Complex fractionated atrial electrograms related to left atrial wall thickness.

abstract：BACKGROUND:QRS fragmentation (fQRS) during baseline ventricular conduction, a myocardial fibrosis marker, is associated with increased risk of ventricular tachyarrhythmias but may not manifest unless ventricular activation change is provoked. We examined the association of fQRS during right ventricular (RV) pacing with...

journal_title：Journal of cardiovascular electrophysiology

authors： Del-Carpio Munoz F,Noseworthy PA,Gharacholou SM,Scott CG,Nkomo VT,Lopez-Jimenez F,Cha YM,Munger TM,Friedman PA,Asirvatham SJ

更新日期：2018-09-01 00:00:00

abstract：INTRODUCTION:The latest STS guidelines recommend concomitant atrial fibrillation (AF) ablation not only during mitral surgery (Class IA) but also during other-than-mitral cardiac surgery procedures (Class IB) in patients with preoperative AF. Conventional Cox-Maze III/IV procedures are performed on both atria (BA), but...

journal_title：Journal of cardiovascular electrophysiology

authors： Cappabianca G,Ferrarese S,Tutino C,Corazzari C,Matteucci M,Mantovani V,Musazzi A,De Ponti R,Beghi C

更新日期：2019-10-01 00:00:00

abstract：:Percutaneous Radiofrequency Catheter Ablation. Patients with an atrial septal defect (ASD) commonly have atrial fibrillation (AF) and closure of the ASD rarely controls the arrhythmia. We report on the management of 4 patients with recurrent medically refractory AF in the setting of an unrepaired ASD who underwent per...

journal_title：Journal of cardiovascular electrophysiology

authors： Crandall MA,Daoud EG,Daniels CJ,Kalbfleisch SJ

更新日期：2012-01-01 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:Radiofrequency (RF) and cryoablation are routinely used to treat arrhythmias, but the extent and time course of edema associated with the two different modalities is unknown. Our goal was to follow the lesion maturation and edema formation after RF and cryoablation using serial magnetic resonance imaging (...

journal_title：Journal of cardiovascular electrophysiology

authors： Yamashita K,Kholmovski E,Ghafoori E,Kamali R,Kwan E,Lichter J,MacLeod R,Dosdall DJ,Ranjan R

更新日期：2019-02-01 00:00:00

abstract：BACKGROUND:The presence of a single left superior vena cava in the absence of complex congenital heart disease is uncommon, and, in the absence of hemodynamic consequences, it would not be expected to result in cardiovascular signs or symptoms. Single case reports and our anecdotal experience suggested to us that this ...

journal_title：Journal of cardiovascular electrophysiology

authors： Ratnasamy C,Idriss SF,Carboni MP,Kanter RJ

更新日期：2009-02-01 00:00:00

abstract：:Application of radiofrequency energy to arrhythmogenic substrates after careful cardiac mapping could ensure a high success rate in eliminating certain types of tachyarrhythmias. Future studies of catheter ablation will focus on how to improve ablation efficacy and achieve a better result in various types of tachyarrh...

journal_title：Journal of cardiovascular electrophysiology

authors： Chen SA,Chiang CE,Tai CT,Lee SH,Chang MS

更新日期：1995-10-01 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 advent of signal-averaged ECG (SAECG) systems for P wave analysis has made it important to determine if the use of different filtering techniques in these systems is diagnostically equivalent. METHODS AND RESULTS:Three different high-pass filtering techniques and two cutoff frequency values were used:...

journal_title：Journal of cardiovascular electrophysiology

authors： Valverde ER,Quinteiro RA,Bertran GC,Arini PD,Glenny P,Biagetti MO

更新日期：1998-03-01 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

authors： Mikhaylov EN,Orshanskaya VS,Lebedev AD,Szili-Torok T,Lebedev DS

更新日期：2013-08-01 00:00:00

abstract：INTRODUCTION:The purpose of this study is to describe a simple and reliable diagnostic maneuver that allows for the rapid differentiation of atypical AV nodal reentrant tachycardia (AVNRT) from other causes of long RP tachycardia. Long RP tachycardias may be caused by atypical AVNRT, orthodromic reciprocating tachycard...

journal_title：Journal of cardiovascular electrophysiology

authors： Man KC,Niebauer M,Daoud E,Strickberger SA,Kou W,Williamson BD,Morady F

更新日期：1995-09-01 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:This study aimed to elucidate the clinical characteristics and management of periesophageal vagal nerve injury complicating the ablation of atrial fibrillation (AF). METHODS AND RESULTS:A total of 3,695 patients with drug-resistant AF underwent extensive pulmonary vein isolation at our institution. Either...

journal_title：Journal of cardiovascular electrophysiology

authors： Kuwahara T,Takahashi A,Takahashi Y,Kobori A,Miyazaki S,Takei A,Fujino T,Okubo K,Takagi K,Fujii A,Takigawa M,Watari Y,Hikita H,Sato A,Aonuma K

更新日期：2013-08-01 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

authors： Johner N,Namdar M,Shah DC

更新日期：2020-01-01 00:00:00

abstract：INTRODUCTION:Recent studies have implicated repolarization lability in the genesis of malignant ventricular arrhythmias. However, few data exist on assessment of temporal QT interval variability and its relation to arrhythmogenesis. We tested the ability of the QT variability index (QTVI), a measure of beat-to-beat QT ...

journal_title：Journal of cardiovascular electrophysiology

authors： Atiga WL,Calkins H,Lawrence JH,Tomaselli GF,Smith JM,Berger RD

更新日期：1998-09-01 00:00:00

abstract：INTRODUCTION:Idiopathic left ventricular tachycardia typically has a right bundle branch block configuration. The purpose of this case report is to demonstrate that idiopathic ventricular tachycardia arising in or near the left posterior fascicle also may have a left bundle branch block configuration. METHODS AND RESU...

journal_title：Journal of cardiovascular electrophysiology

authors： Zivin A,Goyal R,Daoud E,Man KC,Strickberger SA,Morady F

更新日期：1997-04-01 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：INTRODUCTION:Early recurrence of atrial fibrillation (AF) after cardioversion may be related to shortening of the atrial effective refractory period (ERP). This study compared the effects of verapamil and ibutilide on AF cycle length (AFCL), atrial ERP, and susceptibility to recurrent AF. METHODS AND RESULTS:In 33 adu...

journal_title：Journal of cardiovascular electrophysiology

authors： Sticherling C,Hsu W,Tada H,Bares AC,Oral H,Pelosi F,Knight BP,Strickberger SA,Morady F

更新日期：2002-02-01 00:00:00

abstract：BACKGROUND:We prospectively compared the efficacy, safety, and quality of life (QoL) impact of catheter ablation versus antiarrhythmic drugs (AAD) in elderly patients with persistent atrial fibrillation (AF). METHODS AND RESULTS:Four hundred and twelve consecutive patients, aged ≥ 70 years, underwent ablation (Group A...

journal_title：Journal of cardiovascular electrophysiology

authors： Blandino A,Toso E,Scaglione M,Anselmino M,Ferraris F,Sardi D,Battaglia A,Gaita F

更新日期：2013-07-01 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 presence of heart failure (HF) has been associated with poorer outcomes in patients undergoing catheter ablation (CA) for atrial fibrillation (AF). However, the effectiveness of CA amongst the subset of patients with tachycardia-induced cardiomyopathy (TIC) remains poorly defined. METHODS AND RESULTS:In...

journal_title：Journal of cardiovascular electrophysiology

authors： Yamashita S,Tokuda M,Matsuo S,Mahida S,Hachisuka EO,Sato H,Ikewaki H,Oseto H,Yokoyama M,Isogai R,Tokutake K,Yokoyama K,Narui R,Kato M,Tanigawa S,Sugimoto K,Yoshimura M,Yamane T

更新日期：2019-11-01 00:00:00

abstract：BACKGROUND:Perforation during catheter procedures in either the atrium or ventricle is relatively uncommon, but potentially fatal if tamponade ensues. This study analyzes the occurrence and outcomes of cardiac perforation during catheter-based radiofrequency ablation procedures in the left atrium. METHODS:All patients...

journal_title：Journal of cardiovascular electrophysiology

authors： Bunch TJ,Asirvatham SJ,Friedman PA,Monahan KH,Munger TM,Rea RF,Sinak LJ,Packer DL

更新日期：2005-11-01 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

authors： Tada H,Oral H,Ozaydin M,Greenstein R,Pelosi F Jr,Knight BP,Strickberger SA,Morady F

更新日期：2002-01-01 00:00:00

abstract：INTRODUCTION:The apamin-sensitive small-conductance calcium-activated potassium current (IKAS ) is increased in heart failure. It is unknown if myocardial infarction (MI) is also associated with an increase of IKAS . METHODS AND RESULTS:We performed Langendorff perfusion and optical mapping in 6 normal hearts and 10 h...

journal_title：Journal of cardiovascular electrophysiology

authors： Lee YS,Chang PC,Hsueh CH,Maruyama M,Park HW,Rhee KS,Hsieh YC,Shen C,Weiss JN,Chen Z,Lin SF,Chen PS

更新日期：2013-10-01 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：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

abstract：:Although the annual incidence of sudden cardiac death (SCD) is dropping in the United States, therapies for the patient who has survived a SCD episode or is at high risk of developing SCD in the future are now well established. The implantable cardioverter defibrillator (ICD) has emerged from a series of well done ran...

journal_title：Journal of cardiovascular electrophysiology

authors： Cannom DS

更新日期：2005-09-01 00:00:00

abstract：INTRODUCTION:Atrial fibrillation and atrial flutter often coexist. The long-term occurrence of atrial fibrillation in patients presenting with atrial flutter alone is unknown. We report the long-term follow-up in patients who underwent cavotricuspid isthmus ablation for treatment of lone atrial flutter. METHODS AND RE...

journal_title：Journal of cardiovascular electrophysiology

authors： Ellis K,Wazni O,Marrouche N,Martin D,Gillinov M,McCarthy P,Saad EB,Bhargava M,Schweikert R,Saliba W,Bash D,Rossillo A,Erciyes D,Tchou P,Natale A

更新日期：2007-08-01 00:00:00

abstract：BACKGROUND:Radiofrequency high-power ablation appears to be a novel concept for atrial fibrillation (AF). The ablation index (AI) value has been associated with durability of pulmonary vein isolation (PVI). OBJECTIVES:This study aimed to report the procedural data and initial results of a combined ablation technique u...

journal_title：Journal of cardiovascular electrophysiology

authors： Chen S,Schmidt B,Bordignon S,Urbanek L,Tohoku S,Bologna F,Angelkov L,Garvanski I,Tsianakas N,Konstantinou A,Trolese L,Weise F,Perrotta L,Chun KRJ

更新日期：2019-12-01 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