abstract：INTRODUCTION:In isolated rabbit hearts, repetitive endocardial focal discharges (REFDs) were consistently observed during ventricular fibrillation (VF) with prolonged (>5 minutes) global ischemia (GI). We hypothesized that BAPTA-AM, a calcium chelator, can suppress these REFDs. METHODS AND RESULTS:Using a two-camera o...

journal_title：Journal of cardiovascular electrophysiology

authors： Wu TJ,Lin SF,Hsieh YC,Lin TC,Lin JC,Ting CT

更新日期：2011-10-01 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: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:Neurally mediated syncope (NMS) is a common disorder that is triggered by orthostatic stress. The circulatory adjustments to orthostatic stress occur just prior to a sudden loss of consciousness. NMS prediction would protect patients from falls or accidents. METHODS AND RESULTS:Based on simultaneously recor...

journal_title：Journal of cardiovascular electrophysiology

authors： Meyer C,Morren G,Muehlsteff J,Heiss C,Lauer T,Schauerte P,Rassaf T,Purerfellner H,Kelm M

更新日期：2011-09-01 00:00:00

abstract：BACKGROUND:Close association between atrial fibrillation (AF) and brain natriuretic peptide (BNP) has been demonstrated by several studies. Important gender differences exist in AF patients including a higher plasma BNP level in women. Therefore, it is imperative to evaluate the relationship between AF and BNP separate...

journal_title：Journal of cardiovascular electrophysiology

authors： Mohanty S,Mohanty P,Di Biase L,Rong B,Burkhardt D,Gallinghouse JG,Horton R,Sanchez JE,Bailey S,Zagrodzky J,Natale A

更新日期：2011-08-01 00:00:00

abstract：:Retrograde lower common pathway block during AV nodal reentrant tachycardia has rarely been reported. In this report, we demonstrate retrograde ventriculoatrial block during sinus rhythm and during AV nodal reentrant tachycardia in a woman with recurrent supraventricular tachycardia. In addition, evidence of antegrade...

journal_title：Journal of cardiovascular electrophysiology

authors： Wood M,Kiser R,Ellenbogen K

更新日期：2011-08-01 00:00:00

abstract：BACKGROUND:Frequent premature ventricular complexes (PVCs) can cause a decline in left ventricular ejection fraction (LVEF). We investigated whether the site of origin and other PVC characteristics are associated with LVEF. METHODS:We retrospectively studied 70 consecutive patients (mean age 42 ± 17 years, 40 [57%] fe...

journal_title：Journal of cardiovascular electrophysiology

authors： Del Carpio Munoz F,Syed FF,Noheria A,Cha YM,Friedman PA,Hammill SC,Munger TM,Venkatachalam KL,Shen WK,Packer DL,Asirvatham SJ

更新日期：2011-07-01 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:Little is known about the incidence and timing of reactive pericardial collections developing after left atrial catheter ablation (LACA), and when and if transthoracic echocardiography (TTE) should be performed routinely in these patients postprocedure. METHODS AND RESULTS:Two hundred consecutive LACA pat...

journal_title：Journal of cardiovascular electrophysiology

authors： Kalla M,Rajappan K,Kalra S,Thomas G,Redpath C,Earley MJ,Sporton SC,Schilling RJ

更新日期：2011-07-01 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：:After being struck by a car at the age of 7, an otherwise healthy boy developed recalcitrant, albeit hemodynamically, well-tolerated ventricular tachycardia. An electrophysiological study with 3-dimensional electroanatomic mapping was performed under transesophageal echocardiographic guidance at 10 years of age. Nonau...

journal_title：Journal of cardiovascular electrophysiology

authors： Horduna I,Dubuc M,Rochon AG,Khairy P

更新日期：2011-06-01 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：: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:Reentry utilizing cavotricuspid isthmus (CTI) is accepted as the mechanism underlying typical atrial flutter (AFLT). However, it is unclear how the right atrial (RA) posterior wall (PW) participates in AFLT circuit. We sought to investigate this by using noncontact electroanatomic mapping. METHODS:Fifteen p...

journal_title：Journal of cardiovascular electrophysiology

authors： Dixit S,Lavi N,Robinson M,Riley MP,Callans DJ,Marchlinski FE,Lin D

更新日期：2011-04-01 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：UNLABELLED:VT Ablation in Apical Hypertrophic Cardiomyopathy.  INTRODUCTION:Monomorphic ventricular tachycardia (VT) is uncommon in apical hypertrophic cardiomyopathy (HCM). The purpose of this study was to define the substrate and role of catheter ablation for VT in apical HCM. METHODS:Four patients with apical HCM ...

journal_title：Journal of cardiovascular electrophysiology

authors： Inada K,Seiler J,Roberts-Thomson KC,Steven D,Rosman J,John RM,Sobieszczyk P,Stevenson WG,Tedrow UB

更新日期：2011-01-01 00:00:00

abstract：:There is an increasing need for invasive electrophysiologists to appreciate the exact anatomy of the epicardial space and the coronary veins. The location of the epicardial fat, the complementary relationship with the main cardiac veins, and the location of sensitive structures (arteries, phrenic nerve, esophagus) hav...

journal_title：Journal of cardiovascular electrophysiology

authors： Lachman N,Syed FF,Habib A,Kapa S,Bisco SE,Venkatachalam KL,Asirvatham SJ

更新日期：2010-12-01 00:00:00

abstract：INTRODUCTION:accurate selection of patients for vasovagal syncope studies requires strong risk stratification and knowledge of the natural history of syncope. We aimed to test the hypothesis that recent history of vasovagal syncope compared to distant history better predicts subsequent recurrence of syncope. METHODS A...

journal_title：Journal of cardiovascular electrophysiology

authors： Sumner GL,Rose MS,Koshman ML,Ritchie D,Sheldon RS,Prevention of Syncope Trial Investigators.

更新日期：2010-12-01 00:00:00

abstract：UNLABELLED:Electrical Activity and RhoA in the Embryo. INTRODUCTION:Myocardium at the venous pole (sinus venosus) of the heart has gained clinical interest as arrhythmias can be initiated from this area. During development, sinus venosus myocardium is incorporated to the primary heart tube and expresses different mark...

journal_title：Journal of cardiovascular electrophysiology

authors： Vicente-Steijn R,Kolditz DP,Mahtab EA,Askar SF,Bax NA,VAN DER Graaf LM,Wisse LJ,Passier R,Pijnappels DA,Schalij MJ,Poelmann RE,Gittenberger-DE Groot AC,Jongbloed MR

更新日期：2010-11-01 00:00:00

abstract：BACKGROUND:Residual gaps due to incomplete ablation lines are known to be the most common cause of recurrent atrial fibrillation (AF) after catheter ablation. We hypothesized that any residual potentials at the junction of the left atrium and pulmonary vein (PV), inside the circumferential PV ablation (CPVA) lines, wou...

journal_title：Journal of cardiovascular electrophysiology

authors： Kim YH,Lim HE,Pak HN,Kwak JJ,Park JS,Choi JI,Park SW,Kim YH

更新日期：2010-09-01 00:00:00

abstract：BACKGROUND:Atrial fibrillation (AF) increases morbidity and mortality in patients with previous myocardial infarction and left ventricular systolic dysfunction. The purpose of this study was to identify patients with a high risk for new-onset AF in this population using invasive and noninvasive electrophysiological tes...

journal_title：Journal of cardiovascular electrophysiology

authors： Jons C,Raatikainen P,Gang UJ,Huikuri HV,Joergensen RM,Johannesen A,Dixen U,Messier M,McNitt S,Thomsen PE,Cardiac Arrhythmias and Risk Stratification after Acute Myocardial Infarction (CARISMA) Study Group.

更新日期：2010-09-01 00:00:00

abstract：INTRODUCTION:Reversible esophageal thermal lesions after cryoballoon pulmonary vein isolation (CB-PVI) have been reported when using variable balloon sizes. The aim of this study was to investigate (1) the incidence of esophageal thermal lesions, and (2) esophageal temperature changes associated with CB-PVI using the s...

journal_title：Journal of cardiovascular electrophysiology

authors： Fürnkranz A,Chun KR,Metzner A,Nuyens D,Schmidt B,Burchard A,Tilz R,Ouyang F,Kuck KH

更新日期：2010-08-01 00:00:00

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：BACKGROUND:Patients with left bundle branch block (LBBB) undergoing right heart catheterization can develop complete heart block (CHB) or right bundle branch block (RBBB) in response to right bundle branch (RBB) trauma. We hypothesized that LBBB patients with an initial r wave (>or=1 mm) in lead V1 have intact left to ...

journal_title：Journal of cardiovascular electrophysiology

authors： Padanilam BJ,Morris KE,Olson JA,Rippy JS,Walsh MN,Subramanian N,Vidal A,Prystowsky EN,Steinberg LA

更新日期：2010-07-01 00:00:00

abstract：:A 28-year-old man presented with progressive fatigue. Physical examination and ECG revealed severe sinus bradycardia. Echocardiography showed features of noncompaction cardiomyopathy and moderate aortic valve regurgitation. We hypothesized that the chronic volume overload exaggerated by prolonged diastole due to the b...

journal_title：Journal of cardiovascular electrophysiology

authors： Caliskan K,Balk AH,Jordaens L,Szili-Torok T

更新日期：2010-07-01 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：INTRODUCTION:We compared the efficacy and safety of amiodarone and dronedarone in patients with persistent atrial fibrillation (AF). METHODS:Five hundred and four amiodarone-naïve patients were randomized to receive dronedarone 400 mg bid (n = 249) or amiodarone 600 mg qd for 28 days then 200 mg qd (n = 255) for at le...

journal_title：Journal of cardiovascular electrophysiology

authors： Le Heuzey JY,De Ferrari GM,Radzik D,Santini M,Zhu J,Davy JM

更新日期：2010-06-01 00:00:00

abstract：INTRODUCTION:The utility of "virtual" imaging systems for left atrial (LA) navigation has been hampered by inadequate spatial detail, as well as inaccurate integration of more detailed preoperative images, such as those generated by computed tomography (CT). CartoSound is an intracardiac echocardiography (ICE)-based te...

journal_title：Journal of cardiovascular electrophysiology

authors： Schwartzman D,Zhong H

更新日期：2010-06-01 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: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：BACKGROUND:Radiofrequency (RF) ablation for ventricular tachycardia (VT) has high failure rates. Whether endocavitary structures (ECS) such as the papillary muscles (PMs), moderator bands (MBs), or false tendons (FTs) impact VT ablation is unknown. METHODS AND RESULTS:We retrospectively reviewed records of 190 consecu...

journal_title：Journal of cardiovascular electrophysiology

authors： Abouezzeddine O,Suleiman M,Buescher T,Kapa S,Friedman PA,Jahangir A,Mears JA,Ladewig DJ,Munger TM,Hammill SC,Packer DL,Asirvatham SJ

更新日期：2010-03-01 00:00:00

abstract：INTRODUCTION:Transvenous cryoablation has proven to be safe and effective for the treatment of supraventricular arrhythmias. The aim of this prospective study was to report the feasibility and safety of catheter-based cryoablation for the treatment of postinfarction and idiopathic ventricular tachycardia (VT). METHODS...

journal_title：Journal of cardiovascular electrophysiology

authors： Timmermans C,Manusama R,Alzand B,Rodriguez LM

更新日期：2010-03-01 00:00:00

abstract：INTRODUCTION:Endpoints confirming block in the critical isthmus in sinus rhythm and with pace mapping have not been established. METHODS AND RESULTS:A 44-year-old man with a history of Tetralogy of Fallot presented with recurrent ventricular tachycardia (VT). Entrainment mapping was consistent with a macroreentrant ci...

journal_title：Journal of cardiovascular electrophysiology

authors： Bala R,Dhruvakumar S,Latif SA,Marchlinski FE

更新日期：2010-03-01 00:00:00

abstract：BACKGROUND:AF can be induced by RAP or ISO in >85% of patients with PAF. METHODS:ISO was administered in escalating doses of 5, 10, 15, and 20 microg/min in 112 patients (age = 56 +/- 13 years) with PAF before radiofrequency catheter ablation. AF was inducible in 97 of 112 patients (87%) at a mean dose of 15 +/- 5 mic...

journal_title：Journal of cardiovascular electrophysiology

authors： Crawford T,Chugh A,Good E,Yoshida K,Jongnarangsin K,Ebinger M,Pelosi F Jr,Bogun F,Morady F,Oral H

更新日期：2010-01-01 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:Atrial electromechanical dysfunction might contribute to the development of atrial fibrillation (AF) in patients with sinus node disease (SND). The aim of this study was to investigate the prevalence and impact of atrial mechanical dyssynchrony on atrial function in SND patients with or without paroxysmal ...

journal_title：Journal of cardiovascular electrophysiology

authors： Wang M,Lau CP,Zhang XH,Siu CW,Lee KL,Yan GH,Yue WS,Tse HF

更新日期：2009-11-01 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：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: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：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