Management of atrial fibrillation in patients with heart failure.

abstract：BACKGROUND:Long QT syndrome type 1 (LQT1) is caused by mutations in KCNQ1, which encodes the α subunit of the slow delayed rectifier potassium current channel. We previously reported that a synonymous mutation, c.1032G>A, p.A344Aspl, in KCNQ1 is most commonly identified in genotyped patients with LQT1 in Japan and the ...

journal_title：Heart rhythm

authors： Wuriyanghai Y,Makiyama T,Sasaki K,Kamakura T,Yamamoto Y,Hayano M,Harita T,Nishiuchi S,Chen J,Kohjitani H,Hirose S,Yokoi F,Gao J,Chonabayashi K,Watanabe K,Ohno S,Yoshida Y,Kimura T,Horie M

更新日期：2018-10-01 00:00:00

abstract：BACKGROUND:Differentiation of supraventricular tachycardia (SVT) with a right bundle branch block (RBBB) pattern from ventricular tachycardia (VT) is difficult, particularly when the R/S ratio in lead V6 is below 1.0. OBJECTIVE:We sought to investigate the electrocardiographic criteria for distinguishing between these...

journal_title：Heart rhythm

authors： Kim M,Kwon CH,Lee JH,Hwang KW,Choi HO,Kim YG,Lee KN,Ahn J,Park HS,Nam GB

更新日期：2020-09-11 00:00:00

abstract：BACKGROUND:The effectiveness of radiofrequency catheter ablation (RFCA) in atrial tachyarrhythmias correlates with lesion transmurality. Ablation Index (AI) is an index that incorporates contact force, time, and radiofrequency power simultaneously and is able to predict lesion size and outcomes in RFCA of atrial fibril...

journal_title：Heart rhythm

authors： Casella M,Gasperetti A,Gianni C,Zucchelli G,Notarstefano P,Al-Ahmad A,Burkhardt JD,Soldati E,Della Rocca D,Catto V,Majocchi B,Carbucicchio C,Bongiorni MG,Dello Russo A,Natale A,Tondo C

更新日期：2019-06-01 00:00:00

abstract：OBJECTIVES:The purpose of this study was to assess the long-term effects of ablation of infarct-related ventricular tachycardia (VT) and the subsequent requirement for implantable cardioverter-defibrillator (ICD) therapy. BACKGROUND:The long-term consequences after initially successful catheter ablation of infarct-rel...

journal_title：Heart rhythm

authors： Segal OR,Chow AW,Markides V,Schilling RJ,Peters NS,Davies DW

更新日期：2005-05-01 00:00:00

abstract：BACKGROUND:Gaps in the roof line have been ascribed to epicardial conduction using the septopulmonary bundle. OBJECTIVES:We sought to evaluate the frequency of septopulmonary bundle bypass during roof line ablation, to describe anatomical conditions favoring this epicardial gap, and to propose an alternative strategy ...

journal_title：Heart rhythm

authors： Pambrun T,Duchateau J,Delgove A,Denis A,Constantin M,Ramirez FD,Chauvel R,Tixier R,Welte N,André C,Nakashima T,Nakatani Y,Kamakura T,Takagi T,Krisai P,Cheniti G,Vlachos K,Bourier F,Takigawa M,Kitamura T,Frontera A

更新日期：2020-11-11 00:00:00

abstract：BACKGROUND:The failure to identify a successful target site for catheter ablation despite extensive endocardial and epicardial mapping is a common feature for an intramural site of origin of a ventricular arrhythmia. OBJECTIVE:The purpose of this study was to assess whether transient suppression of premature ventricul...

journal_title：Heart rhythm

authors： Yokokawa M,Morady F,Bogun F

更新日期：2016-01-01 00:00:00

abstract：BACKGROUND:In recent years, upgrade and revision procedures of cardiac implantable electronic devices (CIEDs) have become increasingly frequent. Patency of the access veins is critical for procedural success. OBJECTIVE:The purpose of this study was to determine the incidence of venous obstruction at the time of system...

journal_title：Heart rhythm

authors： Morani G,Bolzan B,Valsecchi S,Morosato M,Ribichini FL

更新日期：2020-02-01 00:00:00

abstract：BACKGROUND:Dofetilide is a class III antiarrhythmic drug approved for the treatment of atrial fibrillation (AF). Dofetilide-induced corrected QT (QTc) interval prolongation is a surrogate for the degree of drug effect, but the relationships between drug-induced QTc interval prolongation, pharmacological cardioversion (...

journal_title：Heart rhythm

authors： Huang HD,Waks JW,Steinhaus DA,Zimetbaum P

更新日期：2016-07-01 00:00:00

abstract：BACKGROUND:Complex fractionated atrial electrograms have been suggested as important targets for catheter ablation of atrial fibrillation. The etiology and the mechanism of these signals have not been completely elucidated because of limitations of interpretation of these signals in relation to simultaneously acquired ...

journal_title：Heart rhythm

authors： Umapathy K,Masse S,Kolodziejska K,Veenhuyzen GD,Chauhan VS,Husain M,Farid T,Downar E,Sevaptsidis E,Nanthakumar K

更新日期：2008-07-01 00:00:00

abstract：BACKGROUND:Once chamber geometry is determined, the EnSite 3000 noncontact mapping system can create a voltage map during a single cardiac cycle. The EnSite uses an inverse solution to the Laplace equation to process the amplified far-field signals from the noncontact catheter. This process creates a three-dimensional ...

journal_title：Heart rhythm

authors： Voss F,Steen H,Bauer A,Giannitsis E,Katus HA,Becker R

更新日期：2008-02-01 00:00:00

abstract：BACKGROUND:Although left cardiac sympathetic denervation (LCSD) is an effective antiarrhythmic therapy for patients with long QT syndrome (LQTS), direct evidence of reduced sympathetic activity after LCSD in humans is limited. OBJECTIVE:The purpose of this study was to assess skin sympathetic nerve activity (SKNA) in ...

journal_title：Heart rhythm

authors： Han J,Ackerman MJ,Moir C,Cai C,Xiao PL,Zhang P,Briske KA,Zheng LR,Chen PS,Cha YM

更新日期：2020-10-01 00:00:00

abstract：BACKGROUND:Atrial tachycardia (AT) may develop after biatrial surgical ablation of atrial fibrillation. However, the mechanism has not been determined in detail. OBJECTIVE:We aimed to determine the mechanism and treatment of postoperative AT following biatrial surgical ablation in relation to the design and durability...

journal_title：Heart rhythm

authors： Takahashi K,Miyauchi Y,Hayashi M,Iwasaki YK,Yodogawa K,Tsuboi I,Hayashi H,Oka E,Ito Hagiwara K,Fujimoto Y,Shimizu W

更新日期：2016-05-01 00:00:00

abstract：BACKGROUND:Bilateral thoracoscopic stellectomy has antiarrhythmic effects, but the procedure is invasive with associated morbidity. Sympathetic nerves from both stellate ganglia form the deep cardiac plexus (CP) in the aortopulmonary window, anterior to the trachea. OBJECTIVE:The purpose of this study was to demonstra...

journal_title：Heart rhythm

authors： Assis FR,Yu DH,Zhou X,Sidhu S,Bapna A,Engelman ZJ,Misra S,Okada DR,Chrispin J,Berger R,Mandal K,Lee H,Tandri H

更新日期：2019-01-01 00:00:00

abstract：BACKGROUND:Prolonged Tpeak-end (the interval from the peak of the T wave to the end of the T wave) and Tpeak-end/QT ratio have been shown to be markers of arrhythmogenesis in various cardiac disorders. OBJECTIVES:The purpose of this study was to evaluate the utility of Tpeak-end and Tpeak-end/QT ratio at admission in ...

journal_title：Heart rhythm

authors： Shenthar J,Deora S,Rai M,Nanjappa Manjunath C

更新日期：2015-03-01 00:00:00

abstract：OBJECTIVE:The objective of this study was to test the hypothesis that on the epicardium of the in vivo human heart, ventricular fibrillation (VF) consists of chaotic small wavefronts that constantly change paths. BACKGROUND:Despite the significance of VF to cardiovascular mortality, little is known about the wavefront...

journal_title：Heart rhythm

authors： Nanthakumar K,Walcott GP,Melnick S,Rogers JM,Kay MW,Smith WM,Ideker RE,Holman W

更新日期：2004-05-01 00:00:00

abstract：BACKGROUND:Concern exists regarding the potential electromagnetic interaction between pacemakers, implantable cardioverter-defibrillators (ICDs) and digital music players (DMPs). A preliminary study reported interference in 50% of patients whose devices were interrogated near Apple iPods. OBJECTIVE:Given the high prev...

journal_title：Heart rhythm

authors： Webster G,Jordao L,Martuscello M,Mahajan T,Alexander ME,Cecchin F,Triedman JK,Walsh EP,Berul CI

更新日期：2008-04-01 00:00:00

abstract：BACKGROUND:The incidence of atrial tachycardia following Fontan surgery is high, but access to the pulmonary venous atrium, a frequent site of arrhythmia origin, is limited. OBJECTIVES:The purpose of this study is to report our results with a novel transthoracic percutaneous technique that provides direct access to th...

journal_title：Heart rhythm

authors： Nehgme RA,Carboni MP,Care J,Murphy JD

更新日期：2006-01-01 00:00:00

abstract：BACKGROUND:Catheter contact is important for radiofrequency (RF) ablation. Local electrical catheter-to-tissue coupling has been described as a tool to objectively measure contact. OBJECTIVE:We hypothesized that pulmonary vein isolation (PVI) ablation using electrical coupling information (ECI) would yield higher rate...

journal_title：Heart rhythm

authors： Gaspar T,Sih H,Hindricks G,Eitel C,Sommer P,Kircher S,Rolf S,Arya A,Teplitsky L,Piorkowski C

更新日期：2013-02-01 00:00:00

abstract：OBJECTIVE:The purpose of this study is to ascertain the effects of spatially variable ACh distributions on arrhythmogenesis in a morphologically realistic computer model of canine atria. BACKGROUND:Vagal stimulation releases acetylcholine (ACh), which causes a dose-dependent reduction in action potential duration (APD...

journal_title：Heart rhythm

authors： Vigmond EJ,Tsoi V,Kuo S,Arevalo H,Kneller J,Nattel S,Trayanova N

更新日期：2004-09-01 00:00:00

abstract：BACKGROUND:The ionic mechanisms underlying action potential duration alternans are not established. OBJECTIVES:The purpose of this study was to explore the mechanisms underlying action potential alternans. METHODS:Computer simulations were performed using a model of a single ischemic myocyte. To emulate ischemia, ext...

journal_title：Heart rhythm

authors： Hopenfeld B

更新日期：2006-03-01 00:00:00

abstract：BACKGROUND:Recent research findings have revealed a key role of oxidative DNA damage in the pathogenesis of atrial fibrillation (AF). Therefore, the circulating oxidative DNA damage marker 8-hydroxy-2'-deoxyguanosine (8-OHdG) may represent a biomarker for staging AF and identifying patients at risk for AF recurrence an...

journal_title：Heart rhythm

authors： Li J,Zhang D,Ramos KS,Baks L,Wiersma M,Lanters EAH,Bogers AJJC,de Groot NMS,Brundel BJJM

更新日期：2020-10-05 00:00:00

abstract：BACKGROUND:Therapeutic hypothermia (TH) may increase the susceptibility to ventricular arrhythmias by decreasing ventricular conduction velocity (CV) and facilitating arrhythmogenic spatially discordant alternans (SDA). OBJECTIVE:The purpose of this study was to test the hypothesis that rotigaptide, a gap junction enh...

journal_title：Heart rhythm

authors： Hsieh YC,Lin JC,Hung CY,Li CH,Lin SF,Yeh HI,Huang JL,Lo CP,Haugan K,Larsen BD,Wu TJ

更新日期：2016-01-01 00:00:00

abstract：BACKGROUND:Public access defibrillation programs have demonstrated a survival benefit in persons with out-of-hospital cardiac arrest. However, little is known about the effectiveness of early defibrillation in young competitive athletes with sudden cardiac arrest (SCA). OBJECTIVES:The purpose of this study was to inve...

journal_title：Heart rhythm

authors： Drezner JA,Rogers KJ

更新日期：2006-07-01 00:00:00

abstract：BACKGROUND:We previously showed that omega-3 polyunsaturated fatty acids (PUFAs) reduce vulnerability to atrial fibrillation (AF). The mechanisms underlying this effect are unknown. OBJECTIVE:The purpose of this study was to use a genome-wide approach to identify gene expression profiles involved in a new model of AF ...

journal_title：Heart rhythm

authors： Ramadeen A,Laurent G,dos Santos CC,Hu X,Connelly KA,Holub BJ,Mangat I,Dorian P

更新日期：2010-04-01 00:00:00

abstract：BACKGROUND:Mutations in SCN5A are rarely found in Thai patients with Brugada syndrome (BrS). Recent evidence suggested that common genetic variations may underlie BrS in a complex inheritance model. OBJECTIVE:The purpose of this study was to find common and rare/low-frequency genetic variants predisposing to BrS in pe...

journal_title：Heart rhythm

authors： Makarawate P,Glinge C,Khongphatthanayothin A,Walsh R,Mauleekoonphairoj J,Amnueypol M,Prechawat S,Wongcharoen W,Krittayaphong R,Anannab A,Lichtner P,Meitinger T,Tjong FVY,Lieve KVV,Amin AS,Sahasatas D,Ngarmukos T,Wichada

更新日期：2020-12-01 00:00:00

abstract：:Recent new information on the dynamics and molecular mechanisms of electrical rotors and spiral waves has increased our understanding of both atrial fibrillation and ventricular fibrillation. In this brief review, we evaluate the available evidence for the separate roles played by individual sarcolemmal ion channels i...

journal_title：Heart rhythm

authors： Vaquero M,Calvo D,Jalife J

更新日期：2008-06-01 00:00:00

abstract：BACKGROUND:Brugada syndrome (BrS) is a primary arrhythmia syndrome affecting 1 in 2000 of the general population. Genetic testing identifies pathogenic variants in the sodium voltage-gated channel α-subunit 5 gene (SCN5A) in up to 25% of familial BrS. Balanced translocations, which involve the exchange of the ends of 2...

journal_title：Heart rhythm

authors： Yeates L,Ingles J,Gray B,Singarayar S,Sy RW,Semsarian C,Bagnall RD

更新日期：2019-02-01 00:00:00

abstract：BACKGROUND:Lead malfunction is an important cause of morbidity and mortality in patients with an implantable cardioverter-defibrillator (ICD). We have shown that the failure of recalled high-voltage leads significantly increases after ICD generator replacement. However, generator replacement has not been recognized as ...

journal_title：Heart rhythm

authors： Lovelock JD,Cruz C,Hoskins MH,Jones P,El-Chami MF,Lloyd MS,Leon A,DeLurgio DB,Langberg JJ

更新日期：2014-10-01 00:00:00

abstract：BACKGROUND:Magnetic resonance imaging (MRI) has been performed safely in patients without MRI-conditional cardiac implantable electronic devices (CIEDs), but experience specifically with cardiac magnetic resonance imaging (CMR) is limited in this patient population. OBJECTIVE:Evaluate the safety of CMR in non-MRI-cond...

journal_title：Heart rhythm

authors： Do DH,Eyvazian V,Bayoneta AJ,Hu P,Finn JP,Bradfield JS,Shivkumar K,Boyle NG

更新日期：2018-02-01 00:00:00

abstract：BACKGROUND:Prior studies have reported that more than 20% of implantable cardioverter-defibrillator (ICD) implantations in the United States do not adhere to trial-based criteria. OBJECTIVE:We sought to investigate the patient characteristics associated with not meeting the inclusion criteria of the clinical trials th...

journal_title：Heart rhythm

authors： Kaiser DW,Tsai V,Heidenreich PA,Goldstein MK,Wang Y,Curtis J,Turakhia MP,National Cardiovascular Data Registry.

更新日期：2015-10-01 00:00:00