Bradycardiomyopathy: the case for a causative relationship between severe sinus bradycardia and heart failure.

abstract：INTRODUCTION:The aim of this study was to determine the atrial defibrillation threshold (ADFT) of a first shock across the standard right atrium (RA) to distal coronary sinus (dCS) configuration followed by a second shock along the atrial septum with a standard sequential waveform (the second shock leading edge equaled...

journal_title：Journal of cardiovascular electrophysiology

authors： Zheng X,Benser ME,Walcott GP,Smith WM,Ideker RE

更新日期：2002-09-01 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：:The Res-Q Arrhythmia Control Device (Intermedics Inc.) is one of the latest entries into the growing implantable cardioverter defibrillator (ICD) market. Dysrhythmias are classified according to their zone of detection, with a bradycardia zone, up to 3 tachycardia zones, and a fibrillation zone. Detection criterion, t...

journal_title：Journal of cardiovascular electrophysiology

authors： Miller RE,Wilkoff BL

更新日期：1995-02-01 00:00:00

abstract：INTRODUCTION:Open irrigation during radiofrequency (RF) application allows a higher power delivery in the setting of temperature-controlled ablation, without causing blood clots. This study sought to evaluate the clinical value of the additional 6 supplementary channels at the proximal catheter tip compared to a standa...

journal_title：Journal of cardiovascular electrophysiology

authors： Knecht S,Sacher F,Forclaz A,Verbeet T,Hocini M,Wright M,Tran-Ngoc E,Morissens M,Peperstraete B,Derval N,Jaïs P,Linton N,Decoodt P,Haïssaguerre M,Castro-Rodriguez J

更新日期：2011-05-01 00:00:00

abstract：INTRODUCTION:The aim of this study was to evaluate the efficacy and the impact on quality of life of a new ablative approach to the right atrium in patients with atrial fibrillation (AF). METHODS AND RESULTS:Seventy-four symptomatic patients with paroxysmal (n = 49) or permanent (n = 25) refractory AF underwent radiof...

journal_title：Journal of cardiovascular electrophysiology

authors： Calò L,Lamberti F,Loricchio ML,Castro A,Shpun S,Boggi A,Pandozi C,Santini M

更新日期：2004-01-01 00:00:00

abstract：UNLABELLED:Lesion dimension of cryoablation. BACKGROUND:Transvenous catheter cryoablation is a novel technique for treating cardiac arrhythmias. However, the relative importance of temporal application parameters on lesion dimension and clinical efficacy has not been studied. METHODS AND RESULTS:We investigated the e...

journal_title：Journal of cardiovascular electrophysiology

authors： Tse HF,Ripley KL,Lee KL,Siu CW,Van Vleet JF,Pelkey WL,Lau CP

更新日期：2005-02-01 00:00:00

abstract：INTRODUCTION:The upper limit of vulnerability (ULV) correlates with the defibrillation threshold (DFT). The ULV can be determined with a single episode of ventricular fibrillation and is more reproducible than the single-point DFT. The critical-point hypothesis of defibrillation predicts that the relation between the U...

journal_title：Journal of cardiovascular electrophysiology

authors： Swerdlow CD,Kass RM,O'Connor ME,Chen PS

更新日期：1998-04-01 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: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：INTRODUCTION:Sinus node dysfunction (SND) commonly manifests with atrial arrhythmias alternating with sinus pauses and sinus bradycardia. The underlying process is thought to be because of atrial fibrosis. We assessed the value of atrial fibrosis, quantified using late gadolinium enhanced-MRI (LGE-MRI), in predicting s...

journal_title：Journal of cardiovascular electrophysiology

authors： Akoum N,McGann C,Vergara G,Badger T,Ranjan R,Mahnkopf C,Kholmovski E,Macleod R,Marrouche N

更新日期：2012-01-01 00:00:00

abstract：INTRODUCTION:Cerebral embolism and stroke are feared complications of left atrial catheter ablation such as pulmonary vein (PV) ablation. In order to assess the thrombogenicity of left atrial catheter ablation, knowledge of both clinically evident as well as silent cerebral embolism is important. The aim of the current...

journal_title：Journal of cardiovascular electrophysiology

authors： Lickfett L,Hackenbroch M,Lewalter T,Selbach S,Schwab JO,Yang A,Balta O,Schrickel J,Bitzen A,Lüderitz B,Sommer T

更新日期：2006-01-01 00:00:00

abstract：BACKGROUND:Low conduction velocity (CV) in the area showing low electrogram amplitude (EA) is characteristic of reentry circuit of atypical atrial flutter (AFL). The quantitative relationship between CV and EA remains unclear. We characterized AFL reentry circuit in the right atrium (RA), focusing on the relationship b...

journal_title：Journal of cardiovascular electrophysiology

authors： Itoh T,Kimura M,Sasaki S,Owada S,Horiuchi D,Sasaki K,Ishida Y,Takahiko K,Okumura K

更新日期：2014-04-01 00:00:00

abstract：BACKGROUND:Ablation of atrial tachycardia (AT) that occurs after cardiac surgery or prior ablation often requires complex lesion sets. In combination with the pre-existing atrial scar, these lesion sets may result in inadvertent intra-atrial conduction block. This study reports the phenomenon of incidental isolation of...

journal_title：Journal of cardiovascular electrophysiology

authors： Markowitz SM,Choi DY,Daian F,Liu CF,Cheung JW,Thomas G,Ip JE,Lerman BB

更新日期：2019-10-01 00:00:00

abstract：INTRODUCTION:The pulmonary veins (PVs) are a dominant source of triggers initiating atrial fibrillation (AF). While recent evidence implicates these structures in the maintenance of paroxysmal AF, their role in permanent AF is not known. The current study aims to compare the contribution of PV activity to the maintenan...

journal_title：Journal of cardiovascular electrophysiology

authors： Sanders P,Nalliah CJ,Dubois R,Takahashi Y,Hocini M,Rotter M,Rostock T,Sacher F,Hsu LF,Jönsson A,O'Neill MD,Jaïs P,Haïssaguerre M

更新日期：2006-09-01 00:00:00

abstract：INTRODUCTION:Disturbance of sympathetic and vagal nervous system participates in the pathogenesis of hypertension and atrial fibrillation (AF). Renal denervation (RDN) can modulate autonomic nervous activity and reduce blood pressure (BP) in hypertensive patients. We aimed to evaluate the effect of RDN combined with pu...

journal_title：Journal of cardiovascular electrophysiology

authors： Chen S,Kiuchi MG,Yin Y,Liu S,Schratter A,Acou WJ,Meyer C,Pürerfellner H,Chun KRJ,Schmidt B

更新日期：2019-05-01 00:00:00

abstract：:Non-fluoroscopy AV ablation and pacemaker implantation. Fluoroscopic guidance is the standard tool used for transvenous pacemaker implantations and for electrophysiological and ablation procedures. It implies X-ray exposure, occasionally with high dose of radiation for the patient and operator. We describe the case of...

journal_title：Journal of cardiovascular electrophysiology

authors： Ruiz-Granell R,Morell-Cabedo S,Ferrero-De-Loma A,García-Civera R

更新日期：2005-07-01 00:00:00

abstract：BACKGROUND:Atrial tachycardias (ATs) are commonly observed following catheter ablation of atrial fibrillation (AF). The aim of this study was to identify ECG characteristics that differentiate focal from macroreentrant ATs after circumferential pulmonary vein isolation (CPVI). METHODS AND RESULTS:One hundred and twent...

journal_title：Journal of cardiovascular electrophysiology

authors： Chang SL,Tsao HM,Lin YJ,Lo LW,Hu YF,Tuan TC,Tsai WC,Chang CJ,Suenari K,Huang SY,Tai CT,Li CH,Chao TF,Wu TJ,Chen SA

更新日期：2011-07-01 00:00:00

abstract：INTRODUCTION:Catheter ablation for paroxysmal AF (PAF) is limited by an unacceptable recurrence rate, mainly due to pulmonary vein (PV) reconnection. Strategies to minimize reconnection include adenosine infusion and also a waiting period of 30 minutes after PV isolation. The aim of the present study was to assess whet...

journal_title：Journal of cardiovascular electrophysiology

authors： Jiang CY,Jiang RH,Matsuo S,Liu Q,Fan YQ,Zhang ZW,Fu GS

更新日期：2009-12-01 00:00:00

abstract：BACKGROUND:Centers for Medicare and Medicaid Services has mandated the use of shared decision-making (SDM) for implantable cardioverter-defibrillator (ICD) implantation. SDM tools help facilitate quality SDM by presenting patients with balanced evidence-based facts related to risk and benefits. Perceptions of ICD impla...

journal_title：Journal of cardiovascular electrophysiology

authors： Ali-Ahmed F,Matlock D,Zeitler EP,Thomas KL,Haines DE,Al-Khatib SM

更新日期：2019-11-01 00:00:00

abstract：BACKGROUND:Contact-force (CF) sensing catheters are increasingly used in clinical electrophysiological practice due to their efficacy and safety profile. As data about the accuracy of this technology are scarce, we sought to quantify accuracy based on in vitro experiments. METHODS AND RESULTS:A custom-made force senso...

journal_title：Journal of cardiovascular electrophysiology

authors： Bourier F,Hessling G,Ammar-Busch S,Kottmaier M,Buiatti A,Grebmer C,Telishevska M,Semmler V,Lennerz C,Schneider C,Kolb C,Deisenhofer I,Reents T

更新日期：2016-03-01 00:00:00

abstract：INTRODUCTION:Ablation electrode-tissue contact has been shown to be an important determinant of lesion size and safety during nonirrigated ablation but little data are available during irrigated ablation. We aimed to determine the importance of contact force during irrigated-tip ablation. METHODS AND RESULTS:Freshly e...

journal_title：Journal of cardiovascular electrophysiology

authors： Thiagalingam A,D'Avila A,Foley L,Guerrero JL,Lambert H,Leo G,Ruskin JN,Reddy VY

更新日期：2010-07-01 00:00:00

abstract：BACKGROUND:Implantable cardioverter defibrillators (ICDs) reduce all-cause mortality among cardiomyopathy patients. Whether or not antitachycardia pacing (ATP) is equally effective in ischemic (ICM) and nonischemic (NICM) cardiomyopathy patients remains poorly understood. We describe the distribution of monomorphic (MV...

journal_title：Journal of cardiovascular electrophysiology

authors： Cheng A,Joung B,Brown ML,Koehler J,Lexcen DR,Sanders P,Ellenbogen KA

更新日期：2020-10-01 00:00:00

abstract：INTRODUCTION:This study sought to determine if the acute procedural outcome of ventricular tachycardia (VT) substrate ablation is associated with a mortality benefit in patients with implantable cardioverter-defibrillators (ICD). METHODS AND RESULTS:A total of 195 ICD recipients (65 ± 11years) with ischemic or nonisch...

journal_title：Journal of cardiovascular electrophysiology

authors： Komatsu Y,Maury P,Sacher F,Khairy P,Daly M,Lim HS,Zellerhoff S,Jesel L,Rollin A,Duparc A,Mondoly P,Aurillac-Lavignolle V,Shah A,Denis A,Cochet H,Derval N,Hocini M,Haïssaguerre M,Jaïs P

更新日期：2015-11-01 00:00:00

abstract：INTRODUCTION:Angiotensin-converting enzyme (ACE) inhibitors and angiotensin II-receptor blockers (ARBs) are prototypes of "upstream" therapy for the management of atrial fibrillation (AF). Ectopic activity arising from the PV sleeves plays a prominent role in the development of AF. METHODS:Transmembrane action potenti...

journal_title：Journal of cardiovascular electrophysiology

authors： Sicouri S,Cordeiro JM,Talarico M,Antzelevitch C

更新日期：2011-06-01 00:00:00

abstract：INTRODUCTION:Increased dispersion of ventricular repolarization is observed in cardiac hypertrophy and is associated with sudden cardiac death. At present, there is little information about the effects of cardiac hemodynamics and antiarrhythmic drugs on dispersion of repolarization in disease states. We compared the ef...

journal_title：Journal of cardiovascular electrophysiology

authors： Gillis AM,Mathison HJ,Kulisz E,Lester WM

更新日期：1998-09-01 00:00:00

abstract：INTRODUCTION:Quinidine has been evaluated in patients with a short QT-1 syndrome caused by an IKr gain-of-function mutation of HERG. Recently, in vitro data with disopyramide showed an even stronger effect on the N588K mutant current. The aim of the present study was to test the in vivo effects of disopyramide in patie...

journal_title：Journal of cardiovascular electrophysiology

authors： Schimpf R,Veltmann C,Giustetto C,Gaita F,Borggrefe M,Wolpert C

更新日期：2007-11-01 00:00:00

abstract：:Patients with congenital heart disease have unique pacing challenges and often require epicardial systems. High pacing threshold is one of the major factors that decrease these systems' durability. Sometimes surgical reintervention or lead replacement is difficult or prohibitive in these patients due to repeated surge...

journal_title：Journal of cardiovascular electrophysiology

authors： Von Wald L,Brucker R,Salerno S,Ries A,Roukoz H

更新日期：2020-08-01 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: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：BACKGROUND:The relationship between postdefibrillation ventricular arrhythmias and shock strength is poorly understood in patients with implantable defibrillators. The purpose of this study was to characterize the relationship between postdefibrillation ventricular arrhythmias and shock strength. METHODS AND RESULTS:F...

journal_title：Journal of cardiovascular electrophysiology

authors： Zivin A,Souza J,Pelosi F,Flemming M,Knight BP,Goyal R,Morady F,Strickberger SA

更新日期：1999-03-01 00:00:00