Cultured adult rabbit myocytes: effect of adding supplements to the medium, and response to isoprenaline.

abstract：BACKGROUND:Electrical connections between ipsilateral pulmonary veins (PVs) have been reported histologically and electrophysiologically. This study investigated the impact of electrical connections between ipsilateral PVs on PV isolation using second-generation cryoballoons (CB2-PVI). METHODS:Five hundred eleven atri...

journal_title：Journal of cardiovascular electrophysiology

authors： Miyazaki S,Kajiyama T,Watanabe T,Hada M,Nakamura H,Hachiya H,Tada H,Hirao K,Iesaka Y

更新日期：2019-01-01 00:00:00

abstract：BACKGROUND:Individual risk factors of intraprocedural cardiac injury (cardiac perforation and tamponade) during implantable cardioverter defibrillator (ICD) placement have been documented. However, the prognostic impact of their coexistence has not been explored. OBJECTIVE:To develop a risk score model to identify pat...

journal_title：Journal of cardiovascular electrophysiology

authors： Padala SK,Gunda S,Li S,Sharma PS,Koneru JN,Varosy PD,Ellenbogen KA

更新日期：2019-02-01 00:00:00

abstract：BACKGROUND:Hemodynamic instability hinders activation and entrainment mapping during ventricular tachycardia ablation. The Impella 2.5 microaxial flow device (MFD; Abiomed Inc., Danvers, MA, USA) is used to prevent hemodynamic instability during electrophysiologic study. However, electromagnetic interference (EMI) gene...

journal_title：Journal of cardiovascular electrophysiology

authors： Vaidya VR,Desimone CV,Madhavan M,Noheria A,Shahid M,Walters J,Ladewig DJ,Mikell SB,Johnson SB,Suddendorf SH,Asirvatham SJ

更新日期：2014-07-01 00:00:00

abstract：:A patient with congenital complete heart block underwent implantation of a dual-chamber pacemaker. He presented to the emergency room with fatigue and was found to be in atrial flutter. Device interrogation revealed undersensing of 5 mV flutter waves at a programmed sensitivity of 0.5 mV. Due to undersensing, mode swi...

journal_title：Journal of cardiovascular electrophysiology

authors： Kalahasty G,Kenigsberg DN,Wood MA,Ellenbogen KA

更新日期：2006-11-01 00:00:00

abstract：INTRODUCTION:Despite the importance of neurogenic initiation of rapid firing from pulmonary veins (PVs), the mechanism of autonomic modulation of electrophysiological properties of the PV myocardium to form a substrate for atrial arrhythmia remains poorly understood. METHODS AND RESULTS:A 2-microelectrode technique wa...

journal_title：Journal of cardiovascular electrophysiology

authors： Egorov YV,Kuz'min VS,Glukhov AV,Rosenshtraukh LV

更新日期：2015-10-01 00:00:00

abstract：INTRODUCTION:The mechanism of complex fractionated atrial electrogram (CFAE) in patients with atrial fibrillation (AF) remains controversial. This study investigated the relationship between CFAE and left atrial (LA) wall thickness. METHODS AND RESULTS:LA muscular wall thickness (excluding fat) was measured by cardiac...

journal_title：Journal of cardiovascular electrophysiology

authors： Wi J,Lee HJ,Uhm JS,Kim JY,Pak HN,Lee M,Kim YJ,Joung B

更新日期：2014-11-01 00:00:00

abstract：BACKGROUND:The prevalence and predictors of left atrial appendage thrombus (LAAT) in patients with non-valvular atrial fibrillation (AF) who have been treated with non-vitamin K antagonist oral anticoagulants (NOACs) are not well defined. We aimed to assess the occurrence and predictors of LAAT on transesophageal echoc...

journal_title：Journal of cardiovascular electrophysiology

authors： Gorczyca I,Michalska A,Chrapek M,Budnik M,Starzyk K,Jelonek O,Uziębło-Życzkowska B,Kapłon-Cieślicka A,Gawałko M,Krzesiński P,Jurek A,Scisło P,Kochanowski J,Kiliszek M,Gielerak G,Filipiak KJ,Opolski G,Wożakowska-Kapłon B

更新日期：2020-08-01 00:00:00

abstract：:The remedē system is a novel fully implantable transvenous phrenic nerve stimulation (TPNS) device developed to treat central sleep apnea. No information is published on how to explant or replace its leads. An eighty-one year-old had a fractured lead and we removed it over a wire. However, unbreachable resistances occ...

journal_title：Journal of cardiovascular electrophysiology

authors： Gutleben KJ,Eitz T,Westlund R,Gummert JF,Sommer P,Fox H

更新日期：2020-11-01 00:00:00

abstract：:The cavotricuspid isthmus (CVTI) is the well-established location of atrial tissue critical for the maintenance of typical atrial flutter. The CVTI begins at the electrically inert tricuspid valve and includes the atrial myocardium up to the inferior vena cava (IVC). In this article, we discuss relevant CVTI and right...

journal_title：Journal of cardiovascular electrophysiology

authors： Asirvatham SJ

更新日期：2009-01-01 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:The purpose of this investigation was to study the transmembrane potential changes (delta Vm) during extracellular electrical field stimulation. METHODS AND RESULTS:Vm was recorded in seven guinea pig papillary muscles in a tissue bath by a double-barrel microelectrode with one barrel in and the other jus...

journal_title：Journal of cardiovascular electrophysiology

authors： Zhou X,Rollins DL,Smith WM,Ideker RE

更新日期：1995-04-01 00:00:00

abstract：:Catheter ablation for ventricular tachycardia (VT) is becoming an essential component of the successful management of patients with structural heart disease and refractory ventricular arrhythmias. Despite detailed mapping and ablation from the endocardium, nearly a third of VT circuits remain inaccessible. Pericardial...

journal_title：Journal of cardiovascular electrophysiology

authors： Tedrow U,Stevenson WG

更新日期：2009-06-01 00:00:00

abstract：INTRODUCTION:Longer observational time and adenosine challenge have proven to be able to detect pulmonary vein (PV) reconnections. The aim of this study was to assess incidence of spontaneous and adenosine-induced PV reconnection after ablation with second-generation cryoballoon (CB-Adv). METHODS AND RESULTS:Fifty con...

journal_title：Journal of cardiovascular electrophysiology

authors： Ciconte G,Chierchia GB,DE Asmundis C,Sieira J,Conte G,Juliá J,DI Giovanni G,Wauters K,Baltogiannis G,Saitoh Y,Mugnai G,Catanzariti D,Tondo C,Brugada P

更新日期：2014-08-01 00:00:00

abstract：INTRODUCTION:Patients with bradycardia requiring permanent pacing frequently suffer from additional atrial tachyarrhythmias (ATs). This study evaluated the safety and efficacy of atrial antitachycardia pacing (ATP) and the performance of pacing for AT prevention implemented into a new pacemaker. METHODS AND RESULTS:In...

journal_title：Journal of cardiovascular electrophysiology

authors： Israel CW,Hügl B,Unterberg C,Lawo T,Kennis I,Hettrick D,Hohnloser SH,AT500 Verification Study Investigators.

更新日期：2001-10-01 00:00:00

abstract：:Dual chamber pacemakers have inbuilt advanced safety systems such as ventricular safety standby (crosstalk detection) to prevent ventricular oversensing resulting in inappropriate pacing inhibition. We describe a case where this safety mechanism does not reliably work and the management required to rectify the situati...

journal_title：Journal of cardiovascular electrophysiology

authors： Haldar SK,Steed B,Watkins S,Nair K

更新日期：2017-05-01 00:00:00

abstract：INTRODUCTION:ATP-sensitive K+ channels (K(ATP)) are expressed abundantly in cardiovascular tissues. Blocking this channel in experimental models of ischemia can reduce arrhythmias. We investigated the acute effects of amiodarone on the activity of cardiac sarcolemmal K(ATP) channels and their sensitivity to ATP. METHO...

journal_title：Journal of cardiovascular electrophysiology

authors： Holmes DS,Sun ZQ,Porter LM,Bernstein NE,Chinitz LA,Artman M,Coetzee WA

更新日期：2000-10-01 00:00:00

abstract：:Syncope is frequently neurally mediated and can seriously affect quality of life. Different ablation strategies have been successfully performed. These approaches have not gained wide acceptance and are quite extensive and complex, exposing patients to significant risks. This article reports the case of a 16-year-old ...

journal_title：Journal of cardiovascular electrophysiology

authors： Debruyne P

更新日期：2016-09-01 00:00:00

abstract：INTRODUCTION:Hyperventilation has been demonstrated to alter autonomic function. Sympathomimetic drugs (isoproterenol) and parasympatholytic drugs (atropine) may be needed to facilitate induction of supraventricular tachycardia (SVT). The aim of this study was to test the clinical utility and mechanisms of hyperventila...

journal_title：Journal of cardiovascular electrophysiology

authors： Chen CC,Chen SA,Tai CT,Kuo TB,Chang MS,Prystowsky EN

更新日期：2001-11-01 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:We investigated the spread of the excitation wave over the atria following initiation in a given focus in an atrial model containing its overall geometry only, i.e., without atrial bundles. METHODS AND RESULTS:The propagation velocity of the excitation wave was taken to be uniform, and the wall thickness ...

journal_title：Journal of cardiovascular electrophysiology

authors： van Dam PM,van Oosterom A

更新日期：2003-10-01 00:00:00

abstract：INTRODUCTION:Decreased heart rate variability (HRV) and abnormal nonlinear HRV shortly after myocardial infarction (MI) are risk factors for mortality. Traditional HRV predicts mortality in patients with a range of times post-MI, but the association of nonlinear HRV and outcome in this population is unknown. METHODS A...

journal_title：Journal of cardiovascular electrophysiology

authors： Stein PK,Domitrovich PP,Huikuri HV,Kleiger RE,Cast Investigators.

更新日期：2005-01-01 00:00:00

abstract：INTRODUCTION:We assessed findings in cardiac magnetic resonance (CMR) as predictors of ventricular tachycardia (VT) after myocardial infarction (MI), which could allow for more precise identification of patients at risk of sudden cardiac death. METHODS:Forty-eight patients after prior MI were enrolled and divided into...

journal_title：Journal of cardiovascular electrophysiology

authors： Malaczynska-Rajpold K,Blaszyk K,Kociemba A,Pyda M,Posadzy-Malaczynska A,Grajek S

更新日期：2020-06-01 00:00:00

abstract：BACKGROUND:Successful anticoagulation is critical for stroke prevention in adults with atrial fibrillation (AF). Anticoagulation satisfaction is a key indicator of treatment success. While physical, cognitive, and psychosocial limitations are common in elderly AF patients, their associations with anticoagulation satisf...

journal_title：Journal of cardiovascular electrophysiology

authors： Wang W,Saczynski J,Lessard D,Mailhot T,Barton B,Waring ME,Sogade F,Hayward R,Helm R,McManus DD

更新日期：2019-11-01 00:00:00

abstract：INTRODUCTION:Deficiency of testosterone was associated with the susceptibility of atrial fibrillation (AF). Angiotensin-II (AngII) receptor antagonists were shown to reduce AF by improving atrial electrical remodeling. This study investigated the effects and mechanism of valsartan, an AngII receptor antagonist, on the ...

journal_title：Journal of cardiovascular electrophysiology

authors： Sun YL,Li PH,Shi L,Su WZ,Li DS,Xue GL,Zhao Y,Li CZ,Li Y,Zhou Y,Li SX,Zhang Y,Lu YJ,Pan ZW

更新日期：2018-10-01 00:00:00

abstract：INTRODUCTION:Accurate identification of slow conducting regions in patients with scar-related atrial tachycardia (AT) is difficult using conventional electrogram annotation for cardiac electroanatomic mapping (EAM). Estimating delays between neighboring mapping sites is a potential option for activation map computation...

journal_title：Journal of cardiovascular electrophysiology

authors： Vicera JJB,Lin YJ,Lee PT,Chang SL,Lo LW,Hu YF,Chung FP,Lin CY,Chang TY,Tuan TC,Chao TF,Liao JN,Wu CI,Liu CM,Lin CH,Chuang CM,Chen CC,Chin CG,Liu SH,Cheng WH,Tai LP,Huang SH,Chou CY,Lugtu I,Liu CH,Chen SA

更新日期：2020-06-01 00:00:00

abstract：INTRODUCTION:Pulmonary vein isolation (PVI) is the cornerstone ablation strategy for treatment of atrial fibrillation (AF). Ablation outside the PVs is sometimes needed particularly in persistent or longstanding AF. This study reported left atrial appendage isolation (LAAI) using cryoballoon (CB) focusing on technical ...

journal_title：Journal of cardiovascular electrophysiology

authors： Chen S,Schmidt B,Bordignon S,Perrotta L,Bologna F,Nagase T,Chun KRJ

更新日期：2019-02-01 00:00:00

abstract：:The evidence that antiarrhythmic compounds that act by slowing conduction velocity increase mortality in patients with cardiac disease is now compelling. Emphasis is now shifting to agents that act by lengthening repolarization and have additional antiadrenergic properties. There is preliminary evidence that pure Clas...

journal_title：Journal of cardiovascular electrophysiology

authors： Singh BN

更新日期：1995-10-01 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：INTRODUCTION:Isoproterenol is used to assess and facilitate AV nodal conduction, and thus potentiate the induction of supraventricular arrhythmias. It is commonly administered in increasing doses until a predetermined decrease in sinus cycle length, usually 20% to 30%, occurs. This regimen may result in undesirable sid...

journal_title：Journal of cardiovascular electrophysiology

authors： Cossú SF,Rothman SA,Chmielewski IL,Hsia HH,Vogel RL,Miller JM,Buxton AE

更新日期：1997-08-01 00:00:00

abstract：BACKGROUND:Cardiac resynchronization therapy (CRT) is commonly used to manage heart failure, yet published guidelines do not distinguish between recommendations for pacemakers (CRT-P) and defibrillators (CRT-D) despite significant differences in size, longevity, and cost between these devices. The purpose of this study...

journal_title：Journal of cardiovascular electrophysiology

authors： Munir MB,Althouse AD,Rijal S,Shah MB,Abu Daya H,Adelstein E,Saba S

更新日期：2016-06-01 00:00:00