Dizziness during atrial antitachycardia pacing: What is the cause.

abstract：:Ablation procedures for atrial fibrillation have become an established and increasingly used option for managing patients with symptomatic arrhythmia. The anatomic structures relevant to the pathogenesis of atrial fibrillation and ablation procedures are varied and include the pulmonary veins, other thoracic veins, th...

journal_title：Journal of cardiovascular electrophysiology

authors： Macedo PG,Kapa S,Mears JA,Fratianni A,Asirvatham SJ

更新日期：2010-07-01 00:00:00

abstract：INTRODUCTION:The degree of organization in ventricular fibrillation (VF) is not known. As an objective measurement of spatial order, spatial correlation functions and their characteristic lengths were estimated from epicardial electrograms of pigs in VF. METHODS AND RESULTS:VF was induced by premature stimulation in f...

journal_title：Journal of cardiovascular electrophysiology

authors： Bayly PV,Johnson EE,Wolf PD,Greenside HS,Smith WM,Ideker RE

更新日期：1993-10-01 00:00:00

abstract：INTRODUCTION:We observed a change in the atrial activation sequence during radiofrequency (RF) energy application in patients undergoing left accessory pathway (AP) ablation. This occurred without damage to the AP and in the absence of a second AP or alternative arrhythmia mechanism. We hypothesized that block in a lef...

journal_title：Journal of cardiovascular electrophysiology

authors： Luria DM,Nemec J,Etheridge SP,Compton SJ,Klein RC,Chugh SS,Munger TM,Shen WK,Packer DL,Jahangir A,Rea RF,Hammill SC,Friedman PA

更新日期：2001-07-01 00:00:00

abstract：INTRODUCTION:An early afterdepolarization (EAD)-induced triggered beat is thought to precipitate torsade de pointes (TdP) in the long QT syndrome (LQTS). Previous studies demonstrated the development of EAD activity and dispersion of repolarization under LQT2 (reduced I(Kr)) and LQT3 (augmented late I(Na)), but not LQT...

journal_title：Journal of cardiovascular electrophysiology

authors： Burashnikov A,Antzelevitch C

更新日期：2000-04-01 00:00:00

abstract：INTRODUCTION:We present a novel contact fluorescence imaging (CFI) approach to monitor transmembrane potentials in monolayers of cultured neonatal rat ventricular cells. We apply CFI to demonstrate, for the first time, long-term recordings as well as electrical induction and termination of reentrant activity in this in...

journal_title：Journal of cardiovascular electrophysiology

authors： Entcheva E,Lu SN,Troppman RH,Sharma V,Tung L

更新日期：2000-06-01 00:00:00

abstract：:Despite preserved left ventricular function, exercise capacity is often impaired after cardiac transplantation due to autonomic denervation of the donor's sinus node. We present our experience with atrio-atrial resynchronization in 2 pediatric heart transplant recipients. Both were highly active, suffered from chronot...

journal_title：Journal of cardiovascular electrophysiology

authors： Cadrin-Tourigny J,Fournier A,Khairy P,Vobecky SJ

更新日期：2010-05-01 00:00:00

abstract：INTRODUCTION:Idiopathic ventricular tachycardia (VT) originating in or close to the anterior fascicle of the left bundle is rare. A patient with no structural heart disease and VT with a right bundle branch block configuration and right-axis deviation underwent an electrophysiologic examination. METHODS AND RESULTS:Bo...

journal_title：Journal of cardiovascular electrophysiology

authors： Rodriguez LM,Smeets JL,Timmermans C,Trappe HJ,Wellens HJ

更新日期：1996-12-01 00:00:00

abstract：BACKGROUND:The vein of Marshall (VOM), which exists along the left lateral isthmus (LLI), constitutes a muscular connection between the coronary sinus (CS) and the left atrium (LA). We hypothesized that anatomical variation of the VOM affects the bidirectional block of LLI and the clinical outcome in patients with nonp...

journal_title：Journal of cardiovascular electrophysiology

authors： Choi JI,Pak HN,Park JH,Choi EJ,Kim SK,Kwak JJ,Jang JK,Hwang C,Kim YH

更新日期：2009-06-01 00:00:00

abstract：INTRODUCTION:Cryoballoon ablation (CBA) and radiofrequency ablation (RFA) are the preferred modalities for catheter ablation of atrial fibrillation (AF). Technological advances have improved procedural outcomes, warranting an updated comparison. We sought to evaluate the efficacy and safety of CBA-2nd generation (CBA-2...

journal_title：Journal of cardiovascular electrophysiology

authors： Ravi V,Poudyal A,Pulipati P,Larsen T,Krishnan K,Trohman RG,Sharma PS,Huang HD

更新日期：2020-10-01 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:Rapid PV activity is critical in initiating and maintaining AF. The underlying substrate responsible for this remains uncertain. We sought to identify if patients with paroxysmal (PAF) and persistent atrial fibrillation (PeAF) have an abnormal substrate within the pulmonary veins (PVs). METHODS AND RESULT...

journal_title：Journal of cardiovascular electrophysiology

authors： Teh AW,Kistler PM,Lee G,Medi C,Heck PM,Spence S,Morton JB,Sanders P,Kalman JM

更新日期：2011-10-01 00:00:00

abstract：BACKGROUND:Individual risk factors of intraprocedural cardiac injury (cardiac perforation and tamponade) during implantable cardioverter defibrillator (ICD) placement have been documented. However, the prognostic impact of their coexistence has not been explored. OBJECTIVE:To develop a risk score model to identify pat...

journal_title：Journal of cardiovascular electrophysiology

authors： Padala SK,Gunda S,Li S,Sharma PS,Koneru JN,Varosy PD,Ellenbogen KA

更新日期：2019-02-01 00:00:00

abstract：INTRODUCTION:Focal ventricular arrhythmias (VAs) have been reported to arise from the posterior papillary muscle in the left ventricle (LV). We report a distinct subgroup of idiopathic VAs arising from the anterior papillary muscle (APM) in the LV. METHODS AND RESULTS:We studied 432 consecutive patients undergoing cat...

journal_title：Journal of cardiovascular electrophysiology

authors： Yamada T,McElderry HT,Okada T,Murakami Y,Doppalapudi H,Yoshida N,Allred JD,Murohara T,Kay GN

更新日期：2009-08-01 00:00:00

abstract：INTRODUCTION:To evaluate short-term efficacy and incidence of ablation-induced endoscopically detected esophageal injury in patients undergoing high-power, short-duration (HPSD) pulmonary vein isolation using a novel irrigated radiofrequency ablation catheter and ablation generator setup. METHODS AND RESULTS:Atrial fi...

journal_title：Journal of cardiovascular electrophysiology

authors： Piringer R,Deneke T,Foldyna B,Sonne K,Nentwich K,Ene E,Barth S,Lüsebrink U,Berkovitz A,Halbfass P

更新日期：2021-01-13 00:00:00

abstract：INTRODUCTION:Frequency-dependent electrophysiologic actions of oral quinidine and oral sotalol may be clinically important, but these properties and their modulation by beta-adrenergic sympathetic stimulation have not been determined. METHODS AND RESULTS:The frequency-dependent effects of oral quinidine (n = 17) and o...

journal_title：Journal of cardiovascular electrophysiology

authors： Sager PT,Behboodikhah M

更新日期：1996-02-01 00:00:00

abstract：BACKGROUND:Chronotropic incompetence is common among patients with advanced heart failure (HF), thus atrial pacing (AP) is frequently utilized in this population. The hemodynamic effects of AP during cardiac resynchronization therapy (CRT) have not been well studied. OBJECTIVE:The purpose of this study was to compare ...

journal_title：Journal of cardiovascular electrophysiology

authors： Gold MR,Niazi I,Giudici M,Leman RB,Sturdivant JL,Kim MH,Waggoner AD,Ding J,Arcot-Krishnamurthy S,Daum D,Yu Y

更新日期：2009-08-01 00:00:00

abstract：INTRODUCTION:Although balloon-based techniques, such as the laser balloon (LB) ablation have simplified pulmonary vein isolation (PVI), procedural fluoroscopy usage remains higher in comparison to radiofrequency PVI approaches due to limited 3-dimensional mapping system integration. METHODS:In this prospective study, ...

journal_title：Journal of cardiovascular electrophysiology

authors： Huang HD,Rodriguez JM,Serafini NJ,Macias C,Winterfield J,Sharma PS,Larsen T,Krishnan K,Trohman RG

更新日期：2020-07-01 00:00:00

abstract：INTRODUCTION:Complex fractionated atrial electrograms (CFAE) may identify critical sites for perpetuation of atrial fibrillation (AF) and provide useful targets for ablation. Current assessment of CFAE is subjective; automated detection algorithms may improve reproducibility, but their utility in guiding ablation has n...

journal_title：Journal of cardiovascular electrophysiology

authors： Porter M,Spear W,Akar JG,Helms R,Brysiewicz N,Santucci P,Wilber DJ

更新日期：2008-06-01 00:00:00

abstract：INTRODUCTION:While some posteroseptal and left posterior accessory pathways (APs) can be ablated on the tricuspid annulus or within the coronary venous system, others require a left-sided approach. "Fragmented" or double potentials are frequently recorded in the coronary sinus (CS), with a smaller, blunt component from...

journal_title：Journal of cardiovascular electrophysiology

authors： Pap R,Traykov VB,Makai A,Bencsik G,Forster T,Sághy L

更新日期：2008-07-01 00:00:00

abstract：INTRODUCTION:Epicardial catheter ablation is increasingly used to treat arrhythmias with an epicardial component. Nevertheless, percutaneous epicardial access remains associated with a significant risk of major complications. Developing a technology capable of confirming proper placement within the pericardial space co...

journal_title：Journal of cardiovascular electrophysiology

authors： Burkland DA,Ganapathy AV,John M,Greet BD,Saeed M,Rasekh A,Razavi M

更新日期：2017-12-01 00:00:00

abstract：INTRODUCTION:The autonomic nervous system richly innervates the peri-AV nodal region and may be activated during radiofrequency (RF) ablation for AV nodal reentrant tachycardia, resulting in the generation of junctional tachycardia. The purpose of this prospective study was to determine the role of the autonomic nervou...

journal_title：Journal of cardiovascular electrophysiology

authors： Chen MC,Guo GB

更新日期：1999-01-01 00:00:00

abstract：INTRODUCTION:Ultrasound guided axillary vein access (UGAVA) is an emerging approach for cardiac implantable electronic device (CIED) implantation not widely utilized. METHODS AND RESULTS:This is a retrospective, age and sex-matched cohort study of CIED implantation from January 2017 to July 2019 comparing UGAVA before...

journal_title：Journal of cardiovascular electrophysiology

authors： Chandler JK,Apte N,Ranka S,Mohammed M,Noheria A,Emert M,Pimentel R,Dendi R,Reddy M,Sheldon SH

更新日期：2020-12-18 00:00:00

abstract：INTRODUCTION:Cerebral thromboembolic event (CTE) is a possible complication of pulmonary vein antrum isolation (PVAI). The objective of this study was to report long-term functional and neurocognitive recovery in patients who had a CTE during or within 48 hours of catheter ablation. METHODS AND RESULTS:We screened 3,0...

journal_title：Journal of cardiovascular electrophysiology

authors： Patel D,Bailey SM,Furlan AJ,Ching M,Zachaib J,Di Biase L,Mohanty P,Horton RP,Burkhardt JD,Sanchez JE,Zagrodzky JD,Gallinghouse GJ,Schweikert R,Saliba W,Natale A

更新日期：2010-04-01 00:00:00

abstract：INTRODUCTION:Pulmonary vein isolation (PVI) is the cornerstone ablation strategy for treatment of atrial fibrillation (AF). Ablation outside the PVs is sometimes needed particularly in persistent or longstanding AF. This study reported left atrial appendage isolation (LAAI) using cryoballoon (CB) focusing on technical ...

journal_title：Journal of cardiovascular electrophysiology

authors： Chen S,Schmidt B,Bordignon S,Perrotta L,Bologna F,Nagase T,Chun KRJ

更新日期：2019-02-01 00:00:00

abstract：INTRODUCTION:The slope of the power spectrum in heart rate variability (HRV) reflects the fractal or scaling behavior in HR dynamics and recently was confirmed as an independent predictor of postmyocardial infarction survival. Whether or not the new measurement in HRV foresees the functional evolution in patients with ...

journal_title：Journal of cardiovascular electrophysiology

authors： Lin LY,Lin JL,Du CC,Lai LP,Tseng YZ,Huang SK

更新日期：2001-01-01 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：: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:Radiofrequency (RF) lesion metrics are influenced by underlying parameters like RF power, duration, and contact force (CF), and utilization of lesion metric indices (ablation index [AI]) is a proposed strategy to predict lesion quality. The aim of this study was to analyze the influence of underlying param...

journal_title：Journal of cardiovascular electrophysiology

authors： Bourier F,Duchateau J,Vlachos K,Lam A,Martin CA,Takigawa M,Kitamura T,Frontera A,Cheniti G,Pambrun T,Klotz N,Denis A,Derval N,Cochet H,Sacher F,Hocini M,Haïssaguerre M,Jais P

更新日期：2018-11-01 00:00:00

abstract：:Catheter ablation for ventricular tachycardia (VT) is becoming an essential component of the successful management of patients with structural heart disease and refractory ventricular arrhythmias. Despite detailed mapping and ablation from the endocardium, nearly a third of VT circuits remain inaccessible. Pericardial...

journal_title：Journal of cardiovascular electrophysiology

authors： Tedrow U,Stevenson WG

更新日期：2009-06-01 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