The signal-averaged electrocardiogram: update on clinical applications.

abstract：:A 39-year-old woman with no structural heart disease and frequent episodes of sudden onset palpitations was referred for the electrophysiological study. During the study, a slightly irregular narrow QRS tachycardia with AV dissociation was repeatedly induced and spontaneously terminated. Apparently, irregular cycles a...

journal_title：Journal of cardiovascular electrophysiology

authors： Castillo Castillo J,Peñafiel Verdú P,Martínez Sánchez J,García Alberola A

更新日期：2013-03-01 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：BACKGROUND:Focal atrial tachycardias (FAT) originate from areas with poor cell-to-cell coupling. Due to cellular uncoupling extracellular potentials become fractionated. The degree of fragmentation may be used to identify the site of origin of FAT prior to catheter ablation. We studied electrical fragmentation in relat...

journal_title：Journal of cardiovascular electrophysiology

authors： De Groot NM,Schalij MJ

更新日期：2006-10-01 00:00:00

abstract：INTRODUCTION:A functional region of slow conduction located in the inferior right atrium has been postulated to be critical to the induction and maintenance of typical human atrial flutter. We reexamined the potential role of functional conduction delay in the annular isthmus between the tricuspid valve and the inferio...

journal_title：Journal of cardiovascular electrophysiology

authors： Kinder C,Kall J,Kopp D,Rubenstein D,Burke M,Wilber D

更新日期：1997-07-01 00:00:00

abstract：:This article reviews current evidence of non-antiarrhythmic agents for the prevention and maintenance of sinus rhythm in patients with atrial fibrillation. These nontraditional agents include angiotensin converting enzyme inhibitors, angiotensin receptor blockers, antiinflammatory agents, calcium channel blockers, and...

journal_title：Journal of cardiovascular electrophysiology

authors： Lally JA,Gnall EM,Seltzer J,Kowey PR

更新日期：2007-11-01 00:00:00

abstract：INTRODUCTION:Vasovagal reflex is the most common type of syncope but its etiology is not fully elucidated. Venous return and cardiac output are key in hemodynamic control. The aim of the study was to assess cardiovascular biomarkers and echocardiographic measures at rest and during hypovolemia in women with and without...

journal_title：Journal of cardiovascular electrophysiology

authors： Lindenberger M,Fedorowski A,Melander O,Gallo W,Engvall J,Skoog J

更新日期：2019-12-01 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:Defibrillation testing of the implantable cardioverter-defibrillator (ICD) is considered a standard and required practice at the time of implantation. How much testing, if any in some cases, should be performed, however, remains unknown. METHODS AND RESULTS:Included in this retrospective analysis were 835...

journal_title：Journal of cardiovascular electrophysiology

authors： Pires LA,Johnson KM

更新日期：2006-02-01 00:00:00

abstract：:Atrial fibrillation results in several structural and functional changes in the heart that lead to worsening ventricular function. Although restoration of sinus rhythm is the ideal goal, it is not always feasible. Pharmacologic therapy is associated with adverse effects and is not always effective. We have reviewed th...

journal_title：Journal of cardiovascular electrophysiology

authors： Narasimhan C,Blanck Z,Akhtar M

更新日期：1998-08-01 00:00:00

abstract：INTRODUCTION:Several studies have shown that the fast pathway is more responsive to adenosine than the slow pathway in patients with AV nodal reentrant tachycardia. Little information is available regarding the effect of adenosine on anterograde and retrograde fast pathway conduction. METHODS AND RESULTS:The effects o...

journal_title：Journal of cardiovascular electrophysiology

authors： Souza JJ,Zivin A,Flemming M,Pelosi F,Oral H,Knight BP,Goyal R,Man KC,Strickberger SA,Morady F

更新日期：1998-08-01 00:00:00

abstract：INTRODUCTION:The apamin-sensitive small-conductance calcium-activated potassium current (IKAS ) is increased in heart failure. It is unknown if myocardial infarction (MI) is also associated with an increase of IKAS . METHODS AND RESULTS:We performed Langendorff perfusion and optical mapping in 6 normal hearts and 10 h...

journal_title：Journal of cardiovascular electrophysiology

authors： Lee YS,Chang PC,Hsueh CH,Maruyama M,Park HW,Rhee KS,Hsieh YC,Shen C,Weiss JN,Chen Z,Lin SF,Chen PS

更新日期：2013-10-01 00:00:00

abstract：INTRODUCTION:Patients with nonischemic cardiomyopathy (NICM) and ventricular tachycardia (VT) usually have basal-lateral scar in the left ventricle (LV). We sought to determine electrocardiogram (ECG) characteristics that may help identify NICM patients with basal-lateral scar and VT. METHODS AND RESULTS:Phase I, stud...

journal_title：Journal of cardiovascular electrophysiology

authors： Tzou WS,Zado ES,Lin D,Callans DJ,Dixit S,Cooper JM,Bala R,Garcia F,Hutchinson MD,Riley MP,Deo R,Gerstenfeld EP,Marchlinski FE

更新日期：2011-12-01 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:Biventricular pacing improves functional status in the majority of patients with drug-refractory heart failure, dilated cardiomyopathy, and interventricular conduction delay. The aim of this study was to analyze the baseline clinical and functional data of a cohort of patients implanted with a biventricula...

journal_title：Journal of cardiovascular electrophysiology

authors： Lunati M,Paolucci M,Oliva F,Frigerio M,Magenta G,Cattafi G,Vecchi R,Vicini I,Cavaglià S

更新日期：2002-01-01 00:00:00

abstract：INTRODUCTION:Amiodarone is a potent antiarrhythmic agent used in the management of both atrial and ventricular arrhythmias. In addition to its beta-blocking properties, amiodarone is known to block the sodium, potassium, and calcium channels in the heart. Its complex electropharmacology notwithstanding, the reasons for...

journal_title：Journal of cardiovascular electrophysiology

authors： Sicouri S,Moro S,Litovsky S,Elizari MV,Antzelevitch C

更新日期：1997-11-01 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：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：INTRODUCTION:Cardiac implantable electronic device (CIED) infections are potentially preventable complications associated with high morbidity, mortality, and cost. A recently developed bio-absorbable antibacterial envelope (TYRX™-A) might prevent CIED infections in high-risk subjects. However, data regarding safety and...

journal_title：Journal of cardiovascular electrophysiology

authors： Kolek MJ,Patel NJ,Clair WK,Whalen SP,Rottman JN,Kanagasundram A,Shen ST,Saavedra PJ,Estrada JC,Abraham RL,Ellis CR

更新日期：2015-10-01 00:00:00

abstract：:Vagus nerve activity can change heart rate substantially within one cardiac cycle, and the chronotropic effects decay almost completely within one cardiac cycle after cessation of vagal activity. The ability of the vagus nerves to regulate heart rate beat by beat can be explained in large part by the speed at which th...

journal_title：Journal of cardiovascular electrophysiology

authors： Levy MN,Yang T,Wallick DW

更新日期：1993-04-01 00:00:00

abstract：INTRODUCTION:ATP-sensitive K+ channels (K(ATP)) are expressed abundantly in cardiovascular tissues. Blocking this channel in experimental models of ischemia can reduce arrhythmias. We investigated the acute effects of amiodarone on the activity of cardiac sarcolemmal K(ATP) channels and their sensitivity to ATP. METHO...

journal_title：Journal of cardiovascular electrophysiology

authors： Holmes DS,Sun ZQ,Porter LM,Bernstein NE,Chinitz LA,Artman M,Coetzee WA

更新日期：2000-10-01 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：BACKGROUND:Multiple definitions of reverse ventricular remodeling (RVR) employing various changes in left ventricular end-systolic (LVESV) or diastolic volumes (LVEDVs) or left ventricular ejection fraction (LVEF) have been used in determining cardiac resynchronization therapy (CRT) response, making comparability acros...

journal_title：Journal of cardiovascular electrophysiology

authors： Rickard J,Baranowski B,Wilson Tang WH,Grimm RA,Niebauer M,Cantillion D,Wilkoff BL,Varma N

更新日期：2017-04-01 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：INTRODUCTION:Atrial fibrillation (AF) may occasionally affect athletes by impairing their ability to compete, and leading to noneligibility at prequalification screening. The impact of catheter ablation (CA) in restoring full competitive activity of athletes affected by AF is not known. The aim of our study was to inve...

journal_title：Journal of cardiovascular electrophysiology

authors： Furlanello F,Lupo P,Pittalis M,Foresti S,Vitali-Serdoz L,Francia P,De Ambroggi G,Ferrero P,Nardi S,Inama G,De Ambroggi L,Cappato R

更新日期：2008-05-01 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:Cardiac resynchronization therapy implants entail significant radiation exposure for patients and physicians. A novel 3D electromagnetic cardiovascular navigation system (MediGuide™) was designed to superimpose the real-time location of sensors embedded in delivery tools on prerecorded coronary sinus (CS) ...

journal_title：Journal of cardiovascular electrophysiology

authors： Valderrabano M,Greenberg S,Razavi H,More R,Ryu K,Heist EK

更新日期：2014-01-01 00:00:00

abstract：INTRODUCTION:Catheter ablation of atrial fibrillation (AF) has been recently shown to have an impact on the outcome of patients with heart failure and reduced LV ejection fraction (LVEF). We aimed to assess patients with reduced LVEF referred to catheter ablation of AF, and the efficacy and safety of this procedure com...

journal_title：Journal of cardiovascular electrophysiology

authors： Providência R,de Asmundis C,Chun J,Chierchia G,Defaye P,Anselme F,Creta A,Lambiase PD,Schmidt B,Chen S,Hunter RJ,Combes S,Honarbakhsh S,Combes N,Sousa MJ,Jebberi Z,Albenque JP,Boveda S

更新日期：2019-08-01 00:00:00

abstract：:Cardiac resynchronization therapy (CRT) is associated with improvement in the quality of life, hospitalization rates, and mortality in patients with left ventricular dysfunction and evidence of the right ventricle-left ventricle (RV-LV) desynchrony. Implant failure rates and patient outcomes have improved with the adv...

journal_title：Journal of cardiovascular electrophysiology

authors： Sinno MC,Carrigan T,Hays JC

更新日期：2020-08-01 00:00:00

abstract：INTRODUCTION:A major drawback of therapy with an implantable defibrillator is the nonspecificity of detection. Theoretically, adding atrial sensing information to a decision algorithm could improve specificity of detection. METHODS AND RESULTS:This open-label nonrandomized study compares the detection algorithm of the...

journal_title：Journal of cardiovascular electrophysiology

authors： Kühlkamp V,Dörnberger V,Mewis C,Suchalla R,Bosch RF,Seipel L

更新日期：1999-07-01 00:00:00

abstract：INTRODUCTION:Deaths secondary to low-energy impacts to the precordium in young individuals (commotio cordis) have been reported with increasing frequency. In a swine model, baseball impacts induce ventricular fibrillation when directed at the center of the left ventricle during the vulnerable portion of repolarization ...

journal_title：Journal of cardiovascular electrophysiology

authors： Garan AR,Maron BJ,Wang PJ,Estes NA 3rd,Link MS

更新日期：2005-04-01 00:00:00