5,738 results match your criteria Ventricular Premature Complexes


Geometrical features for premature ventricular contraction recognition with analytic hierarchy process based machine learning algorithms selection.

Comput Methods Programs Biomed 2019 Feb 27;169:59-69. Epub 2018 Dec 27.

Telecommunication and Aeronautic Engineering, São Paulo State University (UNESP), São João da Boa Vista, Brazil. Electronic address:

Background And Objective: Premature ventricular contraction is associated to the risk of coronary heart disease, and its diagnosis depends on a long time heart monitoring. For this purpose, monitoring through Holter devices is often used and computational tools can provide essential assistance to specialists. This paper presents a new premature ventricular contraction recognition method based on a simplified set of features, extracted from geometric figures constructed over QRS complexes (Q, R and S waves). Read More

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http://dx.doi.org/10.1016/j.cmpb.2018.12.028DOI Listing
February 2019

Holter monitoring demonstrates that ventricular arrhythmias are common in cats with decompensated and compensated hypertrophic cardiomyopathy.

Vet J 2019 Jan 12;243:21-25. Epub 2018 Nov 12.

Division of Cardiology, Clinic for Small Animal Internal Medicine, Vetsuisse Faculty University of Zürich, Winterthurerstrasse 260, CH-8057 Zürich, Switzerland. Electronic address:

Arrhythmias can complicate cardiac disease in cats and are a potential cause of sudden death. The aim of this study was to evaluate the presence and nature of cardiac arrhythmias, and the potential correlation between plasma serum troponin I (cTnI) concentrations and the presence or severity of arrhythmias in cats with decompensated (dHCM) and compensated hypertrophic cardiomyopathy (cHCM). Forty one client-owned cats were studied: 16 with cHCM, 15 with dHCM and 10 healthy control cats. Read More

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http://dx.doi.org/10.1016/j.tvjl.2018.11.005DOI Listing
January 2019
1 Read

Coronary sinus as a site for stable temporary atrial pacing to tide over premature ventricular complex-triggered recurrent ventricular fibrillation in a patient with severe left ventricular dysfunction after coronary bypass surgery.

Indian Heart J 2018 Dec 21;70 Suppl 3:S483-S485. Epub 2018 Aug 21.

Cardiologist, Holy Family Hospital & Research Center, Mumbai, India. Electronic address:

Use of atrial pacing has been known, yet underutilized tool for effective temporary pacing whenever needed early after cardiac surgery. The reasons may be frequent failures of epicardial wires (fixed over atria intra-operative) leading to loss of capture. Endocardial atrial pacing sites for temporary pacing are unstable and hence continuous pacing with acceptable thresholds is impossible. Read More

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http://dx.doi.org/10.1016/j.ihj.2018.07.012DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6309571PMC
December 2018

Ambient fine particulate matter (PM2.5) exposure is associated with idiopathic ventricular premature complexes burden: A cohort study with consecutive Holter recordings.

J Cardiovasc Electrophysiol 2018 Dec 21. Epub 2018 Dec 21.

Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.

Background: Epidemiological evidence has shown an association between ambient fine particulate matter (PM2.5) exposure and cardiovascular mortality. Increased ventricular premature complex (VPC) burden can cause left ventricular dilatation and dysfunction. Read More

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http://doi.wiley.com/10.1111/jce.13829
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http://dx.doi.org/10.1111/jce.13829DOI Listing
December 2018
1 Read

Pacemaker implantation for treating migraine-like headache secondary to cardiac arrhythmia: A case report.

Medicine (Baltimore) 2018 Dec;97(50):e13629

Department of Neurology, The Second Hospital of Jilin University, Changchun, China.

Rationale: Co-occurrence of headache and arrhythmia is not rare. However, their causal relationship remains unclear. Here, we described a case of migraine-like headache relieving with pacemaker implantation. Read More

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http://dx.doi.org/10.1097/MD.0000000000013629DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6320178PMC
December 2018
1 Read

Vagus nerve stimulation reduces ventricular arrhythmias and increases ventricular electrical stability.

Pacing Clin Electrophysiol 2018 Dec 15. Epub 2018 Dec 15.

Xinjiang Key Laboratory of Medical Animal Model Research, Clinical Medical Research Institute, First Affiliated Hospital of Xinjiang Medical University, Urumqi, China.

Background: Transcutaneous stimulation of the auricular branch of the vagus nerve (AB-VNS) is a potentially noninvasive, inexpensive, and safe approach for vagus nerve stimulation that suppresses the induction and duration of atrial fibrillation and reduces sympathetic nerve outflow in healthy humans. Researchers have not determined whether AB-VNS affects ventricular arrhythmias.

Objective: To evaluate the antiarrhythmic effects of noninvasive AB-VNS on ventricular arrhythmias induced by myocardial infarction (MI). Read More

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http://dx.doi.org/10.1111/pace.13585DOI Listing
December 2018
10 Reads

Evaluation of a high-sensitivity cardiac troponin I assay compared to a first-generation cardiac troponin I assay in Doberman Pinschers with and without dilated cardiomyopathy.

J Vet Intern Med 2019 Jan 11;33(1):54-63. Epub 2018 Dec 11.

Clinic of Small Animal Medicine, LMU University, Munich, Germany.

Background: Echocardiography and 24-hour ECG are the gold standard tests to diagnose dilated cardiomyopathy (DCM) in Doberman Pinschers (DP), but myocardial damage might be detected earlier using a high-sensitivity cardiac troponin I (hs-cTnI) assay.

Objective: To evaluate and compare an hs-cTnI assay (Advia Centaur TnI-Ultra assay) with a conventional cTnI assay in DP with different stages of DCM and in healthy DP.

Animals: Three hundred forty-five examinations from 162 DP with and 179 DP without DCM. Read More

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http://dx.doi.org/10.1111/jvim.15384DOI Listing
January 2019
2 Reads

Mechanistic insight into spontaneous transition from cellular alternans to arrhythmia-A simulation study.

PLoS Comput Biol 2018 Nov 30;14(11):e1006594. Epub 2018 Nov 30.

Biological Physics Group, School of Physics & Astronomy, The University of Manchester, Manchester, United Kingdom.

Cardiac electrical alternans (CEA), manifested as T-wave alternans in ECG, is a clinical biomarker for predicting cardiac arrhythmias and sudden death. However, the mechanism underlying the spontaneous transition from CEA to arrhythmias remains incompletely elucidated. In this study, multiscale rabbit ventricular models were used to study the transition and a potential role of INa in perpetuating such a transition. Read More

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http://dx.doi.org/10.1371/journal.pcbi.1006594DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6291170PMC
November 2018

Mitral Valve Prolapse and Sudden Cardiac Death: A Systematic Review.

J Am Heart Assoc 2018 Dec;7(23):e010584

1 Department of Cardiology Austin Health University of Melbourne Melbourne Australia.

Background The relationship between mitral valve prolapse ( MVP ) and sudden cardiac death ( SCD ) remains controversial. In this systematic review, we evaluate the relationship between isolated MVP and SCD to better define a potential high-risk subtype. In addition, we determine whether premortem parameters could predict SCD in patients with MVP and the incidence of SCD in MVP . Read More

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http://dx.doi.org/10.1161/JAHA.118.010584DOI Listing
December 2018
1 Read

Assessment of premature ventricular beats in athletes.

Tunis Med 2018 Apr;96(4):155-159

Introduction: Premature ventricular complexes (PVC) are generally considered as a benign electrocardiographic abnormality in the athleticpopulation. However it may be indicative of underlying heart disease which may increase the risk of sudden death. This implies the need forcardiological evaluation before indicating the ability to practice competitive sports. Read More

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April 2018
10 Reads

Lower sarcoplasmic reticulum Ca threshold for triggering afterdepolarizations in diabetic rat hearts.

Heart Rhythm 2018 Nov 7. Epub 2018 Nov 7.

Department of Pharmacology and Nutritional Sciences, University of Kentucky, Lexington, Kentucky. Electronic address:

Background: Type 2 diabetes (T2D) increases arrhythmia risk through incompletely elucidated mechanisms. Ventricular arrhythmias could be initiated by delayed afterdepolarizations (DADs) resulting from elevated spontaneous sarcoplasmic reticulum (SR) Ca release (SR Ca leak).

Objective: The purpose of this study was to test the role of DADs and SR Ca leak in triggering arrhythmias in T2D hearts. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S15475271183113
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http://dx.doi.org/10.1016/j.hrthm.2018.11.001DOI Listing
November 2018
9 Reads

Arrhythmia initiation in catecholaminergic polymorphic ventricular tachycardia type 1 depends on both heart rate and sympathetic stimulation.

PLoS One 2018 6;13(11):e0207100. Epub 2018 Nov 6.

Institute for Experimental Medical Research, Oslo University Hospital and University of Oslo, Oslo, Norway.

Aims: Catecholaminergic polymorphic ventricular tachycardia type 1 (CPVT1) predisposes to ventricular tachyarrhythmias (VTs) during high heart rates due to physical or psychological stress. The essential role of catecholaminergic effects on ventricular cardiomyocytes in this situation is well documented, but the importance of heart rate per se for arrhythmia initiation in CPVT1 is largely unexplored.

Methods And Results: Sixteen CPVT1 patients performed a bicycle stress-test. Read More

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http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0207100PLOS
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6219810PMC
November 2018
7 Reads

Gender-Related Association of Serum Uric Acid Levels with Premature Ventricular Contraction.

Int Heart J 2018 Nov 5;59(6):1246-1252. Epub 2018 Nov 5.

Department of Cardiology, First Affiliated Hospital of Dalian Medical University.

In this study, we aim to investigate the association of serum uric acid (SUA) with the prevalence of premature ventricular contraction (PVC). The relationship between SUA and the prevalence of PVC in 98,965 subjects (79,034 male subjects, mean age: 51.9 ± 12. Read More

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https://www.jstage.jst.go.jp/article/ihj/advpub/0/advpub_17-
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http://dx.doi.org/10.1536/ihj.17-474DOI Listing
November 2018
18 Reads

Discordant Alternans as a Mechanism for Initiation of Ventricular Fibrillation In Vitro.

J Am Heart Assoc 2018 Sep;7(17):e007898

1 School of Mathematical Sciences Rochester Institute of Technology Rochester NY.

Background Ventricular tachyarrhythmias are often preceded by short sequences of premature ventricular complexes. In a previous study, a restitution-based computational model predicted which sequences of stimulated premature complexes were most likely to induce ventricular fibrillation in canines in vivo. However, the underlying mechanism, based on discordant-alternans dynamics, could not be verified in that study. Read More

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http://dx.doi.org/10.1161/JAHA.117.007898DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6201417PMC
September 2018
6 Reads

Catheter ablation of premature ventricular complexes arising from the left fascicular system.

Heart Rhythm 2018 Oct 16. Epub 2018 Oct 16.

Department of Cardiology, Wuhan Asian Heart Hospital, Wuhan, China.

Background: Idiopathic premature ventricular complexes (PVCs) that originate from the left fascicular system have rarely been reported.

Objective: The present study aimed to investigate the electrophysiological characteristics and the ablation strategy for this category of PVCs.

Methods: Of 648 patients with idiopathic PVCs, 27 were enrolled in this study. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S15475271183102
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http://dx.doi.org/10.1016/j.hrthm.2018.10.009DOI Listing
October 2018
5 Reads

Frequent Ventricular Ectopy: Implications and Outcomes.

Heart Lung Circ 2019 Jan 4;28(1):178-190. Epub 2018 Oct 4.

Department of Cardiology, The Prince Charles Hospital, Brisbane, Qld, Australia; Faculty of Medicine, University of Queensland, Brisbane, Qld, Australia. Electronic address:

Frequent ventricular ectopy is a common clinical presentation in patients suffering idiopathic ventricular outflow tract arrhythmias. These are focal arrhythmias that generally occur in patients without structural heart disease and share a predilection for characteristic anatomic sites of origin. Mechanistically, they are generally due to cyclic adenosine monophosphate (cAMP)-mediated triggered activity. Read More

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http://dx.doi.org/10.1016/j.hlc.2018.09.009DOI Listing
January 2019
1 Read

Improving the utilization of implantable cardioverter defibrillators for sudden cardiac arrest prevention (Improve SCA) in developing countries: Clinical characteristics and reasons for implantation refusal.

Pacing Clin Electrophysiol 2018 Dec 31;41(12):1619-1626. Epub 2018 Oct 31.

Department of Cardiac Rhythm Management, Medtronic, Mounds View, Minnesota.

Background: Despite available evidence that implantable cardioverter defibrillators (ICDs) reduce all-cause mortality among patients at risk for sudden cardiac death, utilization of ICDs is low especially in developing countries.

Objective: To summarize reasons for ICD or cardiac resynchronization therapy defibrillator implant refusal by patients at risk for sudden cardiac arrest (Improve SCA) in developing countries.

Methods: Primary prevention (PP) and secondary prevention (SP) patients from countries where ICD use is low were enrolled. Read More

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http://doi.wiley.com/10.1111/pace.13526
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http://dx.doi.org/10.1111/pace.13526DOI Listing
December 2018
3 Reads

Treatment of ventricular arrhythmias: What's New?

Trends Cardiovasc Med 2018 Sep 22. Epub 2018 Sep 22.

Division of Cardiology, Section for Cardiac Electrophysiology, Hospital of the University of Pennsylvania, 3400 Civic Center Boulevard, Philadelphia, PA 19104, United States.

Ventricular arrhythmias can present as asymptomatic premature ventricular complexes (PVCs) or non-sustained ventricular tachycardia (VT), symptomatic presentation of the former arrhythmias, or sustained VT with minimal symptoms to full hemodynamic collapse. The most important and feared consequence of VT is sudden cardiac death (SCD). Independent of SCD risk, frequent ventricular arrhythmias can cause substantial symptoms. Read More

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http://dx.doi.org/10.1016/j.tcm.2018.09.014DOI Listing
September 2018
16 Reads

Influence of myocardial scar on the response to frequent premature ventricular complex ablation.

Heart 2018 Sep 21. Epub 2018 Sep 21.

Centro Médico Teknon, Barcelona, Spain.

Objective: This study aims to evaluate the influence of myocardial scar after premature ventricular complexes (PVC) ablation in patients with left ventricular (LV) dysfunction.

Methods: 70 consecutive patients (58±11 years, 58 (83%) men, 23% (18-32) mean PVC burden) with LV dysfunction and frequent PVCs submitted for ablation were included. A late gadolinium enhancement cardiac magnetic resonance (LGE-CMR) was performed prior to the ablation and a quantitative and qualitative analysis of the scar was done. Read More

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http://dx.doi.org/10.1136/heartjnl-2018-313452DOI Listing
September 2018
2 Reads

Ventricular Tachycardia Ablation With Half-Normal Saline Irrigant: Half Is the New Normal?

JACC Clin Electrophysiol 2018 Sep;4(9):1186-1188

Cardiovascular Division, Vanderbilt University Medical Center, Nashville, Tennessee. Electronic address:

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http://dx.doi.org/10.1016/j.jacep.2018.07.014DOI Listing
September 2018
4 Reads

Premature atrial and ventricular complexes in outpatients referred from a primary care facility.

PLoS One 2018 20;13(9):e0204246. Epub 2018 Sep 20.

Heart Institute, University of São Paulo Medical School, São Paulo, Brazil.

Background: Premature complexes are common electrocardiographic findings in daily clinical practice that require further evaluation. Investigation may sometimes be complex and expensive. The aim of our study was to analyze variables associated with premature beats identified in outpatients referred from a primary care facility. Read More

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http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0204246PLOS
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6147493PMC
September 2018
24 Reads

Is There any Relationship Between Myocardial Repolarization Parameters and the Frequency of Ventricular Premature Contractions?

Arq Bras Cardiol 2018 Jun;110(6):534-541

Gaziosmanpasa University Faculty of Medicine, Department of Cardiology, Tokat - Turkey.

Background: Ventricular premature contractions (VPCs) may trigger lethal ventricular arrhythmias in patients with structural heart disease. However, this role of VPCs in healthy people remains controversial once that not enough clinical trials are available. Recently, some myocardial repolarization markers, such as Tp-e interval, Tp-e/QT, and Tp-e/QTc ratios, have been reported to be useful for predicting lethal ventricular arrhythmias in various clinical disorders without structural heart disease. Read More

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http://dx.doi.org/10.5935/abc.20180079DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6023631PMC
June 2018
3 Reads

Prognostic significance of frequent premature ventricular complex early after implantation among patients with implantable cardioverter defibrillator.

J Electrocardiol 2018 Sep - Oct;51(5):898-905. Epub 2018 Jun 5.

State Key Laboratory of Cardiovascular Disease, Arrhythmia Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China. Electronic address:

Background: Premature ventricular complex (PVC) was mainly studied by 24-hour Holter in previous studies. However, the value of long-term Home Monitoring of PVC burden early after ICD implantation is unknown.

Methods: The data of 416 patients with ICD were analyzed. Read More

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http://dx.doi.org/10.1016/j.jelectrocard.2018.06.004DOI Listing
June 2018
8 Reads

Successful catheter ablation of ventricular fibrillation: Which premature ventricular complexes should we target?

Authors:
Enes Elvin Gul

J Electrocardiol 2018 Sep - Oct;51(5):824. Epub 2018 Jul 7.

Division of Cardiac Electrophysiology, Madinah Cardiac Centre, Madinah, Saudi Arabia. Electronic address:

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http://dx.doi.org/10.1016/j.jelectrocard.2018.07.001DOI Listing
July 2018
6 Reads

Assessment of systolic and diastolic function in clinically healthy horses using ambulatory acoustic cardiography.

Equine Vet J 2018 Sep 1. Epub 2018 Sep 1.

Clinic for Equine Internal Medicine, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland.

Background: Assessment of cardiac electromechanical function in horses requires training, experience and specialised equipment and does not allow continuous monitoring over time.

Objectives: The objective of this study was to establish the use of an acoustic ECG monitor (Audicor ) in healthy horses. It provides noninvasive, examiner-independent, continuous analyses combining ECG and phonocardiography to calculate indices of cardiac mechanical activity and haemodynamics. Read More

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http://dx.doi.org/10.1111/evj.13014DOI Listing
September 2018
1 Read

[Electrocardiographic characteristics of idiopathic ventricular arrhythmias originating from the tricuspid annulus regions].

Zhonghua Xin Xue Guan Bing Za Zhi 2018 Aug;46(8):611-616

Department of Cardiology, Second Affiliated Hospital of Wenzhou Medical College, Wenzhou 325027, China.

To explore the electrocardiographic characteristics of ventricular arrhythmias (VAs) originating from tricuspid annulus region. Present study included 169 consecutive patients undergoing catheter ablation of VAs from tricuspid annulus origin in our department from August 2007 to September 2016. Based on the origin sites, the patients were divided into two subgroups, the free wall group (81 cases) and septal wall group (88 cases). Read More

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http://dx.doi.org/10.3760/cma.j.issn.0253-3758.2018.08.007DOI Listing
August 2018
2 Reads

A modified approach for programmed electrical stimulation in mice: Inducibility of ventricular arrhythmias.

PLoS One 2018 22;13(8):e0201910. Epub 2018 Aug 22.

Division of Cardiology, Pulmonology and Vascular Medicine, Medical Faculty, University Duesseldorf, Duesseldorf, Germany.

Background: Electrophysiological studies in mice, the prevailing model organism in the field of basic cardiovascular research, are impeded by the low yield of programmed electrical stimulation (PES).

Objective: To investigate a modified approach for ventricular arrhythmia (VA) induction and a novel scoring system in mice.

Method: A systematic review of literature on current methods for PES in mice searching the PubMed database revealed that VA inducibility was low and ranged widely (4. Read More

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http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0201910PLOS
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6104969PMC
August 2018
2 Reads

Six-month safety evaluation of robenacoxib tablets (Onsior™) in dogs after daily oral administrations.

BMC Vet Res 2018 Aug 17;14(1):242. Epub 2018 Aug 17.

Elanco Animal Health, a Division of Eli Lilly and Company, Mattenstrasse 24a, CH-4058, Basel, Switzerland.

Background: Robenacoxib is a non-steroidal anti-inflammatory drug available for canine and feline use for the control of pain and inflammation marketed as Onsior™. The aim of this target animal safety study was to evaluate the 6-month safety profile of oral robenacoxib administration. It was a randomized, negative-controlled, parallel group study. Read More

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https://bmcvetres.biomedcentral.com/articles/10.1186/s12917-
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http://dx.doi.org/10.1186/s12917-018-1566-1DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6098579PMC
August 2018
15 Reads

Percutaneous cryoablation for papillary muscle ventricular arrhythmias after failed radiofrequency catheter ablation.

J Cardiovasc Electrophysiol 2018 Dec 5;29(12):1654-1663. Epub 2018 Oct 5.

Electrophysiology Section, Division of Cardiology, Hospital of the University of Pennsylvania, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania.

Background: Catheter ablation of ventricular arrhythmias (VA) from the papillary muscles (PM) is challenging due to limited catheter stability and contact on the PMs with their anatomic complexity and mobility.

Objective: This study aimed to evaluate the effectiveness of cryoablation as an adjunctive therapy for PM VAs when radiofrequency (RF) ablation has failed.

Methods: We evaluated a retrospective series of patients who underwent cryoablation for PM VAs when RF ablation had failed. Read More

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https://onlinelibrary.wiley.com/doi/abs/10.1111/jce.13716
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http://dx.doi.org/10.1111/jce.13716DOI Listing
December 2018
12 Reads

The role of the Purkinje network in premature ventricular complex-triggered ventricular fibrillation.

J Interv Card Electrophysiol 2018 Aug 31;52(3):375-383. Epub 2018 Jul 31.

Texas Cardiac Arrhythmia Institute, St. David's Medical Center, 3000 N. IH-35, Suite 720, Austin, TX, 78705, USA.

The Purkinje network (PN) is the distal part of the ventricular conduction system, which has shown to play a central role in the pathophysiology of ventricular fibrillation (VF). Abnormal automaticity and triggered activity are commonly seen in the PN, and the resulting premature ventricular complexes (PVCs) are frequently recognized as triggers of this life-threatening arrhythmia. Catheter ablation targeting PN-related PVCs can be successfully performed in patients with medically refractory VF in a variety of arrhythmic substrates. Read More

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http://dx.doi.org/10.1007/s10840-018-0402-7DOI Listing
August 2018
2 Reads

Ventricular Arrhythmias Underlie Sudden Death in Rats With Heart Failure and Preserved Ejection Fraction.

Circ Arrhythm Electrophysiol 2018 Aug;11(8):e006452

Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA.

Background: Heart failure (HF) with preserved ejection fraction (HFpEF) is increasingly common clinically, now rivaling or exceeding HF with reduced ejection fraction . Sudden death is the leading mode of exodus in patients with HFpEF, but the underlying causes are largely unknown. Using ambulatory recordings in a rat model, we test the hypothesis that ventricular arrhythmias (VA) underlie sudden death in HFpEF. Read More

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http://dx.doi.org/10.1161/CIRCEP.118.006452DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6091890PMC
August 2018
14 Reads

Congenital Absence of Left Coronary Artery Accompanied by Premature Ventricular Complexes.

Am J Med Sci 2018 Sep 1;356(3):e31-e32. Epub 2018 May 1.

Department of Cardiology, Zhejiang Hospital, Hangzhou, Zhejiang Province, China.. Electronic address:

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http://dx.doi.org/10.1016/j.amjms.2018.04.014DOI Listing
September 2018
1 Read

Novel criterion for the differential diagnosis of wide QRS complexes and wide complex tachycardia using the initial activation of QRS on leads V1 and V2: Differential diagnosis of wide QRS based on V1-V2.

J Electrocardiol 2018 Jul - Aug;51(4):700-706. Epub 2018 Apr 25.

Cardiology Department, Hôpital du Sacré-Cœur de Montréal, Université de Montréal, Canada.

Background: Many diagnostic criteria for the differential diagnosis of wide complex tachycardia (WCT) are complex and not completely accurate. Incorrect diagnosis is also related to error in applying criteria.

Objectives: To propose a novel reliable criterion for wide QRS complexes' differential diagnosis. Read More

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http://dx.doi.org/10.1016/j.jelectrocard.2018.04.015DOI Listing
April 2018
2 Reads

Autonomic influences related to frequent ventricular premature beats in patients without structural heart disease.

Medicine (Baltimore) 2018 Jul;97(28):e11489

Department of Cardiology I, Victor Babes University of Medicine and Pharmacy Timisoara, Timisioara, Romania.

To study the possible role of autonomic influences on the occurrence of frequent premature ventricular beats (VPBs) in subjects without structural heart disease.24-hour Holter ECG recordings (≥1500 VPBs/d, sinus rhythm) of 20 symptomatic patients (9 women, 11 men, mean age 58.9 years) without structural heart disease were used for the study. Read More

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http://dx.doi.org/10.1097/MD.0000000000011489DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6076203PMC
July 2018
12 Reads

Acute echocardiographic effects of sotalol on ventricular systolic function in dogs with ventricular arrhythmias.

J Vet Intern Med 2018 Jul 3;32(4):1299-1307. Epub 2018 Jul 3.

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

Background: Sotalol is a commonly used antiarrhythmic drug that may alter ventricular function.

Objective: To determine the effect of sotalol on echocardiographic indices of ventricular systolic function in dogs with ventricular arrhythmias.

Animals: Thirty-five client-owned dogs with ventricular arrhythmias. Read More

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http://dx.doi.org/10.1111/jvim.15224DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6060330PMC
July 2018
2 Reads

Premature Ventricular Complex-induced Cardiomyopathy.

Arrhythm Electrophysiol Rev 2018 Jun;7(2):128-134

Royal Papworth Hospital NHS Foundation Trust, Cambridge University Health Partners Cambridge, UK.

Premature ventricular complex-induced cardiomyopathy is a potentially reversible condition in which left ventricular dysfunction is induced by the occurrence of frequent premature ventricular complexes (PVCs). Various cellular and extracellular mechanisms and risk factors for developing cardiomyopathy in this context have been suggested but the exact pathophysiological mechanism remains unclear. The suppression of PVCs is usually indicated in symptomatic patients with frequent PVCs and also those with left ventricular dysfunction. Read More

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http://dx.doi.org/10.15420/aer.2018.23.2DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6020182PMC
June 2018
11 Reads

Reversal of premature ventricular complexes induced cardiomyopathy. Influence of concomitant structural heart disease.

Indian Heart J 2018 May - Jun;70(3):410-415. Epub 2017 Sep 1.

Department of Cardiovascular Medicine, Faculty of Medicine, Ain Shams University, Egypt. Electronic address:

Background: We examined the effect of radiofrequency (RF) catheter ablation of premature ventricular complexes (PVCs) on left ventricle (LV) function recovery in patients with LV dysfunction, regardless the presence of structural heart disease (SHD).

Methods: Seventy seven patients with impaired LV ejection fraction (EF) (37.1±9. Read More

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http://dx.doi.org/10.1016/j.ihj.2017.08.025DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6034082PMC
September 2018
4 Reads

Remote magnetic navigation facilitates the ablations of frequent ventricular premature complexes originating from the outflow tract and the valve annulus as compared to manual control navigation.

Int J Cardiol 2018 Sep;267:94-99

Department of Cardiology, Shanghai Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China. Electronic address:

Objective: The purpose of this study was to assess the role of remote magnetic navigation (RMN) in the ablation of ventricular premature complexes (VPCs) arising from outflow tracts (OT) and valve annuli by comparing to manual control navigation (MCN).

Methods: A total of 152 patients with frequent VPCs were prospectively enrolled. 64 (42%) patients underwent ablation guided by RMN. Read More

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http://dx.doi.org/10.1016/j.ijcard.2018.03.105DOI Listing
September 2018
5 Reads

High-density mapping for catheter ablation of premature ventricular complexes originating from left ventricular papillary muscles: A case series.

Pacing Clin Electrophysiol 2018 09 7;41(9):1071-1077. Epub 2018 Aug 7.

Department of Cardiology, Assistance Publique - Hôpitaux de Marseille (APHM), Aix-Marseille University, Timone Hospital, France.

Purpose: Ablation of premature ventricular complexes (PVCs) originating from left-sided papillary muscles is challenging. We tested a new approach by performing high-density mapping of PVC.

Methods And Results: We used a 20-pole deflectable spiral catheter during ablation procedures in four consecutive patients. Read More

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http://dx.doi.org/10.1111/pace.13417DOI Listing
September 2018
5 Reads

Activation recovery interval imaging of premature ventricular contraction.

PLoS One 2018 15;13(6):e0196916. Epub 2018 Jun 15.

Department of Biomedical Engineering, University of Minnesota, Minneapolis, MN, United States of America.

Dispersion of ventricular repolarization due to abnormal activation contributes to the susceptibility to cardiac arrhythmias. However, the global pattern of repolarization is difficult to assess clinically. Activation recovery interval (ARI) has been used to understand the properties of ventricular repolarization. Read More

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http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0196916PLOS
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6003683PMC
November 2018
2 Reads

Clinical and electrocardiographic characteristics for prediction of new-onset atrial fibrillation in asymptomatic patients with atrial premature complexes.

Int J Cardiol Heart Vasc 2018 Jun 17;19:70-74. Epub 2018 May 17.

Division of Cardiology, Department of Internal Medicine, Kosin University Gospel Hospital, Kosin University College of Medicine, Busan 602-702, Republic of Korea.

Backgrounds: Identification of precursors of atrial fibrillation (AF) may lead to early detection and prevent associated morbidity and mortality. Atrial premature complexes (APCs) are commonly seen in healthy subjects. However, there was limited data about the clinical and electrocardiographic (ECG) characteristics for prediction of new-onset AF in asymptomatic patients with APCs in the long-term follow up. Read More

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http://dx.doi.org/10.1016/j.ijcha.2018.05.002DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5993103PMC
June 2018
5 Reads

Clinical Safety and Efficacy of Wenxin Keli-Amiodarone Combination on Heart Failure Complicated by Ventricular Arrhythmia: A Systematic Review and Meta-analysis.

Front Physiol 2018 23;9:487. Epub 2018 May 23.

Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China.

To evaluate possible adverse effects and efficacy of Wenxin keli (WXKL)-amiodarone combination on heart failure complicated by ventricular arrhythmia. Nine electronic literature databases (the Cochrane Library, PubMed, EMBASE, IPA, AMED, CBM, CNKI, VIP, and WanFang) were searched up to February 2018. Two authors extracted data and assessed risk of bias of the included studies independently. Read More

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http://dx.doi.org/10.3389/fphys.2018.00487DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5974952PMC
May 2018
2 Reads

Reduction of arrhythmias in primary hyperparathyroidism, by parathyroidectomy, evaluated with 24-h ECG monitoring.

Eur J Endocrinol 2018 Aug 6;179(2):117-124. Epub 2018 Jun 6.

Department of Internal Medicine and Medical Disciplines'Sapienza' University of Rome, Rome, Italy.

Objective: Hypercalcemia may induce arrhythmias. There are no data on the prevalence of arrhythmias in primary hyperparathyroidism (PHPT) in daily life. Aim of the study was to investigate both the prevalence of arrhythmias in patients with PHPT compared to controls and the impact of parathyroidectomy, evaluated by 24-h electrocardiogram (ECG) monitoring. Read More

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http://dx.doi.org/10.1530/EJE-17-0948DOI Listing
August 2018
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Insights on the pulmonary artery-derived ventricular arrhythmia.

J Cardiovasc Electrophysiol 2018 Sep 20;29(9):1330-1337. Epub 2018 Jun 20.

Cardiac Catheterization Lab of Second Xiangya Hospital attached to Central South University, Hunan, People's Republic of China.

Pulmonary artery-derived ventricular arrhythmia is gradually being recognized, which in a clinical context is recognized as an arterial ectopic beat. Our study aimed to provide new insights on the epidemiological characteristics, origin site, electrocardiogram (ECG) characteristics, intracardiac electrophysiological characteristics and radiofrequency catheter ablation (RFCA) strategies for pulmonary artery-derived ventricular arrhythmia. Patients with a distance between the origin site and the pulmonary valve of >10 mm have what is known as pulmonary trunk-derived ventricular arrhythmia, while patients with a distance between the origin site and the pulmonary valve of ≤10 mm have what is known as pulmonary sinus cusp-derived ventricular arrhythmia. Read More

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http://dx.doi.org/10.1111/jce.13652DOI Listing
September 2018
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Bayesian Classification Models for Premature Ventricular Contraction Detection on ECG Traces.

J Healthc Eng 2018 10;2018:2694768. Epub 2018 May 10.

Instituto de Ingenieria, Universidad Autonoma de Baja California, Mexicali, BC, Mexico.

According to the American Heart Association, in its latest commission about Ventricular Arrhythmias and Sudden Death 2006, the epidemiology of the ventricular arrhythmias ranges from a series of risk descriptors and clinical markers that go from ventricular premature complexes and nonsustained ventricular tachycardia to sudden cardiac death due to ventricular tachycardia in patients with or without clinical history. The premature ventricular complexes (PVCs) are known to be associated with malignant ventricular arrhythmias and sudden cardiac death (SCD) cases. Detecting this kind of arrhythmia has been crucial in clinical applications. Read More

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http://dx.doi.org/10.1155/2018/2694768DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5971262PMC
May 2018
12 Reads

Atrial flutter and nonconducted bigeminy premature atrial contraction in a neonate with cardiac rhabdomyoma.

Turk Kardiyol Dern Ars 2018 06;46(4):313-317

Department of Pediatric Cardiology, Health Sciences University İstanbul Mehmet Akif Ersoy Thoracic and Cardiovascular Surgery Training and Research Hospital, İstanbul, Turkey.

During the neonatal period the majority of cardiac tumors seen are rhabdomyomas, and the clinical manifestations are notably variable. Symptoms of rhabdomyoma depend on the presence of intracardiac obstructions, myocardial involvement, or rhythm disturbances. Most cardiac rhabdomyomas regress in follow-up, but some need medical/surgical intervention during the neonatal period as a result of resistant atrial or ventricular arrhythmia. Read More

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http://archivestsc.com/jvi.aspx?un=TKDA-72177
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http://dx.doi.org/10.5543/tkda.2017.72177DOI Listing
June 2018
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The Extended Dwell Peripheral Intravenous Catheter Is an Alternative Method of NICU Intravenous Access.

Adv Neonatal Care 2018 Aug;18(4):295-301

Primary Children's Neonatal Nurse Practitioner Group, Intermountain Healthcare, Salt Lake City, Utah (Dr Chenoweth); College of Nursing, University of Utah, Salt Lake City, Utah (Dr Guo); and Division of Neonatology, Department of Pediatrics, University of Utah School of Medicine, Salt Lake City, Utah (Dr Chan).

Background: Establishing vascular access is a common neonatal intensive care unit procedure. The extended dwell peripheral intravenous (EPIV) catheter is a 6-cm and 8-cm silicone catheter for peripheral vein insertion, which is a newer vascular access device than peripherally inserted central catheters (PICCs) and peripheral intravenous (PIV) catheter. Extended dwell peripheral intravenous catheters have been widely used in adults but evidence in neonates is lacking. Read More

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http://Insights.ovid.com/crossref?an=00149525-201808000-0000
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http://dx.doi.org/10.1097/ANC.0000000000000515DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6085132PMC
August 2018
5 Reads

Chronic median nerve modulation reduces ventricular arrhythmia and improves ventricular function in a postmyocardial infarction rabbit model.

Cardiovasc Ther 2018 Aug 28;36(4):e12437. Epub 2018 Jun 28.

The Cardiac Arrhythmia Center, State Key Laboratory of Cardiovascular Disease, National Clinical Research Center of Cardiovascular Diseases, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.

Aim: Median nerve stimulation (MNS) is a novel neuromodulation approach for treatment of ventricular arrhythmia, but little is known about its chronic effects. The aim of this study was to investigate the effects of chronic MNS on ventricular arrhythmia and ventricular dysfunction postmyocardial infarction (MI).

Method: Two weeks after MI, 12 rabbits were randomly divided into control and MNS groups, and chronic MNS was performed in MNS group for 2 weeks. Read More

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http://dx.doi.org/10.1111/1755-5922.12437DOI Listing
August 2018
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True vs. pseudo-electrical ventricular alternans sustained by ventricular premature complexes.

Herzschrittmacherther Elektrophysiol 2018 Jun;29(2):233-235

Biotronik, Berlin, Germany.

This report describes a form of electrical ventricular alternans sustained by ventricular premature complexes (VPC). Alternans was associated with a constant heart rate (RR interval) and was therefore considered to be either a form of classic or true alternans or a mimic of the configuration seen in true alternans from other causes. In contrast, VPC-induced pseudo-alternans is characterized by an inconstant heart rate (RR interval). Read More

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http://dx.doi.org/10.1007/s00399-018-0572-0DOI Listing
June 2018
2 Reads

Ectopic Beats: Insights from Timing and Morphology.

Card Electrophysiol Clin 2018 06;10(2):257-275

Texas Cardiac Arrhythmia Institute, St. David's Medical Center, 3000 N Interstate Hwy 35 #700, Austin, TX 78705, USA; Department of Biomedical Engineering, University of Texas, Austin, TX, USA; Interventional Electrophysiology, Scripps Clinic, La Jolla, CA, USA; MetroHealth Medical Center, Case Western Reserve University School of Medicine, Cleveland, OH, USA; Division of Cardiology, Stanford University, Stanford, CA, USA; Electrophysiology and Arrhythmia Services, California Pacific Medical Center, San Francisco, CA, USA.

Premature complexes are electrical impulses arising from atrial, junctional, or ventricular tissue, leading to premature heart beats. Premature atrial beats are much more frequent than those arising in the atrioventricular junction but less frequent than premature beats from the ventricles. Although they are usually benign and highly prevalent in the general population, they could trigger sustained supraventricular and ventricular arrhythmias, and cause cardiomyopathies. Read More

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http://dx.doi.org/10.1016/j.ccep.2018.02.013DOI Listing
June 2018
4 Reads