Postshock arrhythmogenesis in a slice of the canine heart.

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:Contact force sensing (CFS) technology improves acute pulmonary vein isolation durability; however, its impact on the clinical outcome of ablating atrial fibrillation (AF) is unknown. METHODS AND RESULTS:First time AF ablation procedures employing CFS from 4 centers were matched retrospectively to those w...

journal_title：Journal of cardiovascular electrophysiology

authors： Jarman JWE,Panikker S,DAS M,Wynn GJ,Ullah W,Kontogeorgis A,Haldar SK,Patel PJ,Hussain W,Markides V,Gupta D,Schilling RJ,Wong T

更新日期：2015-04-01 00:00:00

abstract：INTRODUCTION:This study investigated a hybrid approach to reduce the atrial defibrillation threshold (ADFT) by determining the effect of a single linear radiofrequency ablation (RFA) lesion on both the ADFT and activation patterns during atrial fibrillation (AF). METHODS AND RESULTS:In 18 open chest sheep (45 to 57 kg...

journal_title：Journal of cardiovascular electrophysiology

authors： White JB,Fotuhi PC,Pedoto RW,Chattipakorn N,Rogers JM,Ideker RE

更新日期：2001-04-01 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: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: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：INTRODUCTION:Understanding whether vasovagal syncope is a lifelong disorder might shed insight into its physiology and affect management strategies. Accordingly, we determined the age of the first syncopal spell in adult patients who sought care for syncope. METHODS AND RESULTS:Patients were 42 +/- 18 years old with 6...

journal_title：Journal of cardiovascular electrophysiology

authors： Sheldon RS,Sheldon AG,Connolly SJ,Morillo CA,Klingenheben T,Krahn AD,Koshman ML,Ritchie D,Investigators of the Syncope Symptom Study and the Prevention of Syncope Trial.

更新日期：2006-01-01 00:00:00

abstract：BACKGROUND:The purpose of this study was to assess how well acute procedural outcomes predict the clinical outcome of catheter ablation of premature ventricular complexes (PVCs). METHODS:A consecutive series of 50 patients (28 women, age: 51 ± 13 years) with frequent PVCs was referred for PVC ablation. Acute failure w...

journal_title：Journal of cardiovascular electrophysiology

authors： Baser K,Bas HD,Belardi D,Yokokawa M,Good E,Latchamsetty R,Morady F,Bogun F

更新日期：2014-06-01 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：INTRODUCTION:The success of pulmonary vein isolation (PVI) for atrial fibrillation (AF) may be improved if stable AF sources identified by Focal Impulse and Rotor Mapping (FIRM) are also eliminated. The long-term results of this approach are unclear outside the centers where FIRM was developed; thus, we assessed outcom...

journal_title：Journal of cardiovascular electrophysiology

authors： Miller JM,Kowal RC,Swarup V,Daubert JP,Daoud EG,Day JD,Ellenbogen KA,Hummel JD,Baykaner T,Krummen DE,Narayan SM,Reddy VY,Shivkumar K,Steinberg JS,Wheelan KR

更新日期：2014-09-01 00:00:00

abstract：INTRODUCTION:Cryothermal, HIFU, and laser catheter-based balloon technologies have been developed to simplify ablation for AF. Initial enthusiasm for their widespread use has been dampened by phrenic nerve (PN) injury. The interaction between PN and pulmonary vein (PV) geometry contributing to PN injury is unclear. ME...

journal_title：Journal of cardiovascular electrophysiology

authors： Okumura Y,Henz BD,Bunch TJ,Dalegrave C,Johnson SB,Packer DL

更新日期：2009-10-01 00:00:00

abstract：:Atrial arrhythmias are quite common in patients after heart transplantation; they can occur via focal or reentrant mechanisms and are amenable to curative therapy with catheter ablation. Integration of the individual patient's surgical anatomy with the arrhythmia pattern on 12-lead electrocardiogram can help both to n...

journal_title：Journal of cardiovascular electrophysiology

authors： Dahu MI,Hutchinson MD

更新日期：2012-02-01 00:00:00

abstract：:Innovations in radiofrequency (RF) ablation and nonablative techniques have led to significant advances in addressing complex arrhythmogenic substrates for a variety of cardiac arrhythmias. Anatomical challenges, deep substrate, and mid-myocardial locations may pose difficulties and decrease success rates using routin...

journal_title：Journal of cardiovascular electrophysiology

authors： Sandhu A,Nguyen DT

更新日期：2020-01-01 00:00:00

abstract：:Autonomic dysfunction may occur as a consequence of radiofrequency (RF) catheter ablation of a variety of supraventricular tachycardias. Effects suggestive of autonomic dysfunction that may be seen acutely during the ablation procedure include sudden profound slowing of the sinus rate or transient AV block. These abno...

journal_title：Journal of cardiovascular electrophysiology

authors： Friedman PL,Stevenson WG,Kocovic DZ

更新日期：1996-05-01 00:00:00

abstract：INTRODUCTION:This study was designed to record global high-density maps of left atrial endocardial activation during sinus rhythm and coronary sinus pacing. METHOD AND RESULTS:Noncontact mapping of the left atrium was performed in nine patients with paroxysmal atrial fibrillation undergoing pulmonary vein ablation pro...

journal_title：Journal of cardiovascular electrophysiology

authors： Betts TR,Roberts PR,Morgan JM

更新日期：2004-10-01 00:00:00

abstract：INTRODUCTION:Recent studies have reported the use of temporary epicardial atrial pacing as prophylaxis for postoperative atrial fibrillation (AF). The aim of this study was to assess the effect of pacing therapies for prevention of postoperative AF using meta-analysis. METHODS AND RESULTS:Using a computerized MEDLINE ...

journal_title：Journal of cardiovascular electrophysiology

authors： Daoud EG,Snow R,Hummel JD,Kalbfleisch SJ,Weiss R,Augostini R

更新日期：2003-02-01 00:00:00

abstract：INTRODUCTION:The most frequent complications of AF ablation (AFA) are related to vascular access, but there is little evidence as to how these can be minimized. METHODS:Consecutive patients undergoing AFA at a high-volume center received either standard care (Group S) or routine ultrasound-guided vascular access (Grou...

journal_title：Journal of cardiovascular electrophysiology

authors： Wynn GJ,Haq I,Hung J,Bonnett LJ,Lewis G,Webber M,Waktare JE,Modi S,Snowdon RL,Hall MC,Todd DM,Gupta D

更新日期：2014-07-01 00:00:00

abstract：:Enduring isolation of the pulmonary veins (PV) is becoming increasingly common in patients undergoing repeat catheter ablation for atrial fibrillation. We describe our approach to ablation strategy in a patient with enduring isolation of PV and briefly discuss the role of non-PV triggers. ...

journal_title：Journal of cardiovascular electrophysiology

authors： Kalman JM,Sugumar H

更新日期：2020-07-01 00:00:00

abstract：:Termination of Persistent AF During Mapping. Complex fractionated atrial electrograms (CFAEs) may represent critical areas for the maintenance of atrial fibrillation (AF). While AF organization and termination have been reported with CFAE ablation, no reports of arrhythmia termination during left atrial mapping exist....

journal_title：Journal of cardiovascular electrophysiology

authors： Tzou WS,Sághy L,Lin D

更新日期：2011-10-01 00:00:00

abstract：INTRODUCTION:Fifteen to thirty percent of patients with impaired cardiac function have ventricular dyssynchrony and warrant cardiac resynchronization therapy (CRT). While leadless pacemakers eliminate lead-related complications, their current form factor is limited to single-chamber pacing. In this study, we demonstrat...

journal_title：Journal of cardiovascular electrophysiology

authors： Lyu H,John M,Burkland D,Greet B,Xi Y,Sampaio LC,Taylor DA,Babakhani A,Razavi M

更新日期：2018-11-01 00:00:00

abstract：INTRODUCTION:Syncope occasionally may occur in the supine patient due to severe brady- or tachyarrhythmia. However, recurrent syncope upon assumption of the supine position as a result of a neurally mediated reflex mechanism has not been reported previously. METHODS AND RESULTS:Two young patients, both of whom had sig...

journal_title：Journal of cardiovascular electrophysiology

authors： Iskos D,Shultz JJ,Benditt DG

更新日期：1998-04-01 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

authors： Arnsdorf MF,Xu S

更新日期：1996-07-01 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:Torsade de pointes (TdP), is often preceded by a short-long cycle length sequence. However, the causal relationship between the pause associated with a short-long cycle length sequence and TdP is not completely understood. This study tests the hypothesis that a pause enhances both dispersion of repolarizat...

journal_title：Journal of cardiovascular electrophysiology

authors： Liu J,Laurita KR

更新日期：2005-09-01 00:00:00

abstract：INTRODUCTION:The mechanisms of late (<1 year after the ablation) and very late (>1 year after the ablation) recurrences of paroxysmal atrial fibrillation (AF) after catheter ablation have not been reported. METHODS AND RESULTS:Fifty consecutive patients undergoing a repeated electrophysiologic study to investigate the...

journal_title：Journal of cardiovascular electrophysiology

authors： Hsieh MH,Tai CT,Lee SH,Lin YK,Tsao HM,Chang SL,Lin YJ,Wongchaoen W,Lee KT,Chen SA

更新日期：2006-03-01 00:00:00

abstract：INTRODUCTION:Due to the lack of good molecular markers, for decades the morphogenetic origin of the cardiac conduction system has been a matter of debate. More recently, the spatial expression of minK-lacZ in the adult mouse heart has been shown, for the larger part, to be coincident with the conduction tissues. METHO...

journal_title：Journal of cardiovascular electrophysiology

authors： Kondo RP,Anderson RH,Kupershmidt S,Roden DM,Evans SM

更新日期：2003-04-01 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:The mechanisms by which atrial stretch favors the development of a substrate for atrial fibrillation (AF) are not fully understood. In this study, the role of stretch-induced conduction changes in the creation of a proarrhythmic substrate has been investigated by quantifying the spatial distribution of loc...

journal_title：Journal of cardiovascular electrophysiology

authors： Ravelli F,Masè M,del Greco M,Marini M,Disertori M

更新日期：2011-04-01 00:00:00

abstract：INTRODUCTION:The relationship between the determining factors and beating rates of pulmonary vein (PV) pacemaker cardiomyocytes has not been fully elucidated. The purposes of this study were to compare the electrophysiological characteristics between PV fast and slow pacemaker cardiomyocytes. METHODS:Whole-cell patch ...

journal_title：Journal of cardiovascular electrophysiology

authors： Chen YC,Pan NH,Cheng CC,Higa S,Chen YJ,Chen SA

更新日期：2009-09-01 00:00:00

abstract：INTRODUCTION:The low frequency of spontaneous premature atrial contractions (PACs) may be an impediment to mapping and ablation of atrial fibrillation (AF). It has been shown that PACs following external or internal cardioversion of AF can initiate AF. If this method could reproducibly induce PACs from the same locatio...

journal_title：Journal of cardiovascular electrophysiology

authors： Sra J,Zaidi ST,Krum D,Georgakopoulos N,Ahmad A,Akhtar M

更新日期：2001-12-01 00:00:00