16,341 results match your criteria Atrial Tachycardia


Mechanism, underlying substrate and predictors of atrial tachycardia following atrial fibrillation ablation using the second-generation cryoballoon.

J Cardiol 2019 Mar 13. Epub 2019 Mar 13.

University Heart Center Lübeck, Medical Clinic II (Department of Cardiology, Angiology and Intensive Care Medicine), University Hospital Schleswig-Holstein, Luebeck, Germany. Electronic address:

Background: Data regarding atrial tachycardia (AT) following second-generation cryoballoon ablation (CBA) of atrial fibrillation (AF) are limited.

Aim: To describe the incidence, mechanisms, and clinical predictors of ATs following CBA.

Methods And Results: In this retrospective single-center study 238 patients undergoing CBA for treatment of paroxysmal (91/238; 38. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.jjcc.2019.02.006DOI Listing

Cardiac Rhythm Disturbances in Heterotaxy Syndrome.

Pediatr Cardiol 2019 Mar 14. Epub 2019 Mar 14.

Department of Pediatrics, University of Tokyo Hospital, Tokyo, Japan.

Objective: Heterotaxy syndrome is associated with complex cardiac malformations and cardiac conduction system abnormalities. Those with right atrial isomerism (RAI) have dual sinus nodes and dual atrioventricular nodes predisposing them to supraventricular tachycardia (SVT). Those with left atrial isomerism (LAI) lack a normal sinus node and are at risk of sinus node dysfunction (SND) and atrioventricular block (AV block). Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1007/s00246-019-02087-2DOI Listing

A comparison of oral flecainide and amiodarone for the treatment of recurrent supraventricular tachycardia in children.

Pacing Clin Electrophysiol 2019 Mar 15. Epub 2019 Mar 15.

Division of Cardiology, Children's Hospital Los Angeles; and Keck School of Medicine, University of Southern California, Los Angeles, CA.

Background: Supraventricular tachycardia (SVT) in children can be difficult to treat when first-line therapies (beta-blockade or digoxin) are not effective. Both flecainide and amiodarone are used as second-line therapies. We sought to compare the efficacy and safety of flecainide and amiodarone in pediatric patients with recurrent SVT. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1111/pace.13662DOI Listing

Effect of Catheter Ablation vs Antiarrhythmic Medication on Quality of Life in Patients With Atrial Fibrillation: The CAPTAF Randomized Clinical Trial.

JAMA 2019 Mar;321(11):1059-1068

Department of Medical Science and Cardiology, Uppsala University, Uppsala, Sweden.

Importance: Quality of life is not a standard primary outcome in ablation trials, even though symptoms drive the indication.

Objective: To assess quality of life with catheter ablation vs antiarrhythmic medication at 12 months in patients with atrial fibrillation.

Design, Setting, And Participants: Randomized clinical trial at 4 university hospitals in Sweden and 1 in Finland of 155 patients aged 30-70 years with more than 6 months of atrial fibrillation and treatment failure with 1 antiarrhythmic drug or β-blocker, with 4-year follow-up. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1001/jama.2019.0335DOI Listing

Cardiac Arrhythmias in Horses.

Authors:
Gunther van Loon

Vet Clin North Am Equine Pract 2019 Mar 11. Epub 2019 Mar 11.

Department of Large Animal Internal Medicine, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, Merelbeke 9820, Belgium. Electronic address:

Arrhythmias are common in horses. Sinus arrhythmia and first- and second-degree atrioventricular block are frequently found physiologic arrhythmias, but should immediately disappear after stress or exercise. Atrial premature depolarizations are usually not associated with poor performance, but are a potential trigger for atrial fibrillation. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.cveq.2018.12.004DOI Listing

Regional Variation in RBM20 Causes a Highly Penetrant Arrhythmogenic Cardiomyopathy.

Circ Heart Fail 2019 Mar;12(3):e005371

Division of Cardiovascular Medicine, Department of Medicine (V.N.P., C.C., C.R., M.T.W., E.A.A.), Stanford University School of Medicine, CA.

Background Variants in the cardiomyocyte-specific RNA splicing factor RBM20 have been linked to familial cardiomyopathy, but the causative genetic architecture and clinical consequences of this disease are incompletely defined. Methods and Results To define the genetic architecture of RBM20 cardiomyopathy, we first established a database of RBM20 variants associated with cardiomyopathy and compared these to variants observed in the general population with respect to their location in the RBM20 coding transcript. We identified 2 regions significantly enriched for cardiomyopathy-associated variants in exons 9 and 11. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1161/CIRCHEARTFAILURE.118.005371DOI Listing

Electrophysiological and Anatomical Correlates of Sites With Postpacing Intervals Shorter Than Tachycardia Cycle Length in Atypical Atrial Flutter.

Circ Arrhythm Electrophysiol 2019 Mar;12(3):e006955

Cardiology Division, University Hospitals of Geneva (N.J., D.C.S., P.B.D., M.N.).

Background Although entrainment mapping is an established approach to atypical atrial flutter ablation, postpacing intervals shorter than tachycardia cycle length (difference between postpacing interval and tachycardia cycle length [dPPI] <0 ms) remain of unknown significance. We sought to compare anatomic and electrophysiological properties of sites with dPPI <0, dPPI=0-30, and dPPI >30 ms. Methods We studied 24 noncavotricuspid isthmus-dependent macroreentrant atypical atrial flutter in 19 consecutive patients. Read More

View Article

Download full-text PDF

Source
https://www.ahajournals.org/doi/10.1161/CIRCEP.118.006955
Publisher Site
http://dx.doi.org/10.1161/CIRCEP.118.006955DOI Listing
March 2019
3 Reads

Back to the Future.

Circ Arrhythm Electrophysiol 2019 Mar;12(3):e007258

The Heart and Vascular Institute of the University of Pittsburgh Medical Center, PA.

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1161/CIRCEP.119.007258DOI Listing

A Review of Commonly Prescribed Antiarrhythmics: Primer for Primary Care Providers, a Case Based Approach.

S D Med 2019 Feb;72(2):80-87

Department of Cardiovascular Disease, University of South Dakota Sanford School of Medicine, Sioux Falls, South Dakota.

The incidence of atrial fibrillation has been steadily increasing as our average population continues to age. In addition, many patients with structural heart disease are on antiarrhythmic drugs for prevention of ventricular tachycardia. General practitioners have a large role in co-management of patients with cardiac disease. Read More

View Article

Download full-text PDF

Source
February 2019

The quality of ECG data acquisition, and diagnostic performance of a novel adhesive patch for ambulatory cardiac rhythm monitoring in arrhythmia detection.

J Electrocardiol 2019 Feb 28;54:28-35. Epub 2019 Feb 28.

Innovation Department, Arçelik A.Ş., Istanbul, Turkey.

Background: Short and long ambulatory electrocardiographic monitoring with different systems is a widely used method to detect cardiac arrhythmias. In this study, we aimed to evaluate the effectiveness of a novel monitoring device on cardiac arrhythmia detection.

Methods: We used two different protocols to evaluate device performance. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.jelectrocard.2019.02.012DOI Listing
February 2019
2 Reads

A REGULAR WIDE QRS COMPLEX TACHYCARDIA: WHAT IS THE MECHANISM?

J Cardiovasc Electrophysiol 2019 Mar 7. Epub 2019 Mar 7.

Arrhythmia Unit, Department of Cardiology, Hospital Virgen de la Salud, Toledo, Spain.

A 14-year-old girl with a history of recurrent palpitations and documented wide QRS complex tachycardia was referred for electrophysiologic study and catheter ablation. This article is protected by copyright. All rights reserved. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1111/jce.13905DOI Listing
March 2019
1 Read

Subclinical Thyroid Dysfunction was not Associated with Cardiac Arrhythmias in a Cross-Sectional Analysis of the ELSA-Brasil Study.

Arq Bras Cardiol 2019 Feb 28. Epub 2019 Feb 28.

Serviço de Endocrinologia e Metabologia do Hospital das Clínicas da Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, MG - Brazil.

Background: The association of subclinical thyroid dysfunction (STD) with cardiac arrhythmias remains controversial, particularly in the non-elderly population.

Objective: To investigate whether STD was associated with cardiac arrhythmias in a cohort of middle-aged and older adults.

Methods: Baseline data of the Longitudinal Study of Adult Health, ELSA-Brasil (35-74 years) were collected from 2008 to 2010. Read More

View Article

Download full-text PDF

Source
http://www.gnresearch.org/doi/10.5935/abc.20190037
Publisher Site
http://dx.doi.org/10.5935/abc.20190037DOI Listing
February 2019
3 Reads

QT as a predictor of recurrence after atrial fibrillation ablation and the impact of amiodarone: results from the placebo-controlled AMIO-CAT trial.

Europace 2019 Mar 6. Epub 2019 Mar 6.

Department of Cardiology, Copenhagen University Hospital, Rigshospitalet, Blegdamsvej 9, 2100 København, Denmark.

Aims: Prolonged corrected QT interval (QTc) might be associated with arrhythmia recurrence after atrial fibrillation (AF) ablation. The effect of short-term amiodarone in this setting remains unknown. This study seeks to quantify short-term amiodarone's impact on QTc, and to investigate QTc and amiodarone treatment as predictors of recurrence of arrhythmia after ablation. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1093/europace/euz028DOI Listing
March 2019
2 Reads

A Retrograde Transaortic/Transmitral Approach for Radiofrequency Ablation of Adenosine-Sensitive Atrial Tachycardia Arising Near the Apex of Koch's Triangle: A Case Study Approach and Review of the Literature.

Cardiol Res 2019 Feb 24;10(1):48-53. Epub 2019 Feb 24.

Department of Cardiology and Angiology, Augusta-Kranken-Anstalt, Bergstrasse 26, 44791 Bochum, Germany.

Atrial tachycardias (ATs) are relatively uncommon and their mechanisms include reentry or may be focal. The characteristics and radiofrequency (RF) ablation of adenosine-sensitive AT arising near the apex of Koch's triangle have been reported. We report a case of successful RF ablation of this tachycardia by using a retrograde transaortic/transmitral approach. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.14740/cr806DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6396805PMC
February 2019

Light and shadows of atrial fibrillation ablation using a cryoballoon.

Authors:
Masahiko Goya

J Cardiol 2019 Feb 28. Epub 2019 Feb 28.

Department of Cardiovascular Medicine, Tokyo Medical and Dental University, Tokyo, Japan. Electronic address:

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.jjcc.2019.01.004DOI Listing
February 2019
1 Read

Mechanisms of Arrhythmia and Sudden Cardiac Death in Patients With HIV Infection.

Can J Cardiol 2019 Mar 15;35(3):310-319. Epub 2018 Dec 15.

Research Center, Montreal Heart Institute, Montréal, Québec, Canada; Faculty of Pharmacy, Université de Montréal, Montréal, Québec, Canada. Electronic address:

Long-term survival of HIV-infected patients has significantly improved with the use of antiretroviral therapy (ART). As a consequence, cardiovascular diseases are now emerging as an important clinical problem in this population. Sudden cardiac death is the third leading cause of mortality in HIV patients. Read More

View Article

Download full-text PDF

Source
https://linkinghub.elsevier.com/retrieve/pii/S0828282X183137
Publisher Site
http://dx.doi.org/10.1016/j.cjca.2018.12.015DOI Listing
March 2019
4 Reads

Limitations of 12-lead electrocardiogram wide complex tachycardia algorithms in a patient with left atrial flutter and large myocardial infarction.

HeartRhythm Case Rep 2019 Feb 12;5(2):70-73. Epub 2018 Apr 12.

UCLA Cardiac Arrhythmia Center, David Geffen School of Medicine at UCLA, Los Angeles, California.

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.hrcr.2018.04.001DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6379568PMC
February 2019
2 Reads

Implications of atrial volumes in surgical corrected Tetralogy of Fallot on clinical adverse events.

Int J Cardiol 2019 Feb 11. Epub 2019 Feb 11.

Fondazione G. Monasterio CNR-Regione Toscana, Pisa, Italy.

Background: While left atrial (LA) size has been shown as a strong predictor of cardiovascular diseases in various studies, the role of right atrial (RA) enlargement, especially in the growing population of patients with congenital heart diseases (CHD) is largely unknown. We sought to evaluate (1) RA and LA volumes in patients with repaired Tetralogy of Fallot (TOF) and assess correlations to (2) functional parameters and (3) clinical adverse events.

Methods: 169 patients with repaired TOF were enrolled following a targeted protocol for Cardiovascular magnetic resonance imaging (CMR), Cardiopulmonary exercise tests (CPET), Echocardiography and Measurement of NT-proBNP. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.ijcard.2019.02.018DOI Listing
February 2019

Evolution of Post-Pulmonary Vein Isolation Atrial Fibrillation Inducibility at Redo Ablation: Electrophysiological Evidence of Extra-Pulmonary Vein Substrate Progression.

Heart Rhythm 2019 Feb 25. Epub 2019 Feb 25.

Cardiology Division, Geneva University Hospitals, Geneva, Switzerland.

Background: The electrophysiological substrate underlying atrial fibrillation (AF) progression remains difficult to identify.

Objective: To study the evolution of post-pulmonary vein isolation (PVI) AF inducibility (AFI) after AF ablation, and compare patients with recurrence as organized atrial tachycardia (OATr) vs paroxysmal (pAF) and persistent AF (peAF).

Methods: We studied 99 patients who underwent de novo AF ablation (p1) and redo (p2) for recurrent AF (AFr) or OATr. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.hrthm.2019.02.026DOI Listing
February 2019

Antiarrhythmic and proarrhythmic effects of subcutaneous nerve stimulation in ambulatory dogs.

Heart Rhythm 2019 Feb 25. Epub 2019 Feb 25.

Krannert Institute of Cardiology and Division of Cardiology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana. Electronic address:

Background: High output subcutaneous nerve stimulation (ScNS) remodels the stellate ganglia and suppresses cardiac arrhythmia.

Objective: To test the hypothesis that long duration low output ScNS causes cardiac nerve sprouting, increases plasma norepinephrine concentration and the durations of paroxysmal atrial tachycardia (PAT) in ambulatory dogs.

Methods: We prospectively randomized 22 dogs (11 males and 11 females) into 5 different output groups for 2 months of ScNS: 0 mA (sham) (N=6), 0. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.hrthm.2019.02.027DOI Listing
February 2019

Fetal arrhythmias: Diagnosis and management.

Indian Pacing Electrophysiol J 2019 Feb 25. Epub 2019 Feb 25.

Department of Pediatrics, Oregon Health & Science University, Portland, OR, USA.

This article reviews important features for improving the diagnosis and management of fetal arrhythmias. The normal fetal heart rate ranges between 110 and 160 beats per minute. A fetal heart rate is considered abnormal if the heart rate is beyond the normal ranges or the rhythm is irregular. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.ipej.2019.02.007DOI Listing
February 2019
1 Read

Differential Effectiveness of Landiolol Between Atrial Fibrillation and Atrial Flutter/Atrial Tachycardia Patients With Left Ventricular Dysfunction.

Circ J 2019 Feb 28. Epub 2019 Feb 28.

Department of Cardiovascular Medicine, Nippon Medical School.

Background: Landiolol, an ultra-short acting β-selective blocker, is more effective for controlling the heart rate (HR) than digoxin in patients with atrial tachyarrhythmias and left ventricular (LV) dysfunction. The impact of the type of atrial tachyarrhythmias on the effectiveness of landiolol is uncertain. We evaluated the efficacy and safety of landiolol on tachycardiac atrial fibrillation (AF) and tachycardiac atrial flutter/atrial tachycardia (AFl/AT) in patients with reduced LV function. Read More

View Article

Download full-text PDF

Source
https://www.jstage.jst.go.jp/article/circj/advpub/0/advpub_C
Publisher Site
http://dx.doi.org/10.1253/circj.CJ-18-1131DOI Listing
February 2019
2 Reads

Skin sympathetic nerve activity and the temporal clustering of cardiac arrhythmias.

JCI Insight 2019 Feb 21;4(4). Epub 2019 Feb 21.

Krannert Institute of Cardiology, Division of Cardiology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana, USA.

Background: Simultaneous noninvasively recorded skin sympathetic nerve activity (SKNA) and electrocardiogram (neuECG) can be used to estimate cardiac sympathetic tone. We tested the hypothesis that large and prolonged SKNA bursts are associated with temporal clustering arrhythmias.

Methods: We recorded neuECG in 10 patients (69 ± 10 years old) with atrial fibrillation (AF) episodes and in 6 patients (50 ± 13 years old) with ventricular tachycardia (VT) or fibrillation (VF) episodes. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1172/jci.insight.125853DOI Listing
February 2019

Congenital Aneurysm of the Right Atrium: Two Cases Report.

Braz J Cardiovasc Surg 2019 Jan-Feb;34(1):104-106

Instituto do Coração de Pernambuco, Real Hospital Português de Beneficência, Recife, PE, Brazil.

Congenital aneurysm or enlargement of the right atrium is a rare condition. Two children operated on at the age of 14 months and 11 years old for congenital aneurysm of the right atrium are reported. Both presented cardiomegaly and symptoms of paroxysmal supraventricular tachycardia. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.21470/1678-9741-2018-0047DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6385824PMC
March 2019
1 Read

Assessing Accuracy of Wrist-Worn Wearable Devices in Measurement of Paroxysmal Supraventricular Tachycardia Heart Rate.

Korean Circ J 2019 Feb 11. Epub 2019 Feb 11.

Division of Cardiology, Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.

Background And Objectives: Wrist-worn wearable devices provide heart rate (HR) monitoring function via photoplethysmography technology. Recently, these devices have been used by patients to measure the HR when palpitation occurs, but few validation studies of these instruments have been conducted. We assessed the accuracy of these devices for measuring a HR. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.4070/kcj.2018.0323DOI Listing
February 2019
1 Read

One stage atrioventricular nodal ablation and leadless pacemaker implantation for refractory atrial fibrillation.

J Arrhythm 2019 Feb 1;35(1):139-141. Epub 2018 Nov 1.

Cardiac Health Heart Centred and Cardiology Division Department of Medicine Queen Mary Hospital The University of Hong Kong Hong Kong China.

Atrioventricular nodal (AVN) ablation and right ventricular (RV) pacing is recommended for refractory atrial fibrillation (AF) and tachycardia-bradycardia syndrome. Three AF patients (mean age 83, range 79-89 years) underwent AVN ablation and transvenous leadless pacemaker Micra implantations using the same venous access without anticoagulation interruption. Satisfactory pacing 0. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1002/joa3.12129DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6373659PMC
February 2019
1 Read

Development, in vitro validation and human application of a novel method to identify arrhythmia mechanisms: The stochastic trajectory analysis of ranked signals mapping method.

J Cardiovasc Electrophysiol 2019 Feb 24. Epub 2019 Feb 24.

Electrophysiology Department, The Barts Heart Centre, Barts Health NHS trust, London, United Kingdom.

Introduction: Stochastic trajectory analysis of ranked signals (STAR) is a novel method for mapping arrhythmia. The aim was to describe its development and validation as a mapping tool.

Methods And Results: The method ranks electrodes in terms of the proportion of the time they lead relative to neighboring electrodes and ascribes a predominant direction of activation between electrodes. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1111/jce.13882DOI Listing
February 2019
1 Read

Two consecutive ATs demonstrating a centrifugal pattern; What is the mechanism?

J Cardiovasc Electrophysiol 2019 Feb 24. Epub 2019 Feb 24.

Bordeaux University Hospital (CHU), Cardiac Electrophysiology and Cardiac Stimulation Team, IHU Liryc, Electrophysiology and Heart Modeling Institute, fondation Bordeaux Université, Bordeaux, France.

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1111/jce.13883DOI Listing
February 2019
3 Reads

Scar identification, quantification, and characterization in complex atrial tachycardia: a path to targeted ablation?

Europace 2019 Jan;21(Supplement_1):i21-i26

Service de Cardiologie, Centre Hospitalier Princesse Grace, Avenue Pasteur, Monaco.

Successful catheter ablation of scar-related atrial tachycardia depends on correct identification of the critical isthmus. Often, this is a represented by a small bundle of viable conducting tissue within a low-voltage area. It's identification depends on the magnitude of the signal/noise ratio. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1093/europace/euy182DOI Listing
January 2019
2 Reads

An initial experience of high-density mapping-guided ablation in a cohort of patients with adult congenital heart disease.

Europace 2019 Jan;21(Supplement_1):i43-i53

Department of Cardiology, Royal Brompton and Harefield Hospital, Imperial College London, Sydney Street, SW3 6NP London, UK.

Aims: In the management of both ventricular and supraventricular tachycardia in patients with congenital heart disease (CHD) catheter ablation has now been recognized as one of the mainstays.

Methods And Results: We review our initial experience of using the Rhythmia mapping system in a cohort of 12 adult CHD patients presenting with multiple arrhythmia substrates. A total of 78 arrhythmia maps were attempted in a total of 15 procedures, but possible due to the dilatation of the target chamber only 44% of maps were able to reconstruct the entire arrhythmia. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1093/europace/euy188DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6388091PMC
January 2019
2 Reads

Digitalis therapy is associated with higher comorbidities and poorer prognosis in patients undergoing ablation of atrial arrhythmias: data from the German Ablation Registry.

Clin Res Cardiol 2019 Feb 23. Epub 2019 Feb 23.

Clinic for Cardiology II - Electrophysiology, University of Münster, Münster, Germany.

Background: Digitalis glycosides are employed for rate control of atrial fibrillation. Recent studies suggested potential harmful effects of digitalis monotherapy and combination with antiarrhythmic drugs. The aim of the present study was to assess the prevalence and potential impact of digitalis therapy on outcome in patients undergoing catheter ablation of supraventricular arrhythmias. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1007/s00392-019-01442-wDOI Listing
February 2019

Sacubitril/valsartan reduces ventricular arrhythmias in parallel with left ventricular reverse remodeling in heart failure with reduced ejection fraction.

Clin Res Cardiol 2019 Feb 20. Epub 2019 Feb 20.

Department of Cardiology, Ziekenhuis Oost-Limburg, Schiepse Bos 6, 3600, Genk, Belgium.

Background: Sacubitril/valsartan reduced the occurrence of sudden cardiac death in the PARADIGM-HF trial. However, limited information is available about the mechanism.

Methods: Heart failure (HF)-patients receiving sacubitril/valsartan for a class-I indication equipped with an implantable cardioverter defibrillator (ICD) or cardiac resynchronization therapy (CRT) with remote tele-monitoring were retrospectively analyzed. Read More

View Article

Download full-text PDF

Source
http://link.springer.com/10.1007/s00392-019-01440-y
Publisher Site
http://dx.doi.org/10.1007/s00392-019-01440-yDOI Listing
February 2019
6 Reads

Importance of the vein of Marshall involvement in mitral isthmus ablation.

Pacing Clin Electrophysiol 2019 Feb 19. Epub 2019 Feb 19.

Department of Cardiology, Keio University School of Medicine, Tokyo, Japan.

Background: Epicardiac conduction via the vein of Marshall (VOM) can bypass the mitral isthmus (MI) line, making MI ablation difficult. This study aimed to assess the contribution of the VOM in achieving MI conduction block.

Methods: This study included 143 consecutive patients with non-paroxysmal atrial fibrillation who underwent initial MI ablation. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1111/pace.13640DOI Listing
February 2019
3 Reads

Cardiac Effects of a Single Dose of Pimobendan in Cats With Hypertrophic Cardiomyopathy; A Randomized, Placebo-Controlled, Crossover Study.

Front Vet Sci 2019 4;6:15. Epub 2019 Feb 4.

Department of Medicine and Epidemiology, School of Veterinary Medicine, University of California, Davis, Davis, CA, United States.

Pimobendan has been shown to impart a significant survival benefit in cardiomyopathic cats who receive it as part of heart failure therapy. However, use of pimobendan remains controversial in cats with hypertrophic cardiomyopathy (HCM) due to lack of pharmacodynamic data for pimobendan in cats with HCM and due to theoretical concerns for exacerbating left ventricular outflow tract obstructions. Our objective was to investigate the cardiac effects of pimobendan in cats with HCM. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.3389/fvets.2019.00015DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6369151PMC
February 2019
1 Read

Wide QRS Tachycardia in a Man With a Medical History of Atrial Fibrillation.

JAMA Intern Med 2019 Feb 18. Epub 2019 Feb 18.

UPMC Heart and Vascular Institute, Division of Cardiac Electrophysiology, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania.

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1001/jamainternmed.2018.8603DOI Listing
February 2019

Characterization of the Mechanism and Substrate of Atrial Tachycardia Using Ultra-High-Density Mapping in Adults With Congenital Heart Disease: Impact on Clinical Outcomes.

J Am Heart Assoc 2019 Feb;8(4):e010535

1 Royal Brompton and Harefield NHS Foundation Trust London United Kingdom.

Background Atrial tachycardia ( AT ) is common in patients with adult congenital heart disease and is challenging to map and ablate. We used ultra-high-density mapping to characterize the AT mechanism and investigate whether substrate characteristics are related to ablation outcomes. Methods and Results A total of 50 AT s were mapped with ultra-high-density mapping in 23 procedures. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1161/JAHA.118.010535DOI Listing
February 2019
1 Read

Risk of cardiac arrhythmias after electrical accident: a single-center study of 480 patients.

Clin Res Cardiol 2019 Feb 15. Epub 2019 Feb 15.

Semmelweis University Heart and Vascular Centre, Városmajor u. 68, Budapest, 1122, Hungary.

Objective: Patients with electrical injury are considered to be at high risk of cardiac arrhythmias. Due to the small number of studies, there is no widely accepted guideline regarding the risk assessment and management of arrhythmic complications after electrical accident (EA). Our retrospective observational study was designed to determine the prevalence of ECG abnormalities and cardiac arrhythmias after EA, to evaluate the predictive value of cardiac biomarkers for this condition and to assess in-hospital and 30-day mortality. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1007/s00392-019-01420-2DOI Listing
February 2019
1 Read

Differential presentation of atrioventricular nodal re-entrant tachycardia in athletes and non-athletes.

Europace 2019 Feb 14. Epub 2019 Feb 14.

Department of Cardiology, University Hospital Antwerp, Wilrijkstraat 10, Edegem, Belgium.

Aims: Prolonged participation in exercise results in structural and electrical cardiac remodelling. The development of an athlete's heart is recognized as a risk factor for atrial arrhythmias. This study aims to evaluate the impact of athlete heart remodelling on the presentation of atrioventricular nodal re-entrant tachycardia (AVNRT). Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1093/europace/euz001DOI Listing
February 2019
2 Reads

Aggravation of atrial arrhythmia by amiodarone during the perinatal period: A case report.

Medicine (Baltimore) 2019 Feb;98(7):e14466

Department of Cardiology, Wenzhou People's Hospital, Wenzhou Third Clinical Institute Affiliated with Wenzhou Medical University, Wenzhou, Zhejiang, China.

Rationale: Amiodarone, a broad-spectrum antiarrhythmic drug, is widely used for the clinical treatment of tachyarrhythmias because of its safety and efficacy.

Patient Concerns: A 30-year-old woman presented with known paroxysmal atrial tachycardia and severe preeclampsia. Two days before admission, she had given birth to twins. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1097/MD.0000000000014466DOI Listing
February 2019
1 Read

Prognostic impact of recurrences of ventricular tachyarrhythmias and appropriate ICD therapies in a high-risk ICD population.

Clin Res Cardiol 2019 Feb 12. Epub 2019 Feb 12.

First Department of Medicine, Faculty of Medicine Mannheim, European Center for AngioScience (ECAS), and DZHK, University Medical Centre Mannheim (UMM), University of Heidelberg, German Center for Cardiovascular Research) partner site Heidelberg/Mannheim, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Germany.

Purpose: The study sought to evaluate the prognostic impact of recurrences of ventricular tachyarrhythmias in consecutive ICD recipients with ventricular tachyarrhythmias on admission.

Methods: All consecutive patients surviving at least one episode of ventricular tachyarrhythmias from 2002 to 2016 and discharged with an ICD (pre-existing ICD or ICD implantation at index hospitalization) were included. The primary endpoint was all-cause mortality according to the presence or absence of recurrences of ventricular tachyarrhythmias at 5 years. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1007/s00392-019-01416-yDOI Listing
February 2019
1 Read
4.560 Impact Factor

Expression of miRNAs in circulating exosomes derived from patients with persistent atrial fibrillation.

FASEB J 2019 Feb 12:fj201801758R. Epub 2019 Feb 12.

Division of Cardiology, Yonsei University College of Medicine, Seoul, South Korea.

Atrial fibrillation (AF), the most common type of cardiac arrhythmia, is thought to be regulated by changes in microRNA (miRNA) expression. However, the evidence for this is inconsistent. The high stability and expression of circulating exosomal miRNAs may allow their use as candidate biomarkers. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1096/fj.201801758RDOI Listing
February 2019
1 Read

A Decision Tree-Based Survival Analysis of Patients with a History of Inappropriate Implantable Cardioverter-Defibrillator Therapy.

Int Heart J 2019 Feb 8. Epub 2019 Feb 8.

Department of Cardiology, Fujita Health University School of Medicine.

Implantable cardioverter-defibrillators (ICDs) improve survival in patients who are at risk of sudden death. However, inappropriate therapy is commonly given to ICD recipients, and this situation may be associated with an increased risk of death. This study aimed to construct a risk stratification scheme by using decision tree analysis in patients who received inappropriate ICD therapy. Read More

View Article

Download full-text PDF

Source
https://www.jstage.jst.go.jp/article/ihj/advpub/0/advpub_18-
Publisher Site
http://dx.doi.org/10.1536/ihj.18-288DOI Listing
February 2019
6 Reads

Year in Review in Cardiac Electrophysiology.

Circ Arrhythm Electrophysiol 2019 Feb;12(2):e007142

Department of Cardiovascular Medicine, Mayo Clinic College of Medicine, Rochester, MN (M.M., S.K.).

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1161/CIRCEP.118.007142DOI Listing
February 2019
2 Reads

Electroanatomic mapping-guided catheter ablation of atrial tachycardia in children with limited/zero fluoroscopy.

Pacing Clin Electrophysiol 2019 Feb 10. Epub 2019 Feb 10.

Department of Pediatric Cardiology/Electrophysiology, Istanbul Medipol University Hospital, Istanbul, Turkey.

Introduction: Atrial tachycardia (AT) is an uncommon cause of supraventricular tachycardia in children and it is often resistant to medical therapy. Catheter ablation can be curative in children with AT. However, experience of ablation of pediatric AT is still very limited. Read More

View Article

Download full-text PDF

Source
http://doi.wiley.com/10.1111/pace.13619
Publisher Site
http://dx.doi.org/10.1111/pace.13619DOI Listing
February 2019
8 Reads

Fetal dysrhythmias.

Best Pract Res Clin Obstet Gynaecol 2019 Jan 9. Epub 2019 Jan 9.

Royal Brompton and Harefield NHS Foundation Trust, Sydney Street, London, SW3 6NP, UK; Fetal Medicine Unit, St George's University Hospital, Blackshaw Road, London, SW17 0QT, UK; Molecular and Clinical Sciences Research Institute, St George's, University of London, Cranmer Terrace, London, SW17 0RE, UK. Electronic address:

Fetal dysrhythmias are common abnormalities, usually manifesting as irregular rhythms. Although most irregularities are benign and caused by isolated atrial ectopics, in a few cases, rhythm irregularity may indicate partial atrioventricular block, which has different etiological and prognostic implications. We provide a flowchart for the initial management of irregular rhythm to help select cases requiring urgent specialist referral. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.bpobgyn.2019.01.002DOI Listing
January 2019
3 Reads

Atrioventricular reentrant tachycardia in a child with tricuspid atresia: A case report of catheter ablation.

Medicine (Baltimore) 2019 Feb;98(6):e14320

Department of Cardiology, Hunan Children's Hospital.

Rationale: Atrioventricular reentrant tachycardia (AVRT) is the most common supraventricular tachycardia occurring in children. However, in complex congenital heart disease patients with a different heart anatomy and conduction system morphology, accessory pathway modification may be particularly challenging because of distortion of typical anatomic landmarks.

Patient Concerns: A 10-year-old boy with tricuspid atresia and history of bidirectional Glenn operation had recurrent chest distress and palpitation for 3 months. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1097/MD.0000000000014320DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6380756PMC
February 2019
2 Reads

Critical inflammatory mechanisms underlying arrhythmias.

Herz 2019 Feb 7. Epub 2019 Feb 7.

Klinik für Angiologie und Kardiologie, Westdeutsches Herz- und Gefäßzentrum Essen, Universitätsklinikum der Universität Essen, Hufelandstr. 55, 45147, Essen, Germany.

During the past few decades, cardiovascular research has increasingly focused on systemic inflammatory mechanisms, particularly in the field of atherosclerosis but also in association with cardiac arrhythmogenesis. Objective inflammatory markers including C‑reactive protein and cytokines, also called "biomarkers," seem to serve as predictors of onset and prognosis of cardiac arrhythmias. This review gives an overview of potential mechanisms underlying inflammatory processes and arrhythmias, especially atrial fibrillation, which is the most common sustained arrhythmia in daily clinical routine. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1007/s00059-019-4788-5DOI Listing
February 2019

Sympathetic Nervous System Activation and Its Modulation: Role in Atrial Fibrillation.

Front Neurosci 2018 23;12:1058. Epub 2019 Jan 23.

Dobney Hypertension Centre, School of Medicine, Royal Perth Hospital Unit, Medical Research Foundation, The University of Western Australia, Perth, WA, Australia.

The autonomic nervous system (ANS) has a significant influence on the structural integrity and electrical conductivity of the atria. Aberrant activation of the sympathetic nervous system can induce heterogeneous changes with arrhythmogenic potential which can result in atrial tachycardia, atrial tachyarrhythmias and atrial fibrillation (AF). Methods to modulate autonomic activity primarily through reduction of sympathetic outflow reduce the incidence of spontaneous or induced atrial arrhythmias in animal models and humans, suggestive of the potential application of such strategies in the management of AF. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.3389/fnins.2018.01058DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6351490PMC
January 2019
2 Reads

Double trouble within the coronary sinus: What is the mechanism?

J Cardiovasc Electrophysiol 2019 Feb 6. Epub 2019 Feb 6.

Service de Cardiologie, Hôpital Privé Les Franciscaines, Nîmes, France.

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1111/jce.13870DOI Listing
February 2019
3 Reads