4,998 results match your criteria Journal of Electrocardiology[Journal]


ECG interpretation skill acquisition: A review of learning, teaching and assessment.

J Electrocardiol 2019 Apr 12. Epub 2019 Apr 12.

School of Nursing, Ulster University, Shore Road, Jordanstown Campus, BT37 0QB, United Kingdom of Great Britain and Northern Ireland; Institute of Nursing and Health Research, Ulster University, Shore Road, Jordanstown Campus, BT37 0QB, United Kingdom of Great Britain and Northern Ireland.

The recording of 12 lead electrocardiograms (ECG) is one of the most useful and commonly performed medical procedures. ECGs are used in diagnosis, risk-stratification management decision-making, and assessment in response to therapy. The correct interpretation of 12 lead ECG recordings is complex and clinically challenging with misinterpretation having the potential to result in poor outcomes or even patient fatality. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S00220736183064
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http://dx.doi.org/10.1016/j.jelectrocard.2019.03.010DOI Listing
April 2019
1 Read

The significance of electrocardiographic changes without echocardiographic evidence of segmental wall motion abnormalities in patients undergoing dobutamine stress echocardiography.

J Electrocardiol 2019 Apr 13. Epub 2019 Apr 13.

The Section of Cardiology, The Department of Medicine, Baylor College of Medicine, Houston, TX, USA; The Texas Heart institute, Baylor St. Luke's Medical Center, Houston, TX, USA. Electronic address:

Ischemic ECG changes during dobutamine stress echocardiography (DSE) have been reported to have low sensitivity and specificity for detecting myocardial ischemia in the absence of wall motion abnormalities on echocardiography. We present a case of a renal transplant candidate with severe multivessel disease who had ST depressions without any wall motion abnormalities on DSE. Certain studies have shown the sensitivity of DSE is lower in patients with left ventricular hypertrophy and/or end stage renal disease, but the significance of ischemic ECG changes with no evidence of wall motion abnormalities in these patients has not been well studied. Read More

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http://dx.doi.org/10.1016/j.jelectrocard.2019.04.008DOI Listing

Left axis deviation in patients with left bundle branch block is a marker of myocardial disease associated with poor response to cardiac resynchronization therapy.

J Electrocardiol 2019 Apr 5. Epub 2019 Apr 5.

Department of Cardiology, Gentofte University Hospital, Denmark.

Aims: Patients with left axis deviation (LAD) and left bundle branch block (LBBB) show less benefit from cardiac resynchronization therapy (CRT) compared to other LBBB-patients. This study investigates the reasons for this.

Methods: Sixty-eight patients eligible for CRT were included. Read More

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http://dx.doi.org/10.1016/j.jelectrocard.2019.04.007DOI Listing

Interference dissociation during a baseline complete left bundle-branch block with advanced right bundle-branch block.

J Electrocardiol 2019 Mar 29;54:96-98. Epub 2019 Mar 29.

Department of Cardiology, Gifu University, Graduate School of Medicine, 1-1 Yanagido, Gifu 501-1194, Japan.

A 64-year-old woman presented to the hospital with a complaint of dyspnea on effort. The 12‑lead electrocardiogram showed a baseline complete left bundle-branch block, in which the right bundle developed >2:1 block. The subsequent blocked sinus impulse resulted in a ventricular pause that caused the ventricular escape presenting as a QRS complex with right bundle-branch block pattern. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S00220736193013
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http://dx.doi.org/10.1016/j.jelectrocard.2019.03.015DOI Listing
March 2019
2 Reads

Thyrotoxic periodic paralysis with ventricular tachycardia.

J Electrocardiol 2019 Apr 4;54:93-95. Epub 2019 Apr 4.

Department of Emergency Medicine, Mackay Memorial Hospital, Taipei, Taiwan; Department of Medicine, Mackay Medical College, New Taipei City, Taiwan; Department of Oral Hygiene, College of Oral Medicine, Taipei Medical University, Taipei, Taiwan. Electronic address:

A 47-year-old man presented to our emergency department (ED) with limbs weakness for 2 h. His heart rate was 127 beats per minute and blood pressure was 95/49 mm Hg. He found weakness of limbs after 4-h sleep. Read More

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http://dx.doi.org/10.1016/j.jelectrocard.2019.04.001DOI Listing
April 2019
2 Reads

Syncope in a patient with acute pulmonary embolism and Brugada Type-2 ECG pattern: Brugada phenocopy or Brugada syndrome?

J Electrocardiol 2019 Apr 4;54:90-92. Epub 2019 Apr 4.

Cardiology Department, ASST Nord Milano, Ospedale E. Bassini, Cinisello Balsamo, Milan, Italy.

Brugada phenocopies are clinical entities characterized by electrocardiographic patterns that are identical to true Brugada syndrome, but are elicited by a number of clinical circumstances. ECG normalizes upon resolution of underlying condition, family history of arrhythmic syncope or ventricular arrhythmias is strictly absent and provocative tests with sodium channel blockers have to be negative. We describe herein the case of type-2 ECG Brugada pattern in a patient with acute pulmonary embolism presenting with recurrent syncope but negative provocative test with sodium channel blockers. Read More

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http://dx.doi.org/10.1016/j.jelectrocard.2019.04.003DOI Listing
April 2019
1 Read

Atypical advanced interatrial block or junctional rhythm?

J Electrocardiol 2019 Mar 27;54:85-86. Epub 2019 Mar 27.

Heart Rhythm Service, Kingston Hospital, Kingston, Ontario, Canada.

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http://dx.doi.org/10.1016/j.jelectrocard.2019.03.014DOI Listing
March 2019
2 Reads

Transient triangular QRS-ST-T waveform with good outcome in a patient with left main coronary artery stenosis: A case report.

J Electrocardiol 2019 Feb 16;54:87-89. Epub 2019 Feb 16.

Department of Cardiology, Onofre Lopes University Hospital, UFRN Medical School, Natal, Brazil. Electronic address:

Triangular QRS-ST-T waveform, also known as "shark fin pattern", is an ECG presentation of ST segment elevation myocardial infarction with a unique wave composed by the QRS complex, the ST segment, and the T wave. It is associated with very poor prognosis and recently has been shown to be more common in patients with left main coronary artery (LMCA) involvement. Nevertheless, data supporting this correlation is scant. Read More

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http://dx.doi.org/10.1016/j.jelectrocard.2019.02.002DOI Listing
February 2019
2 Reads

Continuous veno-venous hemodialysis and suspected pacemaker malfunction on telemetry monitoring.

J Electrocardiol 2019 Mar 23;54:82-84. Epub 2019 Mar 23.

Division of Cardiology, University of California, San Francisco, United States of America; Division of Cardiology, Department of Medicine, Zuckerberg San Francisco General Hospital, San Francisco, United States of America.

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https://linkinghub.elsevier.com/retrieve/pii/S00220736193016
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http://dx.doi.org/10.1016/j.jelectrocard.2019.03.012DOI Listing
March 2019
3 Reads

Emergency physicians should be shown all triage ECGs, even those with a computer interpretation of "Normal".

J Electrocardiol 2019 Mar 21;54:79-81. Epub 2019 Mar 21.

Hennepin County Medical Center, Department of Emergency Medicine, 701 Park Ave, Minneapolis, MN 55415, United States of America; University of Minnesota, Department of Emergency Medicine, 717 Delaware Street SE, Suite 508, Minneapolis, MN 55414, United States of America.

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http://dx.doi.org/10.1016/j.jelectrocard.2019.03.003DOI Listing

Blinded by the height: A case of telemetry T wave overcounting.

J Electrocardiol 2019 Mar 23;54:76-78. Epub 2019 Mar 23.

Department of Medicine, University of California, San Francisco, San Francisco, CA, United States of America; Division of Cardiology, Department of Medicine, Zuckerberg San Francisco General Hospital and Trauma Center, San Francisco, CA, United States of America.

High grade atrioventricular (AV) block, defined as 2 or more non-conducted P waves, is a common indication for permanent pacemaker implantation and can be a cause of syncope or presyncope. A 61 year-old male presented to the emergency department with presyncopal symptoms and high grade AV block confirmed on electrocardiogram. Continuous cardiac telemetry monitoring did not trigger any alarm notification during episodes of AV block, due to T wave overcounting. Read More

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http://dx.doi.org/10.1016/j.jelectrocard.2019.03.013DOI Listing
March 2019
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Evaluation of index of cardiac-electrophysiological balance before and after hemodialysis in patients with end-stage renal disease.

J Electrocardiol 2019 Mar 22;54:72-75. Epub 2019 Mar 22.

Department of Cardiology, Ahi Evran University Training and Research Hospital, Kırşehir, Turkey.

Background: Ventricular arrhythmias and sudden cardiac deaths are the most common cause of mortality in patients with end-stage renal disease (ESRD). Index of cardiac-electrophysiological balance (iCEB) (QT/QRS) may predict malignant ventricular arrhythmias. In this study, we investigated whether iCEB value is increased in ESRD patients and whether it changes before and after hemodialysis. Read More

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http://dx.doi.org/10.1016/j.jelectrocard.2019.03.011DOI Listing
March 2019
2 Reads

The WCT Formula: A novel algorithm designed to automatically differentiate wide-complex tachycardias.

J Electrocardiol 2019 Feb 25;54:61-68. Epub 2019 Feb 25.

Department of Cardiovascular Diseases, Mayo Clinic, United States of America.

Background: The accurate differentiation of wide complex tachycardias (WCTs) into ventricular tachycardia (VT) or supraventricular wide complex tachycardia (SWCT) remains problematic despite numerous manually-operated electrocardiogram (ECG) interpretation methods. We sought to create a new WCT differentiation method that could be automatically implemented by computerized ECG interpretation (CEI) software.

Methods: In a two-part study, we developed and validated a logistic regression model (i. Read More

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http://dx.doi.org/10.1016/j.jelectrocard.2019.02.008DOI Listing
February 2019
4 Reads

Frequency and characteristics of exercise-induced second-degree atrioventricular block in patients undergoing stress testing.

J Electrocardiol 2019 Mar 14;54:54-60. Epub 2019 Mar 14.

Department of Cardiovascular Medicine, Mayo Clinic, Rochester, MN, United States of America.

Background: Spontaneous second-degree atrioventricular block induced by exercise (Ex2AVB) is rare, but it can cause profound exercise intolerance.

Objective: We sought to determine the frequency of Ex2AVB in our exercise testing practice and to describe characteristics of patients with Ex2AVB. We hypothesized that the number of patients would be small, but they would require invasive treatment. Read More

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http://dx.doi.org/10.1016/j.jelectrocard.2019.03.009DOI Listing
March 2019
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Prognostic significance of electrocardiographic right ventricular hypertrophy in the general population.

J Electrocardiol 2019 Mar 13;54:49-53. Epub 2019 Mar 13.

Epidemiological Cardiology Research Center (EPICARE), Department of Epidemiology and Prevention, Wake Forest School of Medicine, Winston-Salem, NC, USA; Department of Internal Medicine, Section on Cardiology, Wake Forest School of Medicine, Winston-Salem, NC, USA.

Background: Echocardiographically detected right ventricular hypertrophy (RVH) is associated with cardiovascular disease (CVD) and mortality. However, the prognostic significance of electrocardiographic (ECG)RVH criteria as predictors of poor outcomes in the general population is unclear.

Methods: This study included 7857 participants (59. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S00220736183090
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http://dx.doi.org/10.1016/j.jelectrocard.2019.03.008DOI Listing
March 2019
4 Reads
1.363 Impact Factor

High density mapping of aortic cusps improves near field detection of pre-potentials during premature ventricular contractions.

J Electrocardiol 2019 Mar 7;54:47-48. Epub 2019 Mar 7.

Arrhythmology Unit - Ospedale S. Giovanni Calibita, Fatebenefratelli Isola Tiberina, Rome, Italy.

Recognition of pre-potentials during activation mapping of aortic cusp premature ventricular contractions is useful to localize the precise site of origin and is an indicator of successful ablation, but sometimes these electrograms can be blunt and have low amplitude. High resolution mapping in the aortic cusp region allows improved near field detection of these signals in very few beats. Read More

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http://dx.doi.org/10.1016/j.jelectrocard.2019.03.007DOI Listing
March 2019
4 Reads

Junctional ST-depression and tall symmetrical T-waves with an obtuse marginal artery occlusion: A case report.

J Electrocardiol 2019 Mar 7;54:40-42. Epub 2019 Mar 7.

Department of Cardiology, Wenzhou People's Hospital, Wenzhou, Zhejiang Province 325000, PR China. Electronic address:

A 54-year-old man presented to the emergency department with chest pain and electrocardiogram (ECG) changes of acute ST-segment elevation myocardial infarction (STEMI) and junctional ST-depression with tall symmetrical T-waves (de Winter T-wave) in the lateral and inferior leads. Emergent coronary angiography revealed a culprit lesion in the gigantic obtuse marginal artery (OM). This case demonstrates the de Winter T-wave can occur in a patient with an acute occlusion of OM. Read More

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http://dx.doi.org/10.1016/j.jelectrocard.2019.03.006DOI Listing
March 2019
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The effects of pulmonary valve replacement on QRS duration in repaired tetralogy of Fallot patients with pulmonary regurgitation.

J Electrocardiol 2019 Feb 27;54:36-39. Epub 2019 Feb 27.

Ahmanson/UCLA Adult Congenital Heart Disease Center, Division of Cardiology, David Geffen School of Medicine at UCLA, Los Angeles, CA, United States of America. Electronic address:

Introduction: Chronic pulmonary regurgitation (PR) following surgical correction in Tetralogy of Fallot (TOF) leads to right ventricular (RV) dysfunction, arrhythmias and sudden cardiac death (SCD). Pulmonary valve replacement (PVR) decreases PR and improves RV function, but data regarding QRS duration reduction remain scarce.

Methods: All adult TOF patients undergoing transcatheter PVR or surgical PVR from 2010 to 2016 were included. Read More

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http://dx.doi.org/10.1016/j.jelectrocard.2019.02.010DOI Listing
February 2019
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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

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

Predictive value of interatrial block for atrial fibrillation in elderly subjects enrolled in the PREDICTOR study.

J Electrocardiol 2019 Feb 28;54:22-27. Epub 2019 Feb 28.

Department of Cardiovascular Research, IRCCSS-Istituto di Ricerche Farmacologiche Mario Negri, Milan, Italy.

Aims: The principal aims of this prospective multicentre study were to relate the presence of interatrial block (IAB) with a late occurrence of atrial fibrillation (AF) and to demonstrate the independence of the IAB effect on risk of AF from structural cardiac alterations.

Methods: This prospective study was the follow-up of subjects included in the PREDICTOR cross-sectional population-based study. Subjects were divided into groups according to IAB status. Read More

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http://dx.doi.org/10.1016/j.jelectrocard.2019.02.011DOI Listing
February 2019

Second-degree interatrial block: A case series.

J Electrocardiol 2019 Feb 7;54:18-21. Epub 2019 Feb 7.

Division of Cardiology, Kingston Health Science Center, Queen's University, Kingston, Ontario, Canada.

Advanced interatrial block (IAB) (P-wave ≥120 ms and biphasic P-wave in leads II, III and aVF) is a prevalent ECG pattern frequently associated with supraventricular arrhythmias and stroke, especially in patients with structural heart disease. Intermittent IAB is a much more poorly defined electrocardiographic entity with uncertain clinical significance. In this case series, we review and analyze eight cases of second degree intermittent IAB. Read More

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http://dx.doi.org/10.1016/j.jelectrocard.2019.02.001DOI Listing
February 2019
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PR depression with multi‑lead ST elevation and ST depression in aVR: Is it always acute pericarditis?

J Electrocardiol 2019 Jan 24;54:13-17. Epub 2019 Jan 24.

Heart Center, Tampere University Hospital and Faculty of Medicine and Life Sciences, University of Tampere, Finland.

The classic electrocardiographic (ECG) manifestation of stage I of acute pericarditis is diffuse ST elevation and PR depression with ST depression in lead aVR. One of the most common conditions, that is often confused with acute pericarditis, is the benign diffuse ST elevation, termed "early repolarization with ST elevation" (ERSTE). ERSTE often presents with diffuse ST elevation in the inferior and anterolateral leads, with or without terminal QRS notching or slurring. Read More

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http://dx.doi.org/10.1016/j.jelectrocard.2019.01.085DOI Listing
January 2019
2 Reads

Abnormal P-terminal force and deep terminal negativity in V1 in conditions other than lead misplacement.

Authors:
Lovely Chhabra

J Electrocardiol 2019 Feb 12. Epub 2019 Feb 12.

Heartland Regional Medical Center, Marion, IL 62959, USA; Southern Illinois University, Carbondale, IL, USA. Electronic address:

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http://dx.doi.org/10.1016/j.jelectrocard.2019.02.006DOI Listing
February 2019
1 Read
1.363 Impact Factor

Diffuse ST segment depression and ST segment elevation in lead aVR and V1 by left circumflex artery occlusion.

J Electrocardiol 2019 Feb 12;54:10-12. Epub 2019 Feb 12.

Department of Cardiology, Jiading District Central Hospital Affiliated Shanghai University of Medical and Health Sciences, China. Electronic address:

The current guidelines for resting electrocardiograms of diffuse ST segment depression coupled with ST segment elevation in aVR and/or V1 that are otherwise unremarkable indicate multivessel or left main coronary artery obstruction. However, our case meets the above electrocardiogram changes, but involves left circumflex artery occlusion. Read More

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http://dx.doi.org/10.1016/j.jelectrocard.2019.02.004DOI Listing
February 2019
1 Read

Correction of the QRS duration for heart rate.

J Electrocardiol 2019 Feb 12;54:1-4. Epub 2019 Feb 12.

AMPS, LLC, New York, NY, United States of America.

Objective: To determine the clinical value of correcting the QRS duration for heart rate.

Background: We recently observed [1] that the QRS duration shortens during spontaneous increases in heart rate. In the current study, we analyzed ECG and pharmacokinetic data of 21 subjects who received quinidine in a recent study [2]. Read More

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http://dx.doi.org/10.1016/j.jelectrocard.2019.02.005DOI Listing
February 2019
3 Reads

A proposal for a reconstruction (derivation) of V1-V6 using leads I, II, and a "sternal notch lead": A solution to the problem of non-reproducibility of precordial leads in serial 12-lead standard electrocardiograms.

Authors:
John E Madias

J Electrocardiol 2019 Mar - Apr;53:109-111. Epub 2019 Jan 31.

Icahn School of Medicine at Mount Sinai, New York, NY, United States of America; Division of Cardiology, Elmhurst Hospital Center, Elmhurst, NY, United States of America. Electronic address:

Variation of the amplitude and morphology of V1-V6 leads in serial ECGs, due to variation in the placement of V1-V6 recording electrodes, and the noncompliance in placing the V1-V6 electrodes at the recommended thoracic loci, are 2 problems which have defied solution since the advent of electrocardiography. A proposal is presented herein of a set of 3 recorded leads (conventional limb leads I and II, and a lead recorded via an electrode adjacent to the sternal notch [SNL]), aimed at reconstructing the V1-V6 leads, as a function of the 3 recorded leads, employing patient-specific and general (population) coefficients. The SNL electrode is expected to be placed at a designated thoracic site without ambiguity, and thus in conjunction with the limb leads I and II, to yield a hybrid 12-lead ECG with the conventional 6 limb leads and 6 derived V1-V6 leads. Read More

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http://dx.doi.org/10.1016/j.jelectrocard.2019.01.091DOI Listing
January 2019

Evaluation of thoracic impedance trends for implant-based remote monitoring in heart failure patients - Results from the (J-)HomeCARE-II Study.

J Electrocardiol 2019 Mar - Apr;53:100-108. Epub 2019 Jan 25.

Department of Cardiology, Tokyo Women's Medical University, Tokyo, Japan.

Aims: Remote monitoring by implantable devices substantially improves management of heart failure (HF) patients by providing diagnostic day-to-day data. The use of thoracic impedance (TI) as a surrogate measure of fluid accumulation is still strongly debated. The multicenter HomeCARE-II study evaluated clinically apparent HF events in the context of remote device diagnostics, focusing on the controversial role of TI. Read More

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http://dx.doi.org/10.1016/j.jelectrocard.2019.01.004DOI Listing
January 2019
3 Reads

Cardiac magnetic resonance imaging may offer additional anatomical correlation in pericarditis.

Authors:
Lovely Chhabra

J Electrocardiol 2019 Jan 30. Epub 2019 Jan 30.

Heartland Regional Medical Center, Marion, IL 62959, USA; Southern Illinois University, Carbondale, IL, USA. Electronic address:

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http://dx.doi.org/10.1016/j.jelectrocard.2019.01.090DOI Listing
January 2019
1.363 Impact Factor

Evaluation of electrocardiographic ventricular repolarization parameters in extreme obesity.

J Electrocardiol 2018 Dec 6;53:36-39. Epub 2018 Dec 6.

Abant Izzet Baysal University, Medical Faculty, Cardiology Department, Bolu, Turkey.

Background And Objectives: The risk of sudden death and cardiac arrhythmia increases in morbidly obese patients. We aimed to evaluate the marker of arrhythmias such as Tp-e/QT, Tp-e/QTc, Tp-e/JT and Tp-e/JTc ratios in extreme obesity.

Methods: The study included 41 extremely obese patients and 41 control subjects. Read More

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http://dx.doi.org/10.1016/j.jelectrocard.2018.12.003DOI Listing
December 2018
2 Reads

Lambda-like ST-elevation with Brody Effect.

J Electrocardiol 2019 Jan 24. Epub 2019 Jan 24.

BIK Hospital, Cardiology Department, Budapest, Hungary.

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http://dx.doi.org/10.1016/j.jelectrocard.2019.01.087DOI Listing
January 2019
1 Read

Sudden death in mild hypertrophic cardiomyopathy with compound DSG2/DSC2/MYH6 mutations: Revisiting phenotype after genetic assessment in a master runner athlete.

J Electrocardiol 2019 Mar - Apr;53:95-99. Epub 2019 Jan 2.

Division of Medical Genetics, Fondazione IRCCS Casa Sollievo della Sofferenza, 71013 San Giovanni Rotondo, (FG), Italy. Electronic address:

Cardiomyopathies represent a well-known cause of heart failure and sudden death. Although cardiomyopathies are generally categorized in distinct nosographic entities, characterized by single gene-to-disease causal relationships, recently, oligogenic mutations have also been associated to relevant cardiac clinical features. We report the case of a master athlete carrying trigenic mutations in desmoglein-2 (DSG2), desmocollin-2 (DSC2) and heavy chain myosin 6 (MYH6), which determine a mild hypertrophic phenotype associated both to ventricular tachyarrhythmias and atrio-ventricular block. Read More

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http://dx.doi.org/10.1016/j.jelectrocard.2019.01.002DOI Listing
January 2019
2 Reads

Home use of a compact, 12‑lead ECG recording system for newborns.

J Electrocardiol 2019 Mar - Apr;53:89-94. Epub 2019 Jan 25.

Division of Pediatric Cardiology, Department of Pediatrics, Los Angeles Biomedical Research Institute, Harbor-UCLA Medical Center, Torrance, CA, USA; David Geffen School of Medicine at UCLA, Los Angeles, CA, USA.

Background: An easy-to-operate ECG recorder should be useful for newborn screening for heart conditions, by health care workers - or parents. We developed a one-piece electrode strip and a compact, 12‑lead ECG recorder for newborns.

Method: We enrolled 2582 newborns in a trial to assess abilities of parents to record a 12‑lead ECG on their infants (2-4 weeks-old). Read More

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http://dx.doi.org/10.1016/j.jelectrocard.2019.01.086DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6458066PMC
January 2019
5 Reads

Common source of miscalculation and misclassification of P-wave negativity and P-wave terminal force in lead V1.

J Electrocardiol 2019 Mar - Apr;53:85-88. Epub 2019 Jan 25.

Department of Cardiology, Copenhagen University Hospital of Bispebjerg, Bispebjerg Bakke 23, 2400 Copenhagen, Denmark.

Background: P-wave terminal force (PTF) > 4000 ms·μV and deep terminal negativity (DTN) are ECG markers of left atrial abnormality associated with both atrial fibrillation and stroke. When the precordial lead V1 is placed higher than the correct position in the fourth intercostal space, it may cause increased PTF and DTN. Several studies have documented that electrode misplacement, especially high placement, is common. Read More

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http://dx.doi.org/10.1016/j.jelectrocard.2019.01.088DOI Listing
January 2019
6 Reads

Coefficient of variation of P-wave duration measured using an automated measurement system predicts recurrence of atrial fibrillation.

J Electrocardiol 2019 Mar - Apr;53:79-84. Epub 2019 Jan 25.

Second Department of Internal Medicine, University of Toyama, Toyama, Japan.

Background: P-wave parameters representing atrial conduction heterogeneity are associated with recurrence of atrial fibrillation (AF) after catheter ablation. However, intra- and inter-observer variabilities are unavoidable during manual measurement of P-wave parameters.

Methods: The study included 201 patients with paroxysmal AF who underwent catheter ablation. Read More

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http://dx.doi.org/10.1016/j.jelectrocard.2019.01.089DOI Listing
January 2019
2 Reads

Medical misinformation: Vet the message!

Authors:

J Electrocardiol 2019 Mar - Apr;53:112-113. Epub 2019 Jan 28.

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http://dx.doi.org/10.1016/j.jelectrocard.2018.12.016DOI Listing
January 2019
1 Read

The presence of late potentials after percutaneous coronary intervention for the treatment of acute coronary syndrome as a predictor for future significant cardiac events resulting in re-hospitalization.

J Electrocardiol 2019 Mar - Apr;53:71-78. Epub 2019 Jan 2.

Department of Cardiovascular Medicine, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa 259-1193, Japan. Electronic address:

Introduction: We previously reported that LP positive patients after percutaneous coronary intervention (PCI) had higher rate of re-hospitalization in the small-scale study (135 patients). In this study, we evaluated correlation between LP and later cardiac events leading to re-hospitalization more extensively in greater population.

Methods And Results: A 24-h high-resolution (HR) ambulatory electrocardiogram (ECG) was performed in 421 patients that received PCI for the treatment of acute coronary syndrome (ACS) within 30 days. Read More

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http://dx.doi.org/10.1016/j.jelectrocard.2019.01.003DOI Listing
January 2019
2 Reads

Evaluation of ventricular repolarization parameters during migraine attacks.

J Electrocardiol 2019 Mar - Apr;53:66-70. Epub 2018 Dec 21.

Department of Cardiology, University of Health Sciences, Erzurum Education and Research Hospital, Erzurum, Turkey.

Aims: Migraine is a chronic neurovascular disorder characterized by intermittent episodes of severe headache. Abnormalities in the autonomic nervous system (sympathetic and parasympathetic nervous systems) have been detected during migraine-free periods in patients with migraine. In these patients, disrupted autonomic innervations of the heart and coronary arteries may lead to electrocardiographic changes during a migraine attack. Read More

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http://dx.doi.org/10.1016/j.jelectrocard.2018.12.014DOI Listing
December 2018
1 Read

I have no time.

Authors:
Adrian Baranchuk

J Electrocardiol 2019 Mar - Apr;53:64-65. Epub 2019 Jan 15.

Division of Cardiology, Kingston Health Science Center, Queen's University, Kingston, Ontario, Canada. Electronic address:

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http://dx.doi.org/10.1016/j.jelectrocard.2019.01.083DOI Listing
January 2019
5 Reads

Brugada phenocopy in a patient underdoing pericardiocentesis for a large idiopathic pericardial effusion.

J Electrocardiol 2019 Jan 7. Epub 2019 Jan 7.

First Cardiology Department, Hippokration General Hospital, National and Kapodistrian University of Athens, Greece.

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http://dx.doi.org/10.1016/j.jelectrocard.2019.01.081DOI Listing
January 2019
8 Reads

Validation of a novel single lead ambulatory ECG monitor - Cardiostat™ - Compared to a standard ECG Holter monitoring.

J Electrocardiol 2019 Mar - Apr;53:57-63. Epub 2018 Dec 19.

IUCPQ - Institut Universitaire de Cardiologie et de Pneumologie de Québec, Canada.

Background: Cardiostat™ is a single lead ambulatory ECG monitor. Recording is made through 2 electrodes positioned in a lead 1-like configuration. We first validated its accuracy for atrial fibrillation detection compared to a 12-lead ECG. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S00220736183056
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http://dx.doi.org/10.1016/j.jelectrocard.2018.12.011DOI Listing
December 2018
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ST-segment elevation and the Tpeak-Tend/QT ratio predict the occurrence of malignant arrhythmia events in patients with vasospastic angina.

J Electrocardiol 2019 Mar - Apr;53:52-56. Epub 2019 Jan 3.

Department of Cardiology, People's Hospital of Zhengzhou University (Henan provincial people's hospital), Fuwai Central China Cardiovascular Hospital, Zhengzhou, Henan Province, China.

Background: ST-segment elevation (STE) and an increased Tpeak-Tend interval (Tp-e) have prognostic value for malignant arrhythmia events (MAEs) in patients with ST-segment elevation myocardial infarction (STEMI) and Brugada syndrome. Whether STE could predict MAEs and has an electrophysiological relationship with Tp-e in electrocardiogram (ECG) of vasospastic angina (VA) patients needs to be elucidated.

Methods: Sixty-five patients with VA and 23 patients with VA complicated by MAEs were enrolled. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S00220736183063
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http://dx.doi.org/10.1016/j.jelectrocard.2019.01.001DOI Listing
January 2019
15 Reads

Electrical remodelling post cardiac resynchronization therapy in patients with ischemic and non-ischemic heart failure.

J Electrocardiol 2019 Mar - Apr;53:44-51. Epub 2018 Dec 4.

Flinders Medical Centre, Flinders Drive, Bedford Park 5042, South Australia, Australia. Electronic address:

Background: The beneficial effects of cardiac resynchronization therapy (CRT) in heart failure are largely considered to be due to improved mechanical contractility. The contributory role of electrical remodelling is less clear. We sought to evaluate the impact of electrical remodelling in these patients. Read More

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http://dx.doi.org/10.1016/j.jelectrocard.2018.12.001DOI Listing
December 2018
2 Reads

Double de novo mutations in dilated cardiomyopathy with cardiac arrest.

J Electrocardiol 2019 Mar - Apr;53:40-43. Epub 2018 Dec 21.

University of Foggia, Department of Medical & Surgical Sciences, Foggia, Italy. Electronic address:

Here we report the identification of two novel mutations in a previously asymptomatic young man who suffered an out-of-hospital sudden cardiac arrest. During following evaluation, diagnosis of early stage dilated cardiomyopathy was established, while electrocardiogram monitoring showed frequent complex ventricular arrhythmias, incomplete right bundle branch block and prolonged QT duration. No reversible causes explaining the clinical presentation were established and an automatic implantable cardioverter defibrillator was therefore implanted. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S00220736183073
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http://dx.doi.org/10.1016/j.jelectrocard.2018.12.015DOI Listing
December 2018
19 Reads

A three-dimensional computed model of ST segment abnormality in type 1 Brugada Pattern: A key role of right ventricular outflow tract orientation?

J Electrocardiol 2019 Mar - Apr;53:31-35. Epub 2018 Dec 19.

Department of Clinical and Experimental Medicine, University Hospital of Messina, Italy.

Since its first description, Brugada Syndrome is characterized by definite ECG abnormalities (J wave, elevated ST segment) confined in right precordial leads. Brugada Pattern (BP) could be found in one or more right precordial leads, at conventional or higher intercostal spaces. A recent study, conducted by our group, reported that slightly less than one half of patients with type 1 BP show a definite ST segment depression (≥0. Read More

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http://dx.doi.org/10.1016/j.jelectrocard.2018.12.013DOI Listing
December 2018
3 Reads

Tachycardia with alternating pacemaker spikes: Is it pacemaker malfunction?

J Electrocardiol 2019 Mar - Apr;53:28-30. Epub 2018 Dec 18.

Department of Medicine, Section of Cardiology at Baylor College of Medicine and Texas Heart Institute, Baylor St. Luke's Medical Center, Houston, Texas, United States of America. Electronic address:

A 67 year old female with diabetes mellitus type 2, chronic kidney disease, ischemic cardiomyopathy, status post biventricular implantable cardioverter-defibrillator presented to the Heart Failure clinic for routine follow up with a tachycardia with alternating pacemaker spikes. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S00220736183074
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http://dx.doi.org/10.1016/j.jelectrocard.2018.12.012DOI Listing
December 2018
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Temporal stability and specificity of high bipolar electrogram entropy regions in sustained atrial fibrillation: Implications for mapping.

J Electrocardiol 2019 Mar - Apr;53:18-27. Epub 2018 Nov 20.

College of Medicine and Public Health, Flinders University of South Australia, Adelaide, SA, Australia; Department of Cardiovascular Medicine, Flinders Medical Centre, Adelaide, SA, Australia. Electronic address:

Background: The potential utility of entropy (En) for atrial fibrillation (AF) mapping has been demonstrated in previous studies by multiple groups, where an association between high bipolar electrogram (EGM) entropy and the pivot of rotors has been shown. Though En is potentially attractive new approach to ablation, no studies have examined its temporal stability and specificity, which are critical to the application of entropy to clinical ablation. In the current study, we sought to objectively measure the temporal stability and specificity of bipolar EGM entropy in medium to long term recordings using three studies: i) a human basket catheter AF study, ii) a tachypaced sheep AF study and iii) a computer simulation study. Read More

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http://dx.doi.org/10.1016/j.jelectrocard.2018.11.014DOI Listing
November 2018
2 Reads