Abstract:
INTRODUCTION:The stability of implantable cardiac defibrillation lead impedance subsequent to implantation has not been reported and may have important clinical implications. The objective was to characterize the incidence and degree of impedance changes occurring after implantation of defibrillation lead systems. METHODS AND RESULTS:The study cohort consisted of patients who received epicardial or nonthoracotomy lead systems. Defibrillation impedance was recorded at implantation, prior to hospital discharge (predischarge), and during follow-up. For each individual the magnitude of the impedance change relative to implantation was characterized. Among patients with an epicardial system, a significant decrease in impedance was observed at predischarge (mean 9.3 omega). The magnitude of the decrease was large in 39% and moderate in 31% of individuals. Subsequently, a gradual rise in mean impedance was apparent. At 18-21 months postimplantation, impedance was significantly increased relative to implantation (mean 6.8 omega). At this time, the magnitude of the increase was large in 46% and moderate in 23% of patients. Among patients with a nonthoracotomy lead system including a subcutaneous patch, a significant decrease in mean impedance was observed at predischarge (mean 3.5 omega). The magnitude of the decrease was large in 8% and moderate in 50% of individuals. Subsequently, a gradual rise in impedance was apparent. At 5-6 months, it was significantly increased relative to implantation (mean 2.3 omega). The magnitude of the increase was large in 10% and moderate in 33% of patients. Among the group of patients whose nonthoracotomy lead system did not include a subcutaneous patch, there was no significant change in mean impedance at predischarge relative to implantation. In subsequent intervals, a gradual rise was apparent. At 5-6 months, impedance was significantly increased relative to implantation (mean 4.3 omega). The magnitude of the increase was large in 16% and moderate in 47% of individuals. CONCLUSION:Significant changes in defibrillation lead impedance occur after implantation of epicardial and nonthoracotomy defibrillation lead systems. These data may serve as a standard for identifying the anticipated maximum change in lead impedance and thus may be useful as a tool for recognizing problems with defibrillation lead integrity.
journal_name
J Cardiovasc Electrophysioljournal_title
Journal of cardiovascular electrophysiologyauthors
Schwartzman D,Hull ML,Callans DJ,Gottlieb CD,Marchlinski FEdoi
10.1111/j.1540-8167.1996.tb00577.xsubject
Has Abstractpub_date
1996-08-01 00:00:00pages
697-703issue
8eissn
1045-3873issn
1540-8167journal_volume
7pub_type
杂志文章abstract:INTRODUCTION:Longer observational time and adenosine challenge have proven to be able to detect pulmonary vein (PV) reconnections. The aim of this study was to assess incidence of spontaneous and adenosine-induced PV reconnection after ablation with second-generation cryoballoon (CB-Adv). METHODS AND RESULTS:Fifty con...
journal_title:Journal of cardiovascular electrophysiology
pub_type: 杂志文章
doi:10.1111/jce.12421
更新日期:2014-08-01 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
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1111/jce.12000
更新日期:2012-12-01 00:00:00
abstract:INTRODUCTION:Data on long-term follow-up (LTFU) after interventional closure of the left atrial appendage (LAAC) in patients with nonvalvular atrial fibrillation (AF) are scarce. We sought to determine the outcome of patients after LAAC with the first generation device. METHODS AND RESULTS:The Cardioangiologisches Cen...
journal_title:Journal of cardiovascular electrophysiology
pub_type: 杂志文章
doi:10.1111/jce.12704
更新日期:2015-08-01 00:00:00
abstract:INTRODUCTION:Pulmonary vein potentials reflect depolarization of muscle fascicles within the myocardial sleeves that surround the pulmonary veins. The response of pulmonary vein potentials to premature stimulation has not been described. METHODS AND RESULTS:In 31 patients with paroxysmal atrial fibrillation referred f...
journal_title:Journal of cardiovascular electrophysiology
pub_type: 临床试验,杂志文章
doi:10.1046/j.1540-8167.2002.00033.x
更新日期:2002-01-01 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
pub_type: 杂志文章
doi:10.1111/j.1540-8167.1997.tb01029.x
更新日期:1997-12-01 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
pub_type: 杂志文章
doi:10.1111/jce.12886
更新日期:2016-03-01 00:00:00
abstract:INTRODUCTION:Isoproterenol is used to assess and facilitate AV nodal conduction, and thus potentiate the induction of supraventricular arrhythmias. It is commonly administered in increasing doses until a predetermined decrease in sinus cycle length, usually 20% to 30%, occurs. This regimen may result in undesirable sid...
journal_title:Journal of cardiovascular electrophysiology
pub_type: 杂志文章
doi:10.1111/j.1540-8167.1997.tb00845.x
更新日期:1997-08-01 00:00:00
abstract:INTRODUCTION:Following radiofrequency catheter ablation of AV nodal reentrant tachycardia (AVNRT), inappropriate sinus tachycardia may occur, possibly due to damage to autonomic cardiac nerve fibers. Furthermore, inducibility of AVNRT is often critically dependent on the autonomic balance. We investigated whether succe...
journal_title:Journal of cardiovascular electrophysiology
pub_type: 杂志文章
doi:10.1111/j.1540-8167.1998.tb00936.x
更新日期:1998-06-01 00:00:00
abstract::The promise of atomic (scanning) force microscopy (AFM) for cardiovascular research is enormous. The AFM images by using a sharp cantilever tip to sense the repulsive and attractive forces between the tip and the sample surface. The force of interaction is kept constant while raster scanning, resulting in images of th...
journal_title:Journal of cardiovascular electrophysiology
pub_type: 杂志文章,评审
doi:10.1111/j.1540-8167.1996.tb00572.x
更新日期:1996-07-01 00:00:00
abstract:BACKGROUND:Lifestyle and risk factor management may improve outcomes in patients with atrial fibrillation (AF). We aim to evaluate the prevalence of modifiable risk factors and how these factors impact clinical outcomes in patients with AF. METHODS AND RESULTS:Data on 17 898 AF cohort patients with AF enrolled between...
journal_title:Journal of cardiovascular electrophysiology
pub_type: 杂志文章,多中心研究
doi:10.1111/jce.14231
更新日期:2019-12-01 00:00:00
abstract:BACKGROUND:Historically, individuals diagnosed with an inherited arrhythmia or cardiomyopathy have been advised to avoid participating in competitive sports. Consequently, these individuals may be more susceptible to weight gain and obesity. METHODS:A retrospective longitudinal chart review was performed for a populat...
journal_title:Journal of cardiovascular electrophysiology
pub_type: 杂志文章
doi:10.1111/jce.13713
更新日期:2018-12-01 00:00:00
abstract:INTRODUCTION:Bipolar voltage criteria to delineate left atrial (LA) scar have been derived using point-by-point (PBP) contact electroanatomical mapping. It remains unclear how PBP-derived LA scar correlates with multielectrode fast automated mapping (ME-FAM) derived scar. We aimed to correlate scar and bipolar voltages...
journal_title:Journal of cardiovascular electrophysiology
pub_type: 杂志文章
doi:10.1111/jce.13151
更新日期:2017-03-01 00:00:00
abstract:INTRODUCTION:The right inferior pulmonary vein (RIPV) accounts as the most frequently reconnected vein after pulmonary vein isolation using second-generation cryoballoon ablation (CB-A). Our objective was to assess anatomic predictors of late RIPV reconnection based on preprocedural computed tomography scan. METHODS:P...
journal_title:Journal of cardiovascular electrophysiology
pub_type: 杂志文章
doi:10.1111/jce.14186
更新日期:2019-11-01 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
pub_type: 杂志文章
doi:10.1111/j.1540-8167.1998.tb00121.x
更新日期:1998-08-01 00:00:00
abstract:BACKGROUND:Transseptal puncture (TP) is a prerequisite for LA ablations. LA access can be gained by catheter probing in case of PFO (trans-PFO method) or puncture of the interatrial septum (IAS) using a transseptal needle. A 2nd access can again be gained via PFO, a 2nd TP or catheter probing of the previous puncture s...
journal_title:Journal of cardiovascular electrophysiology
pub_type: 杂志文章
doi:10.1111/jce.12356
更新日期:2014-05-01 00:00:00
abstract:INTRODUCTION:Manual, point-by-point electroanatomical mapping requires the operator to directly evaluate each point during map construction. Consequently, point collection can be a slow process. An automated 3D mapping system was developed with the goal of improving key mapping metrics, including map completion time an...
journal_title:Journal of cardiovascular electrophysiology
pub_type: 杂志文章
doi:10.1111/jce.13368
更新日期:2018-01-01 00:00:00
abstract:INTRODUCTION:The critical question for technological advancement of catheter ablation of atrial fibrillation (AF) is whether a creative new concept can combine and even improve the options of single-tip catheters with the simplicity of the use of balloon catheters. Herein are described the results from the first clinic...
journal_title:Journal of cardiovascular electrophysiology
pub_type: 杂志文章
doi:10.1111/jce.14172
更新日期:2019-11-01 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
pub_type: 杂志文章
doi:10.1111/j.1540-8167.2009.01693.x
更新日期:2010-07-01 00:00:00
abstract:INTRODUCTION:Two randomized trials (Multicenter Automatic Defibrillator Implantation Trial [MADIT] and Multicenter Unsustained Tachycardia Trial [MUSTT]) suggest that implantable cardioverter defibrillator (ICD) placement is associated with improved survival in patients with coronary artery disease, depressed left vent...
journal_title:Journal of cardiovascular electrophysiology
pub_type: 杂志文章
doi:10.1046/j.1540-8167.2002.00342.x
更新日期:2002-04-01 00:00:00
abstract::Due to expanding clinical indications and an aging society there has been an increase in the use of implantable pacemakers. At the same time, due to increased diagnostic yield over other imaging modalities and the absence of ionizing radiation, there has been a surge in demand for magnetic resonance imaging (MRI) asse...
journal_title:Journal of cardiovascular electrophysiology
pub_type: 杂志文章,评审
doi:10.1111/jce.12238
更新日期:2013-09-01 00:00:00
abstract:INTRODUCTION:The "critical point hypothesis" for induction of ventricular fibrillation has previously been extended to infer the coexistence of four critical points, and hence four simultaneous spiral reentries or a quatrefoil reentry, resulting from only one premature stimulus delivered to the same location as the pac...
journal_title:Journal of cardiovascular electrophysiology
pub_type: 杂志文章
doi:10.1111/j.1540-8167.1999.tb00715.x
更新日期:1999-04-01 00:00:00
abstract::This is a case of atrial tachycardia 2 years after pulmonary transplantation. After excluding right atrial involvement, tachycardia origin was located in a scar region medial to the anastomosis of the left inferior pulmonary donor vein. Tachycardia mechanism was microreentry. Noninvasive electrocardiographic mapping p...
journal_title:Journal of cardiovascular electrophysiology
pub_type: 杂志文章
doi:10.1111/j.1540-8167.2011.02250.x
更新日期:2012-05-01 00:00:00
abstract:INTRODUCTION:This study was designed to analyze dynamic changes in autonomic tone preceding the onset of sustained atrial arrhythmias in patients with focal atrial fibrillation (AF) to determine why patients with frequent discharge from the arrhythmogenic foci develop sustained AF. METHODS AND RESULTS:Holter tapes fro...
journal_title:Journal of cardiovascular electrophysiology
pub_type: 杂志文章
doi:10.1046/j.1540-8167.2001.00285.x
更新日期:2001-03-01 00:00:00
abstract::Atrial flutter is due to large single reentrant loops, typically oriented around the caval veins and a line of functional conduction block in between. These reentrant circuits can easily be terminated by properly timed extra beats colliding in the antidromic direction with the reentrant orthodromic wavefront and being...
journal_title:Journal of cardiovascular electrophysiology
pub_type: 杂志文章,评审
doi:
更新日期:1998-08-01 00:00:00
abstract:INTRODUCTION:Little data exists on the electrophysiological differences between sustained atrial fibrillation (sAF; >5 minutes) vs self-terminating nonsustained AF (nsAF; <5 minutes). We sought to investigate the electrophysiological characteristics of coronary sinus (CS) activity during postpulmonary vein isolation (P...
journal_title:Journal of cardiovascular electrophysiology
pub_type: 杂志文章
doi:10.1111/jce.14296
更新日期:2020-01-01 00:00:00
abstract:INTRODUCTION:The objective of this study was to record the ECG of the smallest living mammal to extend the domain of data for comparative AV nodal electrophysiologic purposes. These data are needed to establish the relationship between the PR interval and heart size in mammalian species of all sizes. METHODS AND RESUL...
journal_title:Journal of cardiovascular electrophysiology
pub_type: 杂志文章
doi:10.1111/j.1540-8167.1999.tb00658.x
更新日期:1999-02-01 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
pub_type: 杂志文章
doi:10.1111/j.1540-8167.2009.01678.x
更新日期:2010-05-01 00:00:00
abstract:INTRODUCTION:Many patients with atrial fibrillation (AF) receive amiodarone. Amiodarone-induced hyperthyroidism (AIH) may develop as a complication. We hypothesized that pulmonary vein (PV) isolation in patients with paroxysmal AF and history of AIH may yield a lower success rate. METHODS AND RESULTS:Among 704 patient...
journal_title:Journal of cardiovascular electrophysiology
pub_type: 杂志文章
doi:10.1111/jce.12140
更新日期:2013-08-01 00:00:00
abstract:BACKGROUND:Cardiac implantable electronic device pocket infections require complete system removal. However, postoperative bleeding and hematoma can occur after extensive debridement and an optimal management strategy has yet to be defined. METHODS:Following system removal and debridement, all pockets were treated wit...
journal_title:Journal of cardiovascular electrophysiology
pub_type: 杂志文章
doi:10.1111/jce.14026
更新日期:2019-09-01 00:00:00
abstract:BACKGROUND:Left bundle branch pacing (LBBP) is emerging as a novel option for physiological ventricular pacing. The impact of current of injury (COI) at left bundle branch (LBB) has not been previously evaluated. METHODS:Consecutive patients with QRS duration less than 120 milliseconds referred for LBBP in whom LBB po...
journal_title:Journal of cardiovascular electrophysiology
pub_type: 杂志文章
doi:10.1111/jce.14377
更新日期:2020-04-01 00:00:00