1,290 results match your criteria Annals of Noninvasive Electrocardiology [Journal]


Reproducibility of measuring QRS duration and implications for optimization of interventricular pacing delay in cardiac resynchronization therapy.

Ann Noninvasive Electrocardiol 2018 Dec 6:e12621. Epub 2018 Dec 6.

Department of Cardiology, Aarhus University Hospital, Aarhus N, Denmark.

Background: QRS narrowing after CRT is a predictor of patient outcome. Further narrowing can be obtained by interventricular pacing delay (VVd) optimization, raising interest to inter and intraobserver variation in manual measurements of QRS duration.

Methods: (a) Variation in intrinsic rhythm QRS duration in CRT patients with LBBB: In 40 intrinsic 12-lead ECGs, six observers measured QRS duration defined as widest QRS in any lead. Read More

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http://dx.doi.org/10.1111/anec.12621DOI Listing
December 2018
2 Reads

The early repolarization pattern: Echocardiographic characteristics in elite athletes.

Ann Noninvasive Electrocardiol 2018 Nov 14:e12617. Epub 2018 Nov 14.

Department of Prevention, Rehabilitation and Sports Medicine, Technical University of Munich (TUM), Munich, Germany.

Background: The electrocardiographic early repolarization (ER) pattern is associated with idiopathic ventricular fibrillation and increased long-term cardiovascular mortality. Whether structural cardiac aberrations influence the phenotype is unclear. Since ER is particularly common in athletes, we evaluated its prevalence and investigated predisposing echocardiographic characteristics and cardiopulmonary exercise capacity in a cohort of elite athletes. Read More

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http://doi.wiley.com/10.1111/anec.12617
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http://dx.doi.org/10.1111/anec.12617DOI Listing
November 2018
5 Reads

Variations of electrocardiographic parameters during hospitalization predict long-term outcomes in patients with non-ST-segment elevation myocardial infarction.

Ann Noninvasive Electrocardiol 2018 Nov 14:e12613. Epub 2018 Nov 14.

Department of Cardiology, West China Hospital, Sichuan University, Chengdu, China.

Background: Electrocardiogram is an essential modality for diagnosis and early risk stratification for patients with acute coronary syndrome (ACS), but its long-term prognostic value has not been well studied. This study tried to investigate the long-term prognostic value of variations of ECG parameters at admission and discharge in patients with non-ST-segment elevation myocardial infarction (NSTEMI).

Methods: A total of 170 NSTEMI patients were recruited consecutively from 2013 to 2014 in West China Hospital of Sichuan University. Read More

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http://dx.doi.org/10.1111/anec.12613DOI Listing
November 2018
1 Read

Evaluation of varenicline usage on ventricular repolarization after smoking cessation.

Ann Noninvasive Electrocardiol 2018 Nov 12:e12609. Epub 2018 Nov 12.

Department of General Surgery, Health Sciences University Konya Training and Research Hospital, Konya, Turkey.

Background: Varenicline, which is a selective partial agonist of the alpha4-beta2 nicotinic acetylcholine receptor, is used for the smoking cessation pharmacotherapy. Cardiovascular adverse effects have been reported after varenicline usage in patients who stop smoking. We investigated the effect of varenicline usage on ventricular repolarization after smoking cessation. Read More

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http://dx.doi.org/10.1111/anec.12609DOI Listing
November 2018
3 Reads

Usefulness of platelet to lymphocyte ratio for predicting recurrence of atrial fibrillation after direct current cardioversion.

Ann Noninvasive Electrocardiol 2018 Nov 10:e12616. Epub 2018 Nov 10.

Department of Cardiology, Samsun Education and Research Hospital, Samsun, Turkey.

Objective: Atrial fibrillation (AF) is the most common cardiac rhythm disorder with the associated risks of stroke and mortality. The usefulness of platelet to lymphocyte ratio (PLR), a recently described inflammatory marker, in predicting adverse cardiovascular events has been demonstrated in several studies. In the current study, we investigated the role of PLR in predicting recurrence after successful electrical cardioversion (ECV) in patients with non-valvular persistent AF. Read More

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http://doi.wiley.com/10.1111/anec.12616
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November 2018
5 Reads
1.440 Impact Factor

Can abnormal dispersion of ventricular repolarization be a predictor of mortality in arrhythmogenic right ventricular cardiomyopathy: The importance of Tp-e interval.

Ann Noninvasive Electrocardiol 2018 Nov 9:e12619. Epub 2018 Nov 9.

Department of Cardiology, Dr. Suat Gunsel University of Kyrenia Hospital, Kyrenia, Mersin, Turkey.

Background: Arrhythmogenic right ventricular cardiomyopathy (ARVC) is an inherited cardiomyopathy characterized by ventricular arrhythmias and specific ventricular pathology. Repolarization abnormalities, the significant contributor to life-threatening arrhythmias and mortality, are frequently observed ECG changes in patients with ARVC. This study aimed to evaluate the changes in Tp-e interval, Tp-e/QT, Tp-e/QTc ratio, and traditional electrocardiographic features of electrical dispersion in patients with ARVC. Read More

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http://dx.doi.org/10.1111/anec.12619DOI Listing
November 2018
2 Reads

Vectorcardiogram in athletes: The Sun Valley Ski Study.

Ann Noninvasive Electrocardiol 2018 Nov 7:e12614. Epub 2018 Nov 7.

Knight Cardiovascular Institute, Oregon Health & Science University, Portland, Oregon.

Background: Global electrical heterogeneity (GEH) is associated with sudden cardiac death (SCD) in adults of 45 years and above. However, GEH has not been previously measured in young athletes. The goal of this study was to establish a reference for vectorcardiograpic (VCG) metrics in male and female athletes. Read More

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http://doi.wiley.com/10.1111/anec.12614
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November 2018
6 Reads

Electrocardiographic predictors of myocardial fibrosis and apical hypertrophic cardiomyopathy.

Ann Noninvasive Electrocardiol 2018 Nov 7:e12612. Epub 2018 Nov 7.

Division of Cardiology, Department of Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand.

Background: Electrocardiography (ECG) may be an efficacious diagnostic and prognostic tool in hypertrophic cardiomyopathy (HCM). This study aimed to investigate association between deep T-wave inversion (TWI) and apical HCM, and between fragmented QRS (fQRS) complex and myocardial fibrosis in patients with HCM.

Methods: Patients with documented HCM by cardiac magnetic resonance imaging (CMR) during 2005-2015 were studied. Read More

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http://dx.doi.org/10.1111/anec.12612DOI Listing
November 2018

Could fragmented QRS predict mortality in aortic stenosis patients after transcatheter aortic valve replacement?

Ann Noninvasive Electrocardiol 2018 Nov 7:e12618. Epub 2018 Nov 7.

Health and Science University, Bagcilar Training and Research Hospital, Istanbul, Turkey.

Background: Fragmented QRS evaluated in 12-derivation electrocardiography has widely been accepted as a sign of myocardial fibrosis. The prognostic value of that marker has been demonstrated, particularly, in cardiac diseases that accompany myocardial scar and fibrosis. Myocardial fibrosis is also an issue in patients with aortic stenosis. Read More

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http://doi.wiley.com/10.1111/anec.12618
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November 2018
5 Reads

Diurnal variation of frequency domain T-wave alternans on 24-hour ambulatory electrocardiogram in subjects without heart disease: Significant effect of autonomic nervous activity of the heart.

Ann Noninvasive Electrocardiol 2018 Nov 7:e12620. Epub 2018 Nov 7.

Department of Intensive Care Medicine, National Defense Medical College, Saitama, Japan.

Background: T-wave alternans (TWA) is a risk stratification predictor for sudden cardiac death. However, little is known about the diurnal variation of TWA. Whether TWA are affected by heart rate (HR) or cardiac autonomic nervous activity in the subjects without significant structural heart disease in daily life is not fully understood. Read More

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http://dx.doi.org/10.1111/anec.12620DOI Listing
November 2018
1 Read

Performance of an atrial fibrillation detection algorithm using continuous pulse wave monitoring.

Ann Noninvasive Electrocardiol 2018 Nov 2:e12615. Epub 2018 Nov 2.

Division of Arrhythmia and Electrophysiology, Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, Osaka, Japan.

Background: Detecting asymptomatic and undiagnosed atrial fibrillation (AF) is increasingly important. Recently, we developed a wristwatch-based pulse wave monitor (PWM; Seiko Epson, Japan) capable of long-term recording, with an automatic diagnosis algorithm that uses frequency-based pulse wave analysis. The aim of this study was to evaluate the validity of continuous pulse wave monitoring for detection of AF. Read More

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http://dx.doi.org/10.1111/anec.12615DOI Listing
November 2018
2 Reads

Upsloping ST depression: Is it acute ischemia?

Ann Noninvasive Electrocardiol 2018 Nov 2:e12607. Epub 2018 Nov 2.

The Section of Cardiology, Baylor College of Medicine and Texas Heart Institute, Baylor St Luke Medical Center, Houston, Texas.

We describe a patient with acute coronary syndrome, presenting with upsloping ST depression in leads I, II, V3-V6 and ST elevation in lead aVR. Coronary angiography revealed spontaneous dissection in a big, dominant left circumflex artery. No other lesions identified. Read More

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http://dx.doi.org/10.1111/anec.12607DOI Listing
November 2018
1 Read

Reply.

Ann Noninvasive Electrocardiol 2018 Nov 1:e12608. Epub 2018 Nov 1.

Section of Cardiology, Baylor College of Medicine, Houston, Texas.

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http://dx.doi.org/10.1111/anec.12608DOI Listing
November 2018

TWARMI pilot trial: The value and optimal criteria of microvolt T-wave alternans in the diagnosis of reversible myocardial ischemia in patients without structural cardiac disease.

Ann Noninvasive Electrocardiol 2018 Nov 1:e12610. Epub 2018 Nov 1.

University of Zagreb, School of Medicine, University Hospital Center Zagreb, Zagreb, Croatia.

Aims: Microvolt T-wave alternans (MTWA) testing is a beat-to-beat fluctuation in the amplitude of T wave. We investigated whether: (a) MTWA can be new non-invasive tool for detection of reversible ischemia in patients with suspected CAD without structural heart disease, (b) MTWA can detect ischemia earlier and with greater test accuracy compared with exercise ECG ST-segment testing, and (c) threshold value of MTWA and heart rate at which the alternans is estimated can be different compared to standard values.

Methods: A total of 101 patients with suspected stable coronary disease, but without structural heart disease, were included. Read More

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http://dx.doi.org/10.1111/anec.12610DOI Listing
November 2018
1 Read
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Baseline fragmented QRS is associated with increased all-cause mortality in heart failure with reduced ejection fraction: A systematic review and meta-analysis.

Ann Noninvasive Electrocardiol 2018 Oct 17:e12597. Epub 2018 Oct 17.

Department of Medicine, Texas Tech University Health Sciences Center, Lubbock, Texas.

Background: Recent studies suggested that fragmented (fQRS) is associated with poor clinical outcomes in heart failure with reduced ejection fraction (HFrEF) patients. However, no systematic review or meta-analysis has been done. We conducted a systematic review and meta-analysis to assess the association between baseline fQRS and all-cause mortality in HFrEF. Read More

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http://doi.wiley.com/10.1111/anec.12597
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http://dx.doi.org/10.1111/anec.12597DOI Listing
October 2018
7 Reads

The non-acute coronary syndrome related ST-elevation patterns (NASTEP) conundrum: War helmets, Greek letters, and… "shark fins".

Ann Noninvasive Electrocardiol 2018 Nov 11;23(6):e12605. Epub 2018 Oct 11.

Department of Medical and Surgery Science, University of Foggia, Foggia, Italy.

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http://dx.doi.org/10.1111/anec.12605DOI Listing
November 2018
1 Read

Newly proposed electrocardiographic criteria for the diagnosis of left ventricular hypertrophy in a Chinese population.

Ann Noninvasive Electrocardiol 2018 Oct 3:e12602. Epub 2018 Oct 3.

Tianjin Key Laboratory of Ionic-Molecular Function of Cardiovascular Disease, Department of Cardiology, Tianjin Institute of Cardiology, Second Hospital of Tianjin Medical University, Tianjin, China.

Background: The electrocardiographic criteria currently available for the diagnosis of left ventricular hypertrophy (LVH) are low in sensitivity. Thus, we compared the diagnostic performance of newly proposed electrocardiographic criteria to the existing criteria in a Chinese population.

Methods: A total of 235 consecutive hypertensive patients, hospitalized in our department between May 2017 and April 2018, were included. Read More

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http://doi.wiley.com/10.1111/anec.12602
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October 2018
2 Reads
1.440 Impact Factor

Myocardial recovery after cardiac resynchronization therapy in left bundle branch block-associated idiopathic nonischemic cardiomyopathy: A NEOLITH II substudy.

Ann Noninvasive Electrocardiol 2018 Sep 28:e12603. Epub 2018 Sep 28.

Heart and Vascular Institute, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania.

Background: Baseline predictors of myocardial recovery after cardiac resynchronization therapy (CRT) in left bundle branch block (LBBB)-associated idiopathic nonischemic cardiomyopathy (NICM) are unknown.

Methods: A retrospective study included subjects with idiopathic NICM, left ventricular ejection fraction (LVEF) ≤35%, and LBBB. Myocardial recovery was defined as post-CRT LVEF ≥50%. Read More

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http://dx.doi.org/10.1111/anec.12603DOI Listing
September 2018
6 Reads
1.440 Impact Factor

Combining noninvasive risk stratification parameters improves the prediction of mortality and appropriate ICD shocks.

Ann Noninvasive Electrocardiol 2018 Sep 28:e12604. Epub 2018 Sep 28.

Department of Cardiovascular Sciences, University of Leuven, Leuven, Belgium.

Background: Sudden cardiac death (SCD) results from a complex interplay of abnormalities in autonomic function, myocardial substrate and vulnerability. We studied whether a combination of noninvasive risk stratification tests reflecting these key players could improve risk stratification.

Methods: Patients implanted with an ICD in whom 24-hr holter recordings were available prior to implant were included. Read More

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http://dx.doi.org/10.1111/anec.12604DOI Listing
September 2018

Ischemic QRS prolongation as a biomarker of myocardial injury in STEMI patients.

Ann Noninvasive Electrocardiol 2018 Sep 28:e12601. Epub 2018 Sep 28.

Department of Clinical Physiology and Nuclear Medicine, Skåne University Hospital and Lund University, Lund, Sweden.

Background: Patients with acute coronary occlusion (ACO) may not only have ischemia-related ST-segment changes but also changes in the QRS complex. It has recently been shown in dogs that a greater ischemic QRS prolongation (IQP) during ACO is related to lower collateral flow. This suggests that greater IQP could indicate more severe ischemia and thereby more rapid infarct development. Read More

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http://dx.doi.org/10.1111/anec.12601DOI Listing
September 2018
1 Read
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Supraventricular arrhythmia with discordant electrocardiographic features: What is the arrhythmia mechanism?

Ann Noninvasive Electrocardiol 2018 Sep 28:e12595. Epub 2018 Sep 28.

Arrhythmia & EP Research Center, IRCCS Humanitas Research & University Hospital, Rozzano, Milan, Italy.

Junctional and AV nodal reentrant tachycardia share common electrocardiographic features, but they differ in their management and outcomes after catheter ablation. This case concerns a 60-year-old female who presented with recurrent episodes of a relatively slow, regular supraventricular arrhythmia. Electrocardiographic features of the arrhythmia were discordant regarding its underlying mechanism. Read More

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http://dx.doi.org/10.1111/anec.12595DOI Listing
September 2018

Treating Lyme carditis high-degree AV block using a temporary-permanent pacemaker.

Ann Noninvasive Electrocardiol 2018 Sep 28:e12599. Epub 2018 Sep 28.

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

A 28-year-old previously healthy male presented with nonprodromal syncope and a 4-day history of chest pain, shortness of breath, and malaise. His ECG showed rapidly progressive high-degree AV block. His Suspicious Index in Lyme Carditis (SILC) score was 8, indicating high risk for Lyme carditis. Read More

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http://dx.doi.org/10.1111/anec.12599DOI Listing
September 2018
7 Reads

Other correlates of "lambda wave" in patients with takotsubo syndrome?

Authors:
John E Madias

Ann Noninvasive Electrocardiol 2018 Nov 26;23(6):e12596. Epub 2018 Sep 26.

Icahn School of Medicine at Mount Sinai, New York, New York.

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http://dx.doi.org/10.1111/anec.12596DOI Listing
November 2018
1 Read

Electro-vectorcardiographic demonstration of rate-independent transient left posterior fascicular block.

Ann Noninvasive Electrocardiol 2018 Sep 26:e12600. Epub 2018 Sep 26.

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

Left posterior fascicular block (LPFB) is a rare intraventricular conduction disorder of rare occurrence, especially as an isolated entity. Its transient form is even rarer and maybe rate-independent or rate-dependent intermittent LPFB (phase 3 block, tachycardia-dependent and phase 4 block or bradycardia-dependent). We present a case of a young adult male whose baseline ECG/VCG showed the typical LPFB pattern. Read More

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http://dx.doi.org/10.1111/anec.12600DOI Listing
September 2018
1 Read

Normalization of frequency-domain parameters of heart rate variability in patients with myotonic dystrophy.

Ann Noninvasive Electrocardiol 2018 Sep 21:e12606. Epub 2018 Sep 21.

Department of Emergency Medicine, Malatya Education and Research Hospital, Malatya, Turkey.

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http://dx.doi.org/10.1111/anec.12606DOI Listing
September 2018
6 Reads

Deblurring the significance of ST-elevation in aVL in anterolateral myocardial infarction.

Ann Noninvasive Electrocardiol 2018 Sep 21:e12598. Epub 2018 Sep 21.

Department of Cardiology, Dr. Siyami Ersek Thoracic and Cardiovascular Surgery Training and Research Hospital, Istanbul, Turkey.

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http://dx.doi.org/10.1111/anec.12598DOI Listing
September 2018
1 Read

Comparison of the prognostic role of Q waves and inverted T waves in the presenting ECG of STEMI patients.

Ann Noninvasive Electrocardiol 2018 Sep 6:e12585. Epub 2018 Sep 6.

Faculty of Medicine and Life Sciences, University of Tampere, Tampere, Finland.

Background: Both Q waves and T-wave inversion (TWI) in the presenting ECG are associated with a progressed stage of myocardial infarction, possibly with less potential for myocardial salvage with reperfusion therapy. Combining the diagnostic information from the Q- and T-wave analyses could improve the prognostic work-up in ST-elevation myocardial infarction (STEMI) patients.

Methods: We sought to determine the prognostic impact of Q waves and TWI in the admission ECG on patient outcome in STEMI. Read More

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http://dx.doi.org/10.1111/anec.12585DOI Listing
September 2018
1 Read

Second-degree interatrial block: Brief review and concept.

Ann Noninvasive Electrocardiol 2018 Nov 2;23(6):e12583. Epub 2018 Sep 2.

National Academy of Medicine, Buenos Aires, Argentina.

The advanced interatrial block (A-IAB) (P ≥ 120 ms plus ± pattern in II, III and aVF) corresponds at atrial level, to right or left advanced bundle branch block at ventricular level, and it is well known that these patterns may be seen transiently in relation to taquicardia or bradycardia (tachycardia or bradycardia dependent right or left bundle branch block). We present for the first time, the same phenomenon at atrial level. In one case, the A-IAB appears in relation to tachycardization and in the other disappears during a pause induced by ventricular premature complex. Read More

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http://dx.doi.org/10.1111/anec.12583DOI Listing
November 2018
3 Reads

Pediatric noncompaction patients with high spatial QRS-T angles are at increased risk for ventricular tachycardia.

Ann Noninvasive Electrocardiol 2018 Aug 27:e12588. Epub 2018 Aug 27.

Electrophysiology/Pediatric Cardiology, Penn State Milton S. Hershey Medical Center, Hershey, Pennsylvania.

Introduction: Noncompaction cardiomyopathy (NCCM) patients may develop sustained ventricular arrhythmias (VA). Currently no known electrocardiogram (ECG) parameter has demonstrated predictive value for VA development. The spatial QRS-T angle has demonstrated ability to identify VA in other cardiomyopathy populations. Read More

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http://dx.doi.org/10.1111/anec.12588DOI Listing
August 2018
16 Reads

Association between serum cotinine levels and electrocardiographic left atrial abnormality.

Ann Noninvasive Electrocardiol 2018 Aug 27:e12586. Epub 2018 Aug 27.

Epidemiological Cardiology Research Center (EPICARE), Department of Epidemiology and Prevention, Wake Forest School of Medicine, Winston Salem, North Carolina.

Background: Although the harmful effect of tobacco exposure on cardiovascular disease (CVD) and its risk factors are well established, the constituents of cigarette-smoke and the pathophysiological mechanism involved are unknown. Recently, deep terminal negativity of P wave in V1 (DTNPV1) has emerged as a marker of left atrial abnormality that predicts atrial fibrillation, stroke, and death due to all-cause or CVD. Therefore, we examined the association between serum cotinine levels with abnormal DTNPV1 using the Third National Health and Nutrition Examination Survey. Read More

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http://dx.doi.org/10.1111/anec.12586DOI Listing
August 2018
9 Reads

An investigation on the influence of yogic methods on heart rate variability.

Ann Noninvasive Electrocardiol 2018 Aug 22:e12584. Epub 2018 Aug 22.

Department of Human Consciousness & Yogic Sciences, Mangalore University, Mangalagangotri, India.

Background: The role of underlying mechanisms of yogic strategies which exert beneficiary effects on cardiac autonomic control is poorly understood. We have performed heart rate variability (HRV) analysis on subjects performing yogic methods and control subjects who mimic them through paced breathing and focused attention tasks using external cues.

Methods: Heart rate (HR) time series is generated from electrocardiogram measured from subjects of yogic group (YG); performing yogic practices (n = 15), paced breathing group (PBG); involved in breathing exercises cued at breathing rates (BR) from 3 to 15 cycles per minute (cpm) (n = 23), normal breathing group (NBG) under regular breathing (n = 15), and subjects performing three different cognitive tasks designated as focused attention group (FAG), (n = 24). Read More

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http://dx.doi.org/10.1111/anec.12584DOI Listing
August 2018
12 Reads

SCN5A mutation status increases the risk of major arrhythmic events in Asian populations with Brugada syndrome: systematic review and meta-analysis.

Ann Noninvasive Electrocardiol 2018 Aug 20:e12589. Epub 2018 Aug 20.

Department of Internal Medicine, University of Michigan Medical School, Michigan Medicine, Ann Arbor, Michigan.

Background: Brugada syndrome (BrS) is an inherited arrhythmic disease linked to SCN5A mutations. It is controversial whether SCN5A mutation carriers possess a greater risk of major arrhythmic events (MAE). We examined the association of SCN5A mutations and MAE in BrS patients. Read More

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http://dx.doi.org/10.1111/anec.12589DOI Listing
August 2018
3 Reads

Electrical surrogate for detection of severe left ventricular systolic dysfunction.

Ann Noninvasive Electrocardiol 2018 Nov 20;23(6):e12591. Epub 2018 Aug 20.

Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California.

Background: Early diagnosis and therapy improves outcomes in heart failure with severely reduced left ventricular ejection fraction (LVEF ≤35%), but some patients may remain undiagnosed. We hypothesized that a combination of electrocardiogram (ECG) markers may identify individuals with severely reduced LVEF.

Methods: From a community-based study in the Northwest US (the Oregon Sudden Unexpected Death Study), we evaluated the prevalence of conventional ECG markers by LVEF. Read More

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http://doi.wiley.com/10.1111/anec.12591
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6264892PMC
November 2018
9 Reads

Multiple myocardial bridges associated with left-ventricular dysfunction, intermittent left bundle branch block, and cardiac memory: A case report.

Authors:
Martin Ibarrola

Ann Noninvasive Electrocardiol 2018 Aug 17:e12594. Epub 2018 Aug 17.

Centro Cardiovascular BV, Buenos Aires, Argentina.

Myocardial bridges are a congenital anomaly in which a segment of the coronary artery takes a "tunneled" intramuscular course. Few reports have associated myocardial bridges with left-ventricular dysfunction in patients with ischemia. Intermittent left bundle branch block is a conduction disturbance that has been described to be associated with myocardial bridges and cardiac memory. Read More

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http://dx.doi.org/10.1111/anec.12594DOI Listing
August 2018
2 Reads

Fragmented QRS as a predictor of in-hospital life-threatening arrhythmic complications in ST-elevation myocardial infarction patients.

Ann Noninvasive Electrocardiol 2018 Aug 17:e12593. Epub 2018 Aug 17.

Division of Cardiology, Department of Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand.

Background: Fragmented QRS (fQRS) complex is an electrocardiographic pattern that reflects the inhomogeneity of ventricular depolarization. The aims of this study were to determine the prognostic significance of fQRS for predicting in-hospital life-threatening arrhythmic complications in ST-elevation myocardial infarction (STEMI) patients, and to identify the most appropriate duration of cardiac rhythm monitoring in STEMI patients with fQRS.

Methods: Patients diagnosed with and treated for STEMI at Siriraj Hospital (Bangkok, Thailand) during 2009-2012 were enrolled. Read More

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http://dx.doi.org/10.1111/anec.12593DOI Listing
August 2018
3 Reads

Acute inferior myocardial infarction with right ventricular involvement and several clinical-electrocardiographic markers of poor prognosis.

Ann Noninvasive Electrocardiol 2018 Aug 14:e12592. Epub 2018 Aug 14.

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

Right ventricular involvement in inferior myocardial infarction is a marker of poor prognosis. We present a case of a 62-year-old man with very recent onset of acute chest pain and cardiac shock with the triad of elevated jugular venous pressure, distension of the jugular veins on inspiration, and clear lung fields. In addition, the admission electrocardiogram showed a slurring J wave or lambda-like wave and conspicuous ST segment depression in several leads, predominantly in the lateral precordial (V4-V6), all clinical-electrocardiographic features of ominous prognosis. Read More

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http://dx.doi.org/10.1111/anec.12592DOI Listing
August 2018
4 Reads

Electro-vectorcardiographic and electrophysiological aspects of Ebstein's anomaly.

Ann Noninvasive Electrocardiol 2018 Aug 14:e12590. Epub 2018 Aug 14.

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

Ebstein's anomaly is a congenital heart disease where the most important anatomic feature is the inferior displacement of the tricuspid valve leaflets. Vectorcardiographic features are mainly forgotten and electrocardiographic features may be unrecognized by cardiologists handling adult patients. Read More

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http://dx.doi.org/10.1111/anec.12590DOI Listing
August 2018
4 Reads

Twenty-four-hour ambulatory ECG monitoring relevancy in myotonic dystrophy type 1 follow-up: Prognostic value and heart rate variability evolution.

Ann Noninvasive Electrocardiol 2018 Aug 12:e12587. Epub 2018 Aug 12.

Department of Cardiology, CHU Poitiers, Poitiers, France.

Background: Patient prognosis in type 1 myotonic dystrophy (DM1) is very poor. Annual 24-hour holter ECG monitoring is recommended but its relevance is debated. Main objective was to determine whether holter ECG parameters could predict global death in DM1 patients and secondarily to assess whether they could predict cardiovascular events and sudden cardiac death, to compare DM1 patients and healthy controls, and to assess their evolution in DM1 over a 5-year period. Read More

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http://doi.wiley.com/10.1111/anec.12587
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August 2018
11 Reads

"Lambda-wave" ST-elevation is associated with severe prognosis in stress (takotsubo) cardiomyopathy.

Ann Noninvasive Electrocardiol 2018 Nov 9;23(6):e12581. Epub 2018 Jul 9.

Department of Medical and Surgery Science, University of Foggia, Foggia, Italy.

Background: Persistent ST-segment elevation in acute coronary syndrome is associated with both short and long-term complications. By contrast, there is limited information about ST-elevation and its evolution during takotsubo (stress) cardiomyopathy (TTC).

Aim: To evaluate whether persistent downsloping ST-elevation in the early stages of TTC might correlate with short and long-term clinical events. Read More

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http://dx.doi.org/10.1111/anec.12581DOI Listing
November 2018
14 Reads

Epsilon waves: Milestones in the discovery and progress.

Ann Noninvasive Electrocardiol 2018 Nov 5;23(6):e12571. Epub 2018 Jul 5.

Rhythmology Unit, Cardiology Institute, Pitie Salpetriere University Hospital, Paris, France.

The Epsilon wave was first identified in 1977. Four decades of progress help people to better understand its pathological electrogenesis and diagnostic value. Currently, the Epsilon wave is on the list of the 2010 Task Force recommendations for the diagnosis of arrhythmogenic right ventricular dysplasia (ARVD). Read More

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http://dx.doi.org/10.1111/anec.12571DOI Listing
November 2018
4 Reads

Fibrosis and wall thickness affect ventricular repolarization dynamics in hypertrophic cardiomyopathy.

Ann Noninvasive Electrocardiol 2018 Nov 4;23(6):e12582. Epub 2018 Jul 4.

Department of Cardiology, Heart and Lung Center, Helsinki University Hospital and University of Helsinki, Helsinki, Finland.

Background: Hypertrophic cardiomyopathy (HCM) is characterized by ventricular repolarization abnormalities and risk of ventricular arrhythmias. Our aim was to study the association between the phenotype and ventricular repolarization dynamics in HCM patients.

Methods: HCM patients with either the MYBPC3-Q1061X or TPM1-D175N mutation (n = 46) and control subjects without mutation and hypertrophy (n = 35) were studied with 24-hr ambulatory ECG recordings by measuring time intervals of rate-adapted QT (QTe), maximal QT, and T-wave apex to wave end (TPE) intervals and the QTe/RR slope. Read More

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http://dx.doi.org/10.1111/anec.12582DOI Listing
November 2018
3 Reads

The significance of ST-elevation in aVL in anterolateral myocardial infarction: An assessment by cardiac magnetic resonance imaging.

Ann Noninvasive Electrocardiol 2018 Nov 4;23(6):e12580. Epub 2018 Jul 4.

Section of Cardiology, Baylor College of Medicine, Houston, Texas.

Background: Anterolateral myocardial infarction (MI) is traditionally defined on the electrocardiogram by ST-elevation (STE) in I, aVL, and the precordial leads. Traditional literature holds STE in lead aVL to be associated with occlusion proximal to the first diagonal branch of the left anterior descending coronary artery. However, concomitant ischemia of the inferior myocardium may theoretically lead to attenuation of STE in aVL. Read More

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http://dx.doi.org/10.1111/anec.12580DOI Listing
November 2018
20 Reads

Sleep-disordered breathing and electrocardiographic QRS-T angle: The MESA study.

Ann Noninvasive Electrocardiol 2018 Nov 2;23(6):e12579. Epub 2018 Jul 2.

Department of Epidemiology, Epidemiological Cardiology Research Center, Wake Forest School of Medicine, Winston-Salem, North Carolina.

Introduction: Sleep-disordered breathing (SDB) has been linked to sudden cardiac death (SCD) but the mechanism is unclear. Abnormal QRS-T angle, a novel electrocardiographic (ECG) marker of ventricular repolarization, has been linked to adverse cardiovascular outcomes including SCD. We hypothesized that individuals with SDB have more pronounced abnormality in QRS-T angle. Read More

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http://dx.doi.org/10.1111/anec.12579DOI Listing
November 2018
2 Reads

Predictive value of unshielded magnetocardiographic mapping to differentiate atrial fibrillation patients from healthy subjects.

Ann Noninvasive Electrocardiol 2018 Nov 27;23(6):e12569. Epub 2018 Jun 27.

Biomagnetism and Clinical Physiology International Center, Catholic University of Sacred Heart, Rome, Italy.

Background: P-wave duration, its dispersion and signal-averaged ECG, are currently used markers of vulnerability to atrial fibrillation (AF). However, since tangential atrial currents are better detectable at the body surface as magnetic than electric signals, we investigated the accuracy of magnetocardiographic mapping (MCG), recorded in unshielded clinical environments, as predictor of AF occurrence.

Methods: MCG recordings, in sinus rhythm (SR), of 71 AF patients and 75 controls were retrospectively analyzed. Read More

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http://dx.doi.org/10.1111/anec.12569DOI Listing
November 2018
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A tale of two formulas: Differentiation of subtle anterior MI from benign ST segment elevation.

Ann Noninvasive Electrocardiol 2018 Nov 25;23(6):e12568. Epub 2018 Jun 25.

Division of Cardiology, Dr. Siyami Ersek Thoracic and Cardiovascular Surgery Training and Research Hospital, Istanbul, Turkey.

Background: It may sometimes be difficult to differentiate subtle ST-segment elevation (STE) due to anterior myocardial infarction (MI) from benign variant (BV) STE. Recently, two related formulas were proposed for this purpose. However, they have never been tested in an external population. Read More

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http://dx.doi.org/10.1111/anec.12568DOI Listing
November 2018
13 Reads

The presence of atrial fibrillation in Takotsubo cardiomyopathy is predictive of mortality: Systematic review and meta-analysis.

Ann Noninvasive Electrocardiol 2018 Jun 25:e12566. Epub 2018 Jun 25.

Faculty of Medicine, Department of Medicine, Chulalongkorn University, Bangkok, Thailand.

Introduction: Atrial fibrillation (AF) is known as the most common arrhythmia and an independent risk factor for mortality. Recent studies suggest that AF is associated with morbidity and mortality in Takotsubo cardiomyopathy (TTC). However, a systematic review and meta-analysis of the literature have not been done. Read More

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http://dx.doi.org/10.1111/anec.12566DOI Listing
June 2018
10 Reads

Association of QRS-T angle and heart rate variability with major cardiac events and mortality in hemodialysis patients.

Ann Noninvasive Electrocardiol 2018 Nov 25;23(6):e12570. Epub 2018 Jun 25.

Imperial College, National Heart and Lung Institute, London, UK.

Introduction: Mortality in hemodialysis (HD) patients is high with significant proportion attributed to fatal arrhythmias. In a pilot study, we showed that intradialytic electrocardiographic (ECG) monitoring can yield stable profiles of selected repolarisation descriptors and heart rate variability (HRV) parameters. This study investigated the relationship of these ECG markers with major adverse cardiac events (MACE) and mortality. Read More

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http://dx.doi.org/10.1111/anec.12570DOI Listing
November 2018
9 Reads

Fragmented QRS and mortality in patients undergoing percutaneous intervention for ST-elevation myocardial infarction: Systematic review and meta-analysis.

Ann Noninvasive Electrocardiol 2018 Nov 22;23(6):e12567. Epub 2018 Jun 22.

University of Hawaii Internal Medicine Residency Program, Honolulu, Hawaii.

Background: Fragmented QRS reflects disturbances in the myocardium predisposing the heart to ventricular tachyarrhythmias. Recent studies suggest that fragmented QRS (fQRS) is associated with mortality in ST-elevation myocardial infarction (STEMI) patients who underwent percutaneous coronary intervention (PCI). However, a systematic review and meta-analysis of the literature has not been done. Read More

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http://dx.doi.org/10.1111/anec.12567DOI Listing
November 2018
8 Reads

Left bundle branch block: Epidemiology, etiology, anatomic features, electrovectorcardiography, and classification proposal.

Ann Noninvasive Electrocardiol 2018 Jun 22:e12572. Epub 2018 Jun 22.

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

In left bundle branch block (LBBB), the ventricles are activated in a sequential manner with alterations in left ventricular mechanics, perfusion, and workload resulting in cardiac remodeling. Underlying molecular, cellular, and interstitial changes manifest clinically as changes in size, mass, geometry, and function of the heart. Cardiac remodeling is associated with progressive ventricular dysfunction, arrhythmias, and impaired prognosis. Read More

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http://dx.doi.org/10.1111/anec.12572DOI Listing
June 2018
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Questionable validity of left ventricular hypertrophy cutoff values in morbidly and super-morbidly obese patients.

Ann Noninvasive Electrocardiol 2018 Nov 17;23(6):e12564. Epub 2018 Jun 17.

Department of Internal Medicine and Cardiology with the Center for Diagnosis and Treatment of Venous Thromboembolism, Medical University of Warsaw, Warsaw, Poland.

Background: Current diagnostic ECG criteria of left ventricular hypertrophy in obese patients are still lacking.

Objective: To assess the current ECG diagnostic criteria of LVH, and to validate our previously proposed criteria in a group of patients with morbid obesity.

Methods: A group of consecutive 429 obese patients (MOP) with BMI of at least 35 kg/m (mean age 38. Read More

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http://dx.doi.org/10.1111/anec.12564DOI Listing
November 2018
3 Reads