electrophysiology

authors： Shibata EF,Brown TL,Washburn ZW,Bai J,Revak TJ,Butters CA

更新日期：2006-05-01 00:00:00

abstract：:We present a unique case where early proarrhythmic and late antiarrhythmic characteristics of interatrial conduction delay were observed during the long-term progression of HCM. Occurrence of AT constantly increased as the interatrial conduction delay became more prominent, while the P-wave width in sinus rhythm and t...

journal_title：Journal of cardiovascular electrophysiology

authors： Bauernfeind T,Caliskan K,Vletter WB,Ten Cate FJ,Dabiri L,de Groot N,Jordaens L,Szili-Torok T

更新日期：2011-05-01 00:00:00

abstract：INTRODUCTION:Hemodynamic collapse precludes extensive catheter mapping to identify focal target regions in many patients with ventricular tachycardia (VT) associated with heart disease. This study tested the feasibility of catheter ablation of poorly tolerated VTs by targeting a region identified during sinus rhythm. ...

journal_title：Journal of cardiovascular electrophysiology

authors： Ellison KE,Stevenson WG,Sweeney MO,Lefroy DC,Delacretaz E,Friedman PL

更新日期：2000-01-01 00:00:00

abstract：BACKGROUND:Cardiac resynchronization therapy (CRT) is commonly used to manage heart failure, yet published guidelines do not distinguish between recommendations for pacemakers (CRT-P) and defibrillators (CRT-D) despite significant differences in size, longevity, and cost between these devices. The purpose of this study...

journal_title：Journal of cardiovascular electrophysiology

authors： Munir MB,Althouse AD,Rijal S,Shah MB,Abu Daya H,Adelstein E,Saba S

更新日期：2016-06-01 00:00:00

abstract：INTRODUCTION:We investigated the spread of the excitation wave over the atria following initiation in a given focus in an atrial model containing its overall geometry only, i.e., without atrial bundles. METHODS AND RESULTS:The propagation velocity of the excitation wave was taken to be uniform, and the wall thickness ...

journal_title：Journal of cardiovascular electrophysiology

authors： van Dam PM,van Oosterom A

更新日期：2003-10-01 00:00:00

abstract：INTRODUCTION:Despite innovations in nonthoracotomy defibrillation systems, thoracotomies are still required in some clinical settings and are utilized in many animal-based research protocols. The effect of a thoracotomy on defibrillation energy, however, has not been well characterized. METHODS AND RESULTS:Ten dogs in...

journal_title：Journal of cardiovascular electrophysiology

authors： Friedman PA,Stanton MS

更新日期：1997-01-01 00:00:00

abstract：INTRODUCTION:Conventional electrical therapies for heart failure (HF) encompass defibrillation and ventricular resynchronization for patients at high risk for lethal arrhythmias and/or with inhomogeneous ventricular contraction. Cardiac contractility modulation (CCM) by means of nonexcitatory electrical currents delive...

journal_title：Journal of cardiovascular electrophysiology

authors： Pappone C,Augello G,Rosanio S,Vicedomini G,Santinelli V,Romano M,Agricola E,Maggi F,Buchmayr G,Moretti G,Mika Y,Ben-Haim SA,Wolzt M,Stix G,Schmidinger H

更新日期：2004-04-01 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:In patients with permanent pacemakers, mode switching events often are interpreted as surrogate markers for atrial tachyarrhythmias. The aim of this study was to determine the accuracy of automatic mode switching algorithms in patients with permanent pacemakers for the diagnosis of atrial tachyarrhythmias....

journal_title：Journal of cardiovascular electrophysiology

authors： Passman RS,Weinberg KM,Freher M,Denes P,Schaechter A,Goldberger JJ,Kadish AH

更新日期：2004-07-01 00:00:00

abstract：INTRODUCTION:Studies suggest that entrainment response (ER) of reentrant tachycardia to overdrive pacing can be estimated using signals from sites other than the paced site. METHODS AND RESULTS:A formula for estimation of ER using remote sites against the difference between the postpacing interval (PPI) and tachycardi...

journal_title：Journal of cardiovascular electrophysiology

authors： Hammer PE,Brooks DH,Triedman JK

更新日期：2003-01-01 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: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：: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