Hyperventilation facilitates induction of supraventricular tachycardia: a novel method and the possible mechanism.

abstract：:A 31-year-old woman with tricuspid atresia and a palliative Waterston shunt presented with intractable poorly tolerated supraventricular tachycardia. Electrophysiologic evaluation was consistent with AV nodal reentrant tachycardia. The fast pathway region was mapped electroanatomically during tachycardia and with cons...

journal_title：Journal of cardiovascular electrophysiology

authors： Khairy P,Seslar SP,Triedman JK,Cecchin F

更新日期：2004-06-01 00:00:00

abstract：:We describe the case of 2-year-old baby with compound heterozygosity for paternal and maternal alleles mutation of α-subunit of the cardiac sodium channel (SCN5A), sinus node dysfunction, atrial flutter recurrences, and drug induced long-QT syndrome. In this setting, we chose at first to perform linear ablation of cav...

journal_title：Journal of cardiovascular electrophysiology

authors： De Filippo P,Ferrari P,Iascone M,Racheli M,Senni M

更新日期：2015-03-01 00:00:00

abstract：INTRODUCTION:Catheter stimulation of the inferior interatrial ganglionated parasympathetic plexus decreases the ventricular rate during atrial fibrillation (AF) in humans. However, the relatively high stimulation voltages might prevent implementation of neurostimulation in chronic implantable devices. From myocardial e...

journal_title：Journal of cardiovascular electrophysiology

authors： Soós P,Merkely B,Horvat PM,Zima E,Schauerte P

更新日期：2005-12-01 00:00:00

abstract：:Ischemic preconditioning is a phenomenon whereby exposure of the myocardium to a brief episode of ischemia and reperfusion markedly reduces tissue necrosis induced by a subsequent prolonged ischemia. Therefore, it is hoped that elucidation of the mechanism of preconditioning will yield therapeutic strategies capable o...

journal_title：Journal of cardiovascular electrophysiology

authors： Baines CP,Cohen MV,Downey JM

更新日期：1999-05-01 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

authors： van der Tweel LH,Strackee J,Stokhof AA,Wassenaar C,Meijler FL

更新日期：1999-02-01 00:00:00

abstract：INTRODUCTION:Following myocardial infarction (MI), left ventricular function is determined by cardiac remodeling occurring in both infarcted and noninfarcted myocardium (NIM). Unipolar voltage mapping may detect remodeling changes in NIM that are associated with the left ventricular ejection fraction (LVEF). We aimed t...

journal_title：Journal of cardiovascular electrophysiology

authors： Aldhoon B,Frankel DS,Hutchinson MD,Callans DJ,Epstein AE,Dixit S,Riley MP,Lin D,Garcia FC,Supple GE,Cooper JM,Bala R,Deo R,Zado ES,Marchlinski FE

更新日期：2014-03-01 00:00:00

abstract：INTRODUCTION:Torsades de pointes have been observed during treatment with droperidol, a butyrophenone neuroleptic agent. Our objectives were (1) to characterize the effects of droperidol on cardiac repolarization and (2) to evaluate effects of droperidol on a major time-dependent outward potassium current involved in c...

journal_title：Journal of cardiovascular electrophysiology

authors： Drolet B,Zhang S,Deschênes D,Rail J,Nadeau S,Zhou Z,January CT,Turgeon J

更新日期：1999-12-01 00:00:00

abstract：BACKGROUND:The usefulness of ventricular entrainment to differentiate AV nodal reentrant tachycardia (AVNRT) from orthodromic reciprocating tachycardia (ORT) by substracting the corrected postpacing interval (cPPI) from the tachycardia cycle length (TCL) or the ventriculoatrial interval during stimulation (SA) from tha...

journal_title：Journal of cardiovascular electrophysiology

authors： Javier García-Fernández F,Almendral J,Marta Pachón,González-Torrecilla E,Martín J,Gallardo R

更新日期：2013-05-01 00:00:00

abstract：INTRODUCTION:Functional tricuspid regurgitation (TR) remains a challenging clinical problem with poor outcomes and few effective treatments. Atrial fibrillation (AF) has been associated with functional TR. We sought to determine whether restoring sinus rhythm through catheter ablation of AF can decrease the degree of T...

journal_title：Journal of cardiovascular electrophysiology

authors： Markman TM,Plappert T,De Feria Alsina A,Levin M,Amankwah N,Sheth S,Gertz ZM,Schaller RD,Marchlinski FE,Rame JE,Frankel DS

更新日期：2020-11-01 00:00:00

abstract：INTRODUCTION:Large animal models of progressive atrial fibrosis would provide an attractive platform to study relationship between structural and electrical remodeling in atrial fibrillation (AF). Here we established a new transgenic goat model of AF with cardiac specific overexpression of TGF-β1 and investigated the c...

journal_title：Journal of cardiovascular electrophysiology

authors： Polejaeva IA,Ranjan R,Davies CJ,Regouski M,Hall J,Olsen AL,Meng Q,Rutigliano HM,Dosdall DJ,Angel NA,Sachse FB,Seidel T,Thomas AJ,Stott R,Panter KE,Lee PM,Van Wettere AJ,Stevens JR,Wang Z,MacLeod RS,Marrouche NF,

更新日期：2016-10-01 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：INTRODUCTION:Paroxysmal atrial fibrillation (AF) may be triggered by intermittent atrial tachycardia, and ultimately lead to persistent AF. However, the mechanisms by which intermittent atrial tachycardia promotes sustained AF are not well understood. METHODS AND RESULTS:Eight sheep were chronically implanted with 2 p...

journal_title：Journal of cardiovascular electrophysiology

authors： Monigatti-Tenkorang J,Jousset F,Pascale P,Vesin JM,Ruchat P,Fromer M,Narayan SM,Pruvot E

更新日期：2014-04-01 00:00:00

abstract：:Atrial fibrillation results in several structural and functional changes in the heart that lead to worsening ventricular function. Although restoration of sinus rhythm is the ideal goal, it is not always feasible. Pharmacologic therapy is associated with adverse effects and is not always effective. We have reviewed th...

journal_title：Journal of cardiovascular electrophysiology

authors： Narasimhan C,Blanck Z,Akhtar M

更新日期：1998-08-01 00:00:00

abstract：INTRODUCTION:This observational study was designed to analyze the safety and feasibility of percutaneous skin closure using a purse-string suture and compare it with the use of a compression bandage after pulmonary vein isolation. METHODS AND RESULTS:A total of 407 patients undergoing pulmonary vein isolation (217 wit...

journal_title：Journal of cardiovascular electrophysiology

authors： Akkaya E,Berkowitsch A,Zaltsberg S,Deubner N,Greiss H,Hain A,Hamm CW,Sperzel J,Neumann T,Kuniss M

更新日期：2017-09-01 00:00:00

abstract：BACKGROUND:The value of signal-averaged ECG (SAECG) in the risk stratification of Chagas disease (ChD), a potentially lethal illness prevalent in Latin America, remains controversial. The aim of this prospective longitudinal study was to determine the prognostic value of SAECG in ChD, using multivariate models with oth...

journal_title：Journal of cardiovascular electrophysiology

authors： Ribeiro AL,Cavalvanti PS,Lombardi F,Nunes Mdo C,Barros MV,Rocha MO

更新日期：2008-05-01 00:00:00

abstract：INTRODUCTION:Recent work has suggested a role for organized sources in sustaining ventricular fibrillation (VF). We assessed whether ablation of rotor substrate could modulate VF inducibility in canines, and used this proof-of-concept as a foundation to suppress antiarrhythmic drug-refractory clinical VF in a patient w...

journal_title：Journal of cardiovascular electrophysiology

authors： Krummen DE,Hayase J,Vampola SP,Ho G,Schricker AA,Lalani GG,Baykaner T,Coe TM,Clopton P,Rappel WJ,Omens JH,Narayan SM

更新日期：2015-10-01 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：BACKGROUND:Ablation of atrial tachycardia (AT) that occurs after cardiac surgery or prior ablation often requires complex lesion sets. In combination with the pre-existing atrial scar, these lesion sets may result in inadvertent intra-atrial conduction block. This study reports the phenomenon of incidental isolation of...

journal_title：Journal of cardiovascular electrophysiology

authors： Markowitz SM,Choi DY,Daian F,Liu CF,Cheung JW,Thomas G,Ip JE,Lerman BB

更新日期：2019-10-01 00:00:00

abstract：:Macro-Reentrant ARVC epi-VT with a Focal Endo-Activation. A 55-year-old man with arrhythmogenic right ventricular cardiomyopathy underwent catheter ablation of ventricular tachycardia (VT) with left bundle branch block and left superior axis QRS morphology with an early precordial transition. Endocardial mapping durin...

journal_title：Journal of cardiovascular electrophysiology

authors： Yamada T,Plumb VJ,Tabereaux PB,Kay GN

更新日期：2009-06-01 00:00:00

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: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:Atrial fibrillation (AF) in the left atrium (LA) is poorly defined in terms of regional differences in the degree of organization, characteristics of paroxysmal and persistent variants, and electrophysiologic events that develop at the onset of episodes. METHODS AND RESULTS:The study population consisted ...

journal_title：Journal of cardiovascular electrophysiology

authors： Ndrepepa G,Karch MR,Schneider MA,Weyerbrock S,Schreieck J,Deisenhofer I,Zrenner B,Schömig A,Schmitt C

更新日期：2002-06-01 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：:A case of intermittent sinus parasystole in which the parasystolic focus is protected from the dominant sinus rhythm only during the second half of its intrinsic cycle is reported. In addition, a modulating (i.e., electronic) effect is often clearly exerted from the dominant rhythm upon the focus during the protected ...

journal_title：Journal of cardiovascular electrophysiology

authors： Satullo G,Donato A,Busá G,Cavallaro L

更新日期：1996-03-01 00:00:00

abstract：INTRODUCTION:The upper limit of vulnerability (ULV) correlates with the defibrillation threshold (DFT). The ULV can be determined with a single episode of ventricular fibrillation and is more reproducible than the single-point DFT. The critical-point hypothesis of defibrillation predicts that the relation between the U...

journal_title：Journal of cardiovascular electrophysiology

authors： Swerdlow CD,Kass RM,O'Connor ME,Chen PS

更新日期：1998-04-01 00:00:00

abstract：INTRODUCTION:The effects of adenosine on atrial tachycardia (AT) remain controversial, and the mechanistic implications of adenosine termination have not been fully established. The purpose of this study was to elucidate the differential effects of adenosine on focal and macroreentrant AT and describe the characteristi...

journal_title：Journal of cardiovascular electrophysiology

authors： Markowitz SM,Stein KM,Mittal S,Slotwiner DJ,Lerman BB

更新日期：1999-04-01 00:00:00

abstract：INTRODUCTION:Diagnosis of arrhythmogenic right ventricular dysplasia/cardiomyopathy (ARVD/C) has major implications for the management of patients and their first-degree relatives. Diagnosis is based on a set of criteria proposed by the International Task Force for Cardiomyopathies. We report our experience in providin...

journal_title：Journal of cardiovascular electrophysiology

authors： Bomma C,Rutberg J,Tandri H,Nasir K,Roguin A,Tichnell C,Rodriguez R,James C,Kasper E,Spevak P,Bluemke DA,Calkins H

更新日期：2004-03-01 00:00:00

abstract：INTRODUCTION:Acute myocardial ischemia, which opens K(ATP) channel, is associated with shortened action potential duration (APD) but prolonged QT interval. This discrepancy has not been adequately explained. We hypothesize that the duration of intracellular calcium (Ca(i)) transient (DCaT) may play a role in determinin...

journal_title：Journal of cardiovascular electrophysiology

authors： Wu S,Hayashi H,Lin SF,Chen PS

更新日期：2005-08-01 00:00:00

abstract：INTRODUCTION:We sought to explore the relationship between ventricular tachycardia (VT) and premature ventricular complex (PVC) burden (from implantable cardioverter-defibrillator diagnostics), before and during corticosteroid use in patients with newly diagnosed clinically manifest cardiac sarcoidosis (CS). METHODS:A...

journal_title：Journal of cardiovascular electrophysiology

authors： Medor MC,Spence S,Nery PB,Beanlands R,Promislow S,Juneau D,de Kemp R,Ha AC,Rivard L,Gula L,Birnie DH

更新日期：2020-10-01 00:00:00

abstract：INTRODUCTION:Recent evidence has demonstrated that defibrillation shocks terminate or reset reentrant activity in the myocardium through the generation of virtual electrode polarization (VEP). Previous research has revealed that the shock establishes phase singularities (PSs) in the tissue via the VEP mechanism. The ai...

journal_title：Journal of cardiovascular electrophysiology

authors： Hillebrenner MG,Eason JC,Campbell CA,Trayanova NA

更新日期：2003-10-01 00:00:00