4,974 results match your criteria Journal of Electrocardiology[Journal]


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

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

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

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 Jan 31;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 Jan 25;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
1 Read

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

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
1 Read

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

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 Jan 2;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
1 Read

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

J Electrocardiol 2019 Jan 25;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
January 2019

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

J Electrocardiol 2019 Jan 25;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

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

J Electrocardiol 2019 Jan 25;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 Jan 27. Epub 2019 Jan 27.

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

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 Jan 2;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 2018 Dec 21;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

I have no time.

Authors:
Adrian Baranchuk

J Electrocardiol 2019 Jan 15;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
1 Read

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
3 Reads

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

J Electrocardiol 2018 Dec 19;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
7 Reads

ST-segment elevation and the Tpeak-Tend/QT ratio predict the occurrence of malignant arrhythmia events in patients with vasospastic angina.

J Electrocardiol 2019 Jan 3;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
7 Reads

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

J Electrocardiol 2018 Dec 4;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
1 Read

Double de novo mutations in dilated cardiomyopathy with cardiac arrest.

J Electrocardiol 2018 Dec 21;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
5 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 2018 Dec 19;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
2 Reads

Tachycardia with alternating pacemaker spikes: Is it pacemaker malfunction?

J Electrocardiol 2018 Dec 18;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
8 Reads

Temporal stability and specificity of high bipolar electrogram entropy regions in sustained atrial fibrillation: Implications for mapping.

J Electrocardiol 2018 Nov 20;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
1 Read

Localization of the culprit artery in inferior myocardial infarction: Influence of the point of measurement of ST segment.

J Electrocardiol 2018 Dec 13;53:8-12. Epub 2018 Dec 13.

Cardiology Department, University Hospital Virgen Macarena, Av. Dr Fedriani, 3. Sevilla, Spain. Electronic address:

Background: There are several approaches widely used in the localization of the responsible artery in inferior myocardial infarction. However, the existing papers show differences in the point where the ST segment is measured. The purpose of our investigation is to analyse the influence of the point at which elevation of the ST segment is measured on the results of these algorithms. Read More

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http://dx.doi.org/10.1016/j.jelectrocard.2018.12.010DOI Listing
December 2018
1 Read

Prevalence, significance and reversal of abnormal P-wave indices in hypertension: A review and meta-analysis.

J Electrocardiol 2018 Dec 12;53:13-17. Epub 2018 Dec 12.

Department of Medical Informatics, Niigata University Medical and Dental Hospital, Niigata, Japan.

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http://dx.doi.org/10.1016/j.jelectrocard.2018.12.008DOI Listing
December 2018

Lack of influence of sex hormones on Brugada syndrome: The role of S-nitrosylation of SCN5A.

J Electrocardiol 2018 Dec 12. Epub 2018 Dec 12.

Cardiologia Ospedale San Vincenzo Taormina, ASP Messina, Contrada Sirina, 98039 Taormina, Italy. Electronic address:

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http://dx.doi.org/10.1016/j.jelectrocard.2018.12.006DOI Listing
December 2018
16 Reads
1.363 Impact Factor

Management of a leadless pacemaker recall via extraction in a patient with a history of multiple previous device implants.

J Electrocardiol 2018 Dec 12;53:5-7. Epub 2018 Dec 12.

Chair and Unit of Cardiology, University of Brescia, Spedali Civili Hospital, Brescia, Italy. Electronic address:

We describe a management strategy of a leadless pacemaker recall (LP) via extraction in a pacemaker-dependent patient with a history of multiple previous device implants. We performed a two-step procedure. First, we implanted a second LP in the right ventricle. Read More

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http://dx.doi.org/10.1016/j.jelectrocard.2018.12.009DOI Listing
December 2018
2 Reads

Antidromic tachycardia with RR interval variability: Take a closer look at the VH intervals.

J Electrocardiol 2018 Dec 12;53:1-4. Epub 2018 Dec 12.

Arrhythmia Unit, Cardiology Department, Fundación Jiménez Díaz - Quirón Salud, Madrid, Spain.

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https://linkinghub.elsevier.com/retrieve/pii/S00220736183072
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http://dx.doi.org/10.1016/j.jelectrocard.2018.12.007DOI Listing
December 2018
3 Reads

Atypical ischemic repolarization in right bundle branch block.

J Electrocardiol 2019 Jan - Feb;52:117-118. Epub 2018 Dec 6.

Department "A" Medical Area, Instituto Nacional de Cardiología Ignacio Chávez, Juan Badiano 1, Belisario Domínguez - Sección XVI, Tlalpan, Mexico City PO 14080, Mexico.

A 70-year-old male presented to emergency room 16 h after the onset of acute chest pain. Initial ECG showed sinus rhythm with a wide QRS and right bundle branch block (RBBB) with concordant and symmetric T waves in V1-V2. A plausible explanation for the atypical positive T waves in leads V1-V2 in conjunction with RBBB could be non-reperfused lateral MI (LMI) as a "mirror-image" of inverted T waves in the posterior leads V7-V9. Read More

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http://dx.doi.org/10.1016/j.jelectrocard.2018.12.004DOI Listing
December 2018
1 Read

Diurnal cardiac sympathetic hyperactivity after exposure to acute particulate matter 2.5 air pollution.

J Electrocardiol 2019 Jan - Feb;52:112-116. Epub 2018 Nov 15.

Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital. Taiwan; Institute of Clinical Medicine, Cardiovascular Research Institute, National Yang-Ming University, Taiwan.

Background: Ambient fine particulate matter (PM2.5) exposure is associated with increased cardiovascular and cardiac arrhythmias events, but the detailed mechanism remains unclear.

Objective: We aimed to investigate the effect of PM2. Read More

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http://dx.doi.org/10.1016/j.jelectrocard.2018.11.012DOI Listing
November 2018
2 Reads

A tick beat in the electrocardiogram: Persistent third degree block as only manifestation of Lyme disease.

J Electrocardiol 2019 Jan - Feb;52:109-111. Epub 2018 Dec 6.

Internal Medicine Department, Hospital Universitario, Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, Mexico.

Lyme disease is the most common tick-borne illness in North America. A 23-year-old female presented to our emergency department with a chief complaint of sudden dyspnea and chest pain. An electrocardiogram revealed a third degree heart block. Read More

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http://dx.doi.org/10.1016/j.jelectrocard.2018.12.005DOI Listing
December 2018
2 Reads

Catheter ablation of a right epicardial accessory pathway via the small cardiac vein: Two case reports: Small cardiac vein-related accessory pathway.

J Electrocardiol 2019 Jan - Feb;52:106-108. Epub 2018 Dec 4.

Cardiovascular Division, Beijing Anzhen Hospital, Capital Medical University, Beijing, China.

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http://dx.doi.org/10.1016/j.jelectrocard.2018.12.002DOI Listing
December 2018
3 Reads

A comprehensive meta-analysis on relationship between CYP11B2 rs1799998 polymorphism and atrial fibrillation.

J Electrocardiol 2019 Jan - Feb;52:101-105. Epub 2018 Nov 10.

Department of cardiovascular medicine, Yantai traditional Chinese medicine hospital, Yantai, Shandong, China. Electronic address:

Background: The correlation between CYP11B2 rs1799998 polymorphism and atrial fibrillation (AF) was analyzed by several studies, but the results of these studies were inconsistent. Thus, we performed this study to obtain a more conclusive result on relationship between CYP11B2 rs1799998 polymorphism and AF.

Methods: Eligible studies were searched in PubMed, Medline and Embase. Read More

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http://dx.doi.org/10.1016/j.jelectrocard.2018.11.009DOI Listing
November 2018
1 Read

Lack of improvement in autonomic cardiac tone after sacubitril/valsartan at lower than target doses.

J Electrocardiol 2019 Jan - Feb;52:99-100. Epub 2018 Nov 28.

Department of Cardiology, Virgen de la Arrixaca University Hospital, Murcia, Spain.

Autonomic regulation plays a role in the progression of heart failure with reduced ejection fraction (HrEF).Twenty-one HFrEF patients, 60.8 ± 13. Read More

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http://dx.doi.org/10.1016/j.jelectrocard.2018.11.015DOI Listing
November 2018
2 Reads

Spiked helmet pattern ST elevation in subarachnoid hemorrhage.

J Electrocardiol 2019 Jan - Feb;52:96-98. Epub 2018 Nov 28.

Department of Internal Medicine, Carolinas Medical Center, Charlotte, NC, USA. Electronic address:

Subarachnoid hemorrhage (SAH) is occasionally associated with the electrocardiographic (ECG) pattern of ST-segment elevation myocardial infarction (STEMI). Missing the true clinical diagnosis can result in inappropriate and harmful interventions. We report the case of a 40-year-old female who was found down. Read More

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http://dx.doi.org/10.1016/j.jelectrocard.2018.11.016DOI Listing
November 2018
2 Reads

Yield and consistency of arrhythmia detection with patch electrocardiographic monitoring: The Multi-Ethnic Study of Atherosclerosis.

J Electrocardiol 2018 Nov - Dec;51(6):997-1002. Epub 2018 Jul 30.

Department of Biostatistics, University of Washington; 1959 NE Pacific Ave, Seattle, WA 98195, USA. Electronic address:

Background: Patch electrocardiographic (ECG) monitors permit extended noninvasive ambulatory monitoring. To guide use of these devices, information is needed about their performance. We sought to determine in a large general population sample the acceptability of patch ECG monitors, the yield of arrhythmia detection, and the consistency of findings in participants monitored twice. Read More

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http://dx.doi.org/10.1016/j.jelectrocard.2018.07.027DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6278608PMC
July 2018
5 Reads

Reference values of ECG parameters derived from 906 echocardiographically confirmed healthy Indian children: A population-based study from Gujarat.

J Electrocardiol 2018 Nov - Dec;51(6):991-995. Epub 2018 Jul 29.

Cardiac Safety Services, IQVIA, Mumbai, India; Lilavati Hospital & Research Centre, Mumbai, India.

Introduction: There are few published studies on reference ranges of ECG parameters in children; some ethnic differences have been described.

Methods: We studied digital 12‑lead ECGs (1000 samples/s) from 906 healthy rural Indian children (467 boys: 439 girls) aged 5-15 years. PR, QRS, and QT were measured using superimposed median beat. Read More

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http://dx.doi.org/10.1016/j.jelectrocard.2018.07.018DOI Listing
July 2018
1 Read

Novel electrocardiographic features in carriers of hypertrophic cardiomyopathy causing sarcomeric mutations.

J Electrocardiol 2018 Nov - Dec;51(6):983-989. Epub 2018 Jul 17.

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

Objectives: The sensitivity and specificity of the conventional 12-lead ECG to identify carriers of hypertrophic cardiomyopathy (HCM) - causing mutations without left ventricular hypertrophy (LVH) has been limited. We assessed the ability of novel electrocardiographic parameters to improve the detection of HCM mutation carriers.

Methods: We studied 140 carriers (G+) of the TPM1-Asp175Asn or MYBPC3-Gln1061X pathogenic variants for HCM: The G+/LVH+ group (n = 98) consisted of mutation carriers with LVH and the G+/LVH- group (n = 42) without LVH. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S00220736183040
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http://dx.doi.org/10.1016/j.jelectrocard.2018.07.009DOI Listing
July 2018
9 Reads

Alternating Wenckebach cycles with right bundle branch block.

J Electrocardiol 2018 Nov - Dec;51(6):981-982. Epub 2018 Aug 6.

Washington University School of Medicine/Barnes Jewish Hospital, Department of Medicine, Division of Cardiology, 660 South Euclid Avenue, St. Louis, MO 63110-1093, United States of America.

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http://dx.doi.org/10.1016/j.jelectrocard.2018.08.002DOI Listing
August 2018
1 Read

In inferior myocardial infarction, neither ST elevation in lead V1 nor ST depression in lead I are reliable findings for the diagnosis of right ventricular infarction.

J Electrocardiol 2018 Nov - Dec;51(6):977-980. Epub 2018 Aug 10.

Hennepin County Medical Center, University of Minnesota School of Medicine., United States. Electronic address:

Objective: In the presence of inferior myocardial infarction (MI), ST depression (STD) in lead I has been claimed to be accurate for diagnosis of right ventricular (RV) MI. We sought to evaluate this claim and also whether ST Elevation (STE) in lead V1 would be helpful, with or without STD in V2.

Methods: Retrospective study of consecutive inferior STEMI, comparing ECGs of patients with, to those without, RVMI, as determined by angiographic coronary occlusion proximal to the RV marginal branch. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S00220736183022
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http://dx.doi.org/10.1016/j.jelectrocard.2018.08.010DOI Listing
August 2018
4 Reads

Prevalence of atrial fibrillation with insertable cardiac monitors in cryptogenic stroke: A single-center experience.

J Electrocardiol 2018 Nov - Dec;51(6):973-976. Epub 2018 Aug 25.

John Nasseff Neuroscience Specialty Clinic and the United Hospital Comprehensive Stroke Center, Allina Health, St. Paul, MN, United States of America.

Background: The use of insertable cardiac monitors (ICM) has increased the rate of detection of atrial fibrillation (AF) among cryptogenic stroke (CS) patients. We describe a single-center experience for AF detection among CS patients receiving ICMs upon discharge after the index stroke event and attempt to identify predictors for AF detection.

Methods: From April 2014 to October 2017, patients receiving ICMs for CS who underwent >60 days of monitoring were reviewed. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S00220736183026
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http://dx.doi.org/10.1016/j.jelectrocard.2018.08.033DOI Listing
August 2018
7 Reads

Prognostic value of frontal QRS-T angle in patients undergoing myocardial revascularization or cardiac valve surgery.

J Electrocardiol 2018 Nov - Dec;51(6):967-972. Epub 2018 Aug 23.

Department of Medicine and Surgery, University of Parma, Italy.

Background: An abnormal frontal QRS-T angle (fQRSTa) is associated with increased risk of death in primary and secondary cardiovascular prevention. The aim of this study was to evaluate the fQRSTa prognostic role in patients undergoing myocardial revascularization and/or cardiac valve surgery.

Methods: We enrolled and prospectively followed for 48 ± 26 months 939 subjects with available QRS and T axis data; mean age was 68 ± 12 years, 449 patients (48%) underwent myocardial revascularization, 333 (35%) cardiac valve surgery, 94 (10%) valve plus bypass graft surgery and 63 (7%) cardiac surgery for other cardiovascular (CV) diseases. Read More

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http://dx.doi.org/10.1016/j.jelectrocard.2018.08.028DOI Listing
August 2018
3 Reads
1.363 Impact Factor

Brugada phenocopy associated with left ventricular aneurysm.

J Electrocardiol 2018 Nov - Dec;51(6):963-965. Epub 2018 Aug 23.

Division of Cardiology, Kingston Health Sciences Centre, Queen's University, Kingston, ON, Canada.

Brugada phenocopies (BrP) are clinical entities that are characterized by ECG patterns identical to those of Brugada syndrome, but are the result of various clinical conditions. We describe the case of a 41-year-old male who exhibited BrP due to a left ventricular aneurysm in the context of chronic coronary artery disease. Read More

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http://dx.doi.org/10.1016/j.jelectrocard.2018.08.032DOI Listing
August 2018
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Electrocardiomatrix facilitates qualitative identification of diminished heart rate variability in critically ill patients shortly before cardiac arrest.

J Electrocardiol 2018 Nov - Dec;51(6):955-961. Epub 2018 Aug 8.

Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, MI, United States; Department of Neurology, Michigan Medicine, Ann Arbor, MI, United States; Michigan Center for Integrative Research in Critical Care, University of Michigan, Ann Arbor, MI, United States. Electronic address:

Background: Although heart rate variability (HRV) has diagnostic and prognostic value for the assessment of cardiac risk, HRV analysis is not routinely performed in a hospital setting. Current HRV analysis methods are primarily quantitative; such methods are sensitive to signal contamination and require extensive post hoc processing.

Methods And Results: Raw electrocardiogram (ECG) data from the Sleep Heart Health Study was transformed into electrocardiomatrix (ECM), in which sequential cardiac cycles are aligned, in parallel, along a shared axis. Read More

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http://dx.doi.org/10.1016/j.jelectrocard.2018.08.006DOI Listing
August 2018
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Evaluation of Tp-e interval, Tp-e/QT and Tp-e/QTc ratio in aortic valve stenosis before and after transcatheter aortic valve implantation.

J Electrocardiol 2018 Nov - Dec;51(6):949-954. Epub 2018 Aug 10.

University of Health Science, Mehmet Akif Ersoy Thoracic and Cardiovascular Surgery Center, Training and Research Hospital, Department of Cardiology, Istanbul, Turkey.

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http://dx.doi.org/10.1016/j.jelectrocard.2018.08.004DOI Listing
August 2018
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Resolution of fetal second-degree atrioventricular block.

J Electrocardiol 2018 Nov - Dec;51(6):945-947. Epub 2018 Aug 17.

University of Massachusetts Medical School, Department of Pediatric Cardiology, 55 Lake Avenue North, Worcester, MA 01655, United States of America.

Fetal atrioventricular (AV) block is a rare and potentially devastating condition. Most commonly fetal AV block is mediated by maternal lupus antibodies which cause irreversible damage to the AV node. For many fetuses, the only potential intervention is premature delivery and highly invasive pacemaker implantation. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S00220736183048
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http://dx.doi.org/10.1016/j.jelectrocard.2018.08.020DOI Listing
August 2018
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An "inappropriately appropriate" shock in a subcutaneous implantable cardioverter-defibrillator: The importance of the SMART pass algorithm.

J Electrocardiol 2018 Nov - Dec;51(6):941-944. Epub 2018 Jul 26.

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

We report on a case of a 78-years-old patient with a subcutaneous implantable cardioverter defibrillator (S-ICD) and an episode of a sustained ventricular tachycardia (VT) at a rate slower than the programmed shock zone. Because of T-wave oversensing the device interpreted it as fast VT that triggered the delivery of an "inappropriately appropriate shock" that terminated it. The patient had again more VT episodes but after programming the SMART pass algorithm (previously programmed "OFF") the device showed no longer frequent T-wave oversensing and no additional inappropriate shocks occurred. Read More

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http://dx.doi.org/10.1016/j.jelectrocard.2018.07.021DOI Listing
July 2018
2 Reads