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Ann Noninvasive Electrocardiol 2020 Jul 7:e12771. Epub 2020 Jul 7.

Department of Cardiology, The Second Affiliated Hospital of Soochow University, Suzhou City, China.

Background And Aims: The aim was to investigate the predictive values of heart rate variability, deceleration, and acceleration capacity of heart rate in sudden cardiac death in postinfarction patients with left ventricular ejection fraction (LVEF) ≥ 35%.

Methods: We enrolled 138 acute myocardial infarction patients (MI) randomly in sinus rhythm with LVEF ≥ 35% after myocardial infarction. Data on heart rate variability, deceleration runs, deceleration, and acceleration capacity were obtained from 24h-dynamic electrocardiogram recordings. Read More

Ann Noninvasive Electrocardiol 2020 Jul 5:e12787. Epub 2020 Jul 5.

Department of Cardiology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China.

Background: Recurrence rate after radiofrequency catheter ablation (RFCA) remains high, and further investigation on predictors of recurrence is needed.

Objects: To identify risk factors of atrial fibrillation (AF) recurrence in patients undergoing RFCA.

Methods: We retrospectively studied 257 patients with AF who underwent RFCA preceded by transthoracic echocardiographic and pulmonary vein CT examination from 2016 to 2019. Read More

Ann Noninvasive Electrocardiol 2020 Jun 27:e12782. Epub 2020 Jun 27.

Department of Cardiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.

Idiopathic ventricular arrhythmia (IVA) is a term used to describe a spectrum of ventricular arrhythmia without structural heart disease (SHD). IVAs contain premature ventricular contractions (PVCs), nonsustained monomorphic ventricular tachycardia (VT), and sustained VT. Electrocardiography is a fundamental and important tool to diagnose and localize IVAs. Read More

Ann Noninvasive Electrocardiol 2020 Jun 27:e12784. Epub 2020 Jun 27.

Department of Cardiology, Oslo University Hospital Ullevål, Oslo, Norway.

Background: ECG changes after revascularization predicts improved outcome for patients with ST-elevation myocardial infarction (STEMI). Worst lead residual (WLR) ST deviation and resolution of worst lead ST elevation (rST elevation) are simple measures that can be obtained early after PCI. The objective of the current study was to investigate whether simple ECG measures, obtained one hour following PCI, could predict cardiac magnetic resonance (CMR)-derived myocardial salvage index (MSI), infarct size (IS), and microvascular obstruction (MVO) in patients with STEMI included in the MITOCARE trial. Read More

Ann Noninvasive Electrocardiol 2020 Jun 25:e12783. Epub 2020 Jun 25.

Department of Cardiology, Kingston General Hospital, Queen's University, Kingston, ON, Canada.

Background: The reported positive predictive value (PPV) for the "de Winter ECG pattern" to predict an acute left anterior descending artery (LAD) lesion is inconsistent. Besides, the morphology of upsloping or nonupsloping ST depression (STD) may have different significance of severity and prognostication.

Methods: We searched the MEDLINE database using "de Winter" or "junctional ST-depression with tall symmetrical T-waves" or "tall T wave" or "STEMI equivalent" as the item up to March 2020. Read More

Ann Noninvasive Electrocardiol 2020 Jun 25:e12785. Epub 2020 Jun 25.

Department of Cardiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China.

Background: Atrial fibrillation (AF) is the most common sustained arrhythmia, and catheter ablation has been shown to be a highly effective treatment for patients with symptomatic AF. Very early recurrence (VER) of AF within 7 days after catheter ablation is common, but the clinical significance of VER remains unclear. We have examined the usefulness of the noninvasive electrocardiography monitor for the detection of VER and the relationship between VER and late recurrence (LR). Read More

Ann Noninvasive Electrocardiol 2020 Jun 21:e12773. Epub 2020 Jun 21.

Department of Heart Centre, General Hospital of Ningxia Medical University, Yinchuan, China.

Background: Atrial fibrillation (AF) is known to be the most common arrhythmia, and the successful rate of long-term ablation can vary comparatively. Therefore, a clinical scoring system to predict rhythm outcome remains a critical unmet need. The electrocardiographic (ECG) risk score which is named Morphology-Voltage-P-wave duration (MVP) score was reported to be useful for predicting new-onset AF. Read More

Ann Noninvasive Electrocardiol 2020 Jun 5:e12769. Epub 2020 Jun 5.

Department of Medicine, University of Colorado School of Medicine, Aurora, CO, USA.

A primigravida 26-year-old woman who had developed pre-eclampsia with malignant hypertension at 30 weeks of gestation suffered acute myocardial infarction two days postpartum. Electrocardiogram demonstrated diffuse ST-segment depression suggestive of subendocardial ischemia. Echocardiography demonstrated focal asymmetric left ventricular hypertrophy, with a characteristic "basal septal bulge", and a left ventricular mid-cavitary gradient of 51 mmHg. Read More

Ann Noninvasive Electrocardiol 2020 May 29:e12770. Epub 2020 May 29.

Department of Cardiology, Hospital General Universitario Gregorio Marañón, CIBERCV, Madrid, Spain.

Background: The criteria applied for diagnosis of left atrial (LA) abnormality using electrocardiogram (ECG) have high specificity but low sensitivity. In fact, some authors have suggested classifying P-wave anomalies associated with LA abnormality and interatrial block as "atrial abnormalities." The most widely known ECG criteria for LA abnormality include P-wave duration, morphology and voltage of P wave in inferior leads, presence of P-wave terminal force in V (PtfV ), and P-wave axis and area. Read More

Ann Noninvasive Electrocardiol 2020 May 26:e12767. Epub 2020 May 26.

Faculty of Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan.

Background: The autonomic activity plays a critical role in generating paroxysmal atrial fibrillation (PAF). This study aimed to evaluate the changes in the autonomic nerve activity before and after PAF events in patients with and without ischemic heart disease (IHD).

Methods: The study included 49 patients (71. Read More

Ann Noninvasive Electrocardiol 2020 May 7:e12762. Epub 2020 May 7.

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

Background: The Selvester QRS score can identify the presence and extent of myocardial scar in ischemic and nonischemic cardiomyopathy, but its performance in patients with hypertrophic cardiomyopathy (HCM) has not been assessed.

Methods: Consecutive patients with HCM referred to our hospital between January 2012 and July 2016 were prospectively enrolled. All patients underwent cardiac magnetic resonance (CMR) and 12-lead electrocardiography. Read More

Ann Noninvasive Electrocardiol 2020 May 4:e12768. Epub 2020 May 4.

Department of Cardiology, the First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China.

Background: Early repolarization pattern (ERP) was associated with sudden cardiac death in recent studies. However, the associations between ERP and coronary artery disease (CAD), and ERP and cardiac death caused by acute myocardial infarction (MI) remains unclear.

Methods: We retrospectively enrolled consecutive 1,545 CAD patients and 908 non-CAD subjects as control group which were confirmed by coronary angiograph. Read More

Ann Noninvasive Electrocardiol 2020 Apr 30:e12760. Epub 2020 Apr 30.

Department of Clinical Physiology, Region Kalmar County, Kalmar, Sweden.

Background: Autonomic neuropathy (AN) commonly arises as a long-term complication in diabetes mellitus and can be diagnosed from heart rate variability (HRV), calculated from electrocardiogram recordings. Psychosocial stress also affects HRV and could be one of several confounders for cardiac AN. The present work investigated the impact of psychosocial stress on HRV in individuals with type 1 diabetes mellitus (T1DM) and assessed the use of salivary cortisol as a biomarker for psychosocial stress in this context. Read More

Ann Noninvasive Electrocardiol 2020 Apr 29:e12766. Epub 2020 Apr 29.

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

Background: Nonvitamin K antagonist oral anticoagulants (NOACs) are increasingly used in patients with atrial fibrillation (AF) undergoing elective cardioversion (ECV). The aim was to investigate the use of NOACs and warfarin in ECV in a real-life setting and to assess how the chosen regimen affected the delay to ECV and rate of complications.

Methods: Consecutive AF patients undergoing ECVs in the city hospitals of Helsinki between January 2015 and December 2016 were studied. Read More

Ann Noninvasive Electrocardiol 2020 Apr 26:e12757. Epub 2020 Apr 26.

Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, China.

A 51-year-old woman presented with a 5-year history of a bypass tract of a left posterior septal ablation for atrioventricular reentrant tachycardia (AVRT). Following the procedure, while swallowing even without any water or food, she felt a new onset of palpitations, and swallowing-induced atrial tachycardia was diagnosed. We report on this patient with tachycardia induced by swallowing who received a comprehensive assessment. Read More

Ann Noninvasive Electrocardiol 2020 Apr 26:e12759. Epub 2020 Apr 26.

Department of Cardiovascular Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan.

Acute inferior myocardial damage can induce transient bradycardia and hypotension-the Bezold-Jarisch reflex, which is explained by the preferential distribution of vagal nerves in the inferior wall of the left ventricle. We report a 76-year-old man who showed a perfusion defect in the inferior wall with redistribution on exercise scintigraphy with thallium-201. Of note, during exercise at an intensity of 100 watts, the patient's heart rate transiently decreased from 122 to 95 bpm in sinus rhythm, accompanied by ST-segment depression. Read More

Ann Noninvasive Electrocardiol 2020 Apr 26:e12758. Epub 2020 Apr 26.

Department of Pulmonary Circulation, Thromboembolic Diseases and Cardiology, Centre of Postgraduate Medical Education, European Health Centre, Otwock, Poland.

Background: The remodeling of the right heart in patients with chronic pulmonary hypertension (cPH) is associated with the appearance of electrocardiographic (ECG) abnormalities. We investigated the resolution of ECG markers of right ventricular hypertrophy (RVH) caused by acute and long-term hemodynamic improvement.

Methods: Twenty-nine (29) patients with chronic thromboembolic pulmonary hypertension (CTEPH) and seven patients with pulmonary arterial hypertension (PAH) were included in the analysis. Read More

Ann Noninvasive Electrocardiol 2020 Apr 23:e12763. Epub 2020 Apr 23.

Heart and Vascular Center, Semmelweis University, Budapest, Hungary.

Background: Structural myocardial changes in hypertrophic cardiomyopathy (HCM) are associated with different abnormalities on electrocardiographs (ECGs). The diagnostic value of the ECG voltage criteria used to screen for left ventricular hypertrophy (LVH) may depend on the presence and degree of myocardial fibrosis. Fibrosis can cause other changes in ECG parameters, such as pathological Q waves, fragmented QRS (fQRS), or repolarization abnormalities. Read More

Ann Noninvasive Electrocardiol 2020 Apr 22:e12761. Epub 2020 Apr 22.

Mahidol University Faculty of Medicine Ramathibodi Hospital, Bangkok, Thailand.

Background: In patients with ischemic heart disease (IHD), many studies demonstrated an association between fragmented QRS complex (fQRS) on 12-lead ECG and myocardial scar, heart failure, and increased mortality. However, data in adults without history of IHD is limited. We aimed to evaluate whether there is an association between fQRS and IHD diagnosed by stress cardiac MRI. Read More

Ann Noninvasive Electrocardiol 2020 Apr 18:e12764. Epub 2020 Apr 18.

Department of Cardiology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey.

Background: T-wave peak-to-end interval (TPEI) is a measure of repolarization dispersion on surface electrocardiogram (ECG). TPEI has been reported as a prognostic parameter with heart disorders. In this study, we aimed to evaluate the relationship between echocardiogram-derived right heart parameters, right heart catheterization (RHC) measurements, and TPEI in patients with precapillary pulmonary arterial hypertension (PAH). Read More

Ann Noninvasive Electrocardiol 2020 Apr 11:e12754. Epub 2020 Apr 11.

Department of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China.

To explore the strategy of acute cerebral artery embolism after radiofrequency catheter ablation (RFA) for atrial fibrillation (AF). Reporting two cases with acute cerebral infarction after RFA for AF. Two patients were both with AF, and intracardiac thrombus was excluded through transesophageal echocardiogram (TEE) before procedure. Read More

Ann Noninvasive Electrocardiol 2020 Apr 10:e12751. Epub 2020 Apr 10.

Department of Cardiology, Copenhagen University Hospital of Bispebjerg, Copenhagen, Denmark.

Background: P-wave duration (P ) and P-wave area (P ) have been linked to risk of atrial fibrillation (AF), but they do not improve the efficacy of Framingham AF risk score. We suggest the incorporation of both variables in one index, the P-wave area/P-wave duration (P ) index, which may be considered an expression of the average amplitude of the P wave that reflects aspects of P-wave morphology.

Objective: To assess the prognostic value of P-wave area/P-wave duration index (P index) in lead II together with other P-wave indices (PWIs) in incidence of AF in the Copenhagen Holter Study. Read More

Ann Noninvasive Electrocardiol 2020 Mar 21:e12753. Epub 2020 Mar 21.

Department of Electrophysiology, Rhode Island Hospital, Brown University, Providence, RI, USA.

Patients with epilepsy suffer from a higher mortality rate than the general population, a portion of which is not due to epilepsy itself or comorbid conditions. Sudden unexpected death in epilepsy (SUDEP) is a common but poorly understood cause of death in patients with intractable epilepsy and often afflicts younger patients. The pathophysiology of SUDEP is poorly defined but does not appear to be related to prolonged seizure activity or resultant injury. Read More

Ann Noninvasive Electrocardiol 2020 Jul 18;25(4):e12750. Epub 2020 Mar 18.

Department of Cardiology and Vascular Medicine Faculty of Medicine Universitas Indonesia, National Cardiovascular Center Harapan Kita, Jakarta, Indonesia.

Background: Fragmented QRS (fQRS) is postulated to be associated with ventricular dyssynchrony and might be able to predict a nonresponse to cardiac resynchronization therapy (CRT) implantation. In this systematic review and meta-analysis, we aim to assess whether fQRS can be a marker of intraventricular dyssynchronies in patients with ischemic and nonischemic cardiomyopathy and whether it is an independent predictor of nonresponse in patients receiving CRT.

Methods: We performed a comprehensive search on topics that assesses fQRS and its association with intraventricular dyssynchrony and nonresponse to CRT up until September 2019. Read More

Ann Noninvasive Electrocardiol 2020 03;25(2):e12756

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

Ann Noninvasive Electrocardiol 2020 03 3;25(2):e12755. Epub 2020 Mar 3.

Centre for Human Drug Research, Leiden, The Netherlands.

Ann Noninvasive Electrocardiol 2020 Jul 29;25(4):e12747. Epub 2020 Feb 29.

Department of Pediatric Cardiovasology, The Children's Medical Center, The Second Xiangya Hospital, Central South University, Changsha, China.

Objective: To investigate the diagnostic and prognostic value of T-wave amplitude difference between supine and orthostatic electrocardiogram (ECG) in children and adolescents with postural orthostatic tachycardia syndrome (POTS).

Methods: A total of 100 children and adolescents (POTS group, 50 males and 50 females, aged at 11.0 ± 2. Read More

Ann Noninvasive Electrocardiol 2020 Jul 27;25(4):e12748. Epub 2020 Feb 27.

Department of Cardiology, the First Affiliated Hospital of Soochow University, Suzhou, China.

Background: Heart rate acceleration and deceleration capacities are novel parameters that can quantify sympathetic and vagal modulation. However, how acceleration and deceleration capacities associated with circadian blood pressure (BP) variation remains unknown.

Methods: A total of 141 patients with essential hypertension were included in our study. Read More

Ann Noninvasive Electrocardiol 2020 Jul 21;25(4):e12749. Epub 2020 Feb 21.

Department of Cardiovascular Medicine, Fukushima Medical University, Fukushima, Japan.

Background: Cardiac amyloidosis (CA) is characterized by left ventricular hypertrophy (LVH) and autonomic nervous imbalance due to amyloid infiltration. However, autonomic dysfunction is often seen in heart failure (HF) with LVH from other etiologies. We aimed to characterize autonomic dysfunction in CA from other etiologies of LVH. Read More

Ann Noninvasive Electrocardiol 2020 Feb 21:e12752. Epub 2020 Feb 21.

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

PR-segment depression with multilead ST-segment elevation and ST-segment depression in lead aVR are classic ECG manifestation of acute pericarditis. We present a patient, where the etiology of these ECG features was acute ST-elevation myocardial infarction due to left circumflex artery occlusion. To avoid misdiagnosis, unnecessary examinations, and inappropriate therapeutic decisions, the possibility of ST-segment elevation myocardial infarction should be kept in mind even when ECG changes typical for pericarditis are encountered in chest pain patients. Read More

Ann Noninvasive Electrocardiol 2020 Jul 5;25(4):e12739. Epub 2020 Feb 5.

Department of Cardiovascular Medicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.

Background: Several studies have explored the association between P wave terminal force in lead V1 (PTFV1) and risk of atrial fibrillation (AF) occurrence, but the results were controversial. This meta-analysis aimed to examine whether abnormal PTFV1 could predict AF occurrence.

Methods: We searched PubMed, Embase, and Cochrane Library databases for articles published before August 25, 2018. Read More

Ann Noninvasive Electrocardiol 2020 Jul 29;25(4):e12744. Epub 2020 Jan 29.

Heart Research Follow-Up Program, University of Rochester Medical Center, Rochester, NY, USA.

Background: Implantation of the subcutaneous implantable cardioverter-defibrillator (S-ICD) is spreading and has been shown to be safe and effective; however, it does not provide brady-pacing. Currently, data on the need for brady-pacing and cardiac resynchronization therapy (CRT) implantation in patients with ICD indication are limited.

Methods: The Multicenter Automatic Defibrillator Implantation Trial (MADIT)-II enrolled post-MI patients with reduced ejection fraction (EF ≤ 35%), randomized to either an implantable cardioverter-defibrillator (ICD) or conventional medical therapy. Read More

Ann Noninvasive Electrocardiol 2020 Jan 29:e12742. Epub 2020 Jan 29.

Department of Pediatrics, University of Minnesota/Masonic Children's Hospital, Minneapolis, MN, USA.

Wrist-worn devices are popular for heart rate monitoring, including use of photoplethysmography. The Apple Watch series 4 can identify atrial fibrillation. We describe a case of identification re-entrant supraventricular tachycardia not identified by outpatient rhythm monitoring, however, was identified by the Apple Watch series 4, which lead to electrophysiology study and successful ablation of atrioventricular nodal re-entrant tachycardia. Read More

Ann Noninvasive Electrocardiol 2020 Jul 27;25(4):e12745. Epub 2020 Jan 27.

Department of Information Engineering, Università Politecnica delle Marche, Ancona, Italy.

Background: Sudden infant death syndrome is more frequent in preterm infants (PTI) than term infants and may be due to cardiac repolarization instability, which may manifest as T-wave alternans (TWA) on the electrocardiogram (ECG). Therefore, the aim of the present work was to analyze TWA in nonpathological PTI and to open an issue on its physiological interpretation.

Methods: Clinical population consisted of ten nonpathological PTI (gestational age ranging from 29 to 34  weeks; birth weight ranging from 0. Read More

Ann Noninvasive Electrocardiol 2020 Jul 23;25(4):e12746. Epub 2020 Jan 23.

Department of cardiovascular medicine, Faculty of Medicine, Tanta University, Tanta, Egypt.

Background: Atrial fibrillation (AF) is a common arrhythmia and one of the complications in the setting of ST-elevation myocardial infarction (STEMI). Our objective of the present study was to investigate the incidence, predictors, and outcomes of NOAF in patients with acute STEMI managed with pharmacoinvasive strategy (PIS) versus those managed with primary percutaneous coronary intervention (PPCI).

Methods: The study included 530 patients with STEMI divided into two groups according to the method of treatment. Read More

Ann Noninvasive Electrocardiol 2020 Jul 20;25(4):e12740. Epub 2020 Jan 20.

Division of Cardiology, Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.

Background: Inserting an electrophysiological (EP) catheter into the coronary sinus (CS) via the femoral vein can be difficult and time-consuming in patients with variants of the CS orifice or lumen curve. Our experience with such patients inspired us to develop two new techniques: the Asclepius and Yellow Ribbon techniques.

Methods: Data from a 4-year period were retrieved from records of patients undergoing radiofrequency ablation for paroxysmal supraventricular tachycardia (PSVT) or Wolff-Parkinson-White (WPW) syndrome. Read More

Ann Noninvasive Electrocardiol 2020 Jul 19;25(4):e12741. Epub 2020 Jan 19.

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

Background: The early repolarization pattern (ERP) in electrocardiography (ECG) has been considered as a risk for ventricular fibrillation (VF), but effective methods for identification of malignant ERP are still required. We investigated whether high spatiotemporal resolution 64-channel magnetocardiography (MCG) would enable distinction between benign and malignant ERPs.

Methods: Among all 2,636 subjects who received MCG in our facility, we identified 116 subjects (43 ± 18 years old, 54% male) with inferior and/or lateral ERP in ECG and without structural heart disease, including 13 survivors of VF (ERP-VF(+)) and 103 with no history of VF (ERP-VF(-)). Read More

Ann Noninvasive Electrocardiol 2020 01;25(1):e12737

University of Rochester Medical Center, Rochester, NY, USA.

Ann Noninvasive Electrocardiol 2020 Jul 21;25(4):e12733. Epub 2019 Dec 21.

College of Medicine, 1st Department of Cardiology, Interventional Electrocardiology and Hypertension, Jagiellonian University, Krakow, Poland.

Background: Due to limited data, implantable loop recorders (ILR) are not currently recommended by the guidelines to routinely monitor patients after atrial fibrillation (AF) ablation.

Aims: To validate the diagnostic value of ILR after AF ablation, modern generation ILRs (LINQ) were implanted in patients scheduled for cryoballoon ablation of AF (CBA).

Methods: We included 29 patients with frequent and symptomatic episodes of paroxysmal AF. Read More

Ann Noninvasive Electrocardiol 2019 Dec 19:e12735. Epub 2019 Dec 19.

Department of Internal Medicine, Homer Stryker M.D. School of Medicine, Western Michigan University, Kalamazoo, MI, USA.

Wolff-Parkinson-White (WPW) syndrome is a conduction disturbance in which atrial impulses are transmitted to the ventricles by an accessory pathway instead of the normal atrioventricular conduction. The WPW syndrome may either simulate myocardial infarction or mask the electrocardiographic abnormalities of an acute MI. However, concealed WPW revealed after an acute coronary syndrome is rare with few cases reported in the literature. Read More

Ann Noninvasive Electrocardiol 2020 Jul 17;25(4):e12736. Epub 2019 Dec 17.

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: Percutaneous coronary intervention (PCI) is effective in treating patients with acute coronary syndrome (ACS) but is associated with some serious complications. Nicorandil is an anti-anginal agent acting to improve microvascular circulation and to increase coronary blood flow. The objective of this article is to evaluate the effects of intracoronary injection followed with continuous intravenous injection of nicorandil on ECG parameters in patients with unstable angina pectoris (UA) undergoing PCI. Read More

Ann Noninvasive Electrocardiol 2020 Jul 11;25(4):e12732. Epub 2019 Dec 11.

Department of Cardiology, University Hospital Gent, Gent, Belgium.

Background: Complete left bundle branch block (cLBBB) is associated with increased cardiovascular mortality and heart failure. On the contrary, the clinical relevance of incomplete left bundle branch block (iLBBB) is less known. This study investigated the profile and outcome of iLBBB patients and assessed the risk of progression to cLBBB. Read More

Ann Noninvasive Electrocardiol 2020 Jul 6;25(4):e12734. Epub 2019 Dec 6.

Department of Cardiology, Faculty of Medicine, BezmiÂlem Foundation University, Istanbul, Turkey.

Background: We investigated the role of ventricular repolarization parameters to predict complete atrioventricular block in patients undergoing transcatheter aortic valve implantation (TAVI).

Methods: A total of 150 patients undergoing TAVI due to severe aortic stenosis were included in this retrospective cohort study. Patients were assigned in two groups based on the presence (n: 49) or absence (n: 101) of complete atrioventricular block after TAVI. Read More

Ann Noninvasive Electrocardiol 2020 May 28;25(3). Epub 2019 Nov 28.

Department of Cardiology, Cardiocentro Ticino, Lugano, Switzerland.

Background: Acute myocarditis represents a challenging diagnosis as there is no pathognomonic clinical presentation. In patients with myocarditis, electrocardiogram (ECG) can display a variety of non-specific abnormalities. Nevertheless, ECG is widely used as an initial screening tool for myocarditis. Read More

Ann Noninvasive Electrocardiol 2020 03 24;25(2):e12730. Epub 2019 Nov 24.

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

Pharmaceuticals that prolong ventricular repolarization may be proarrhythmic in susceptible patients. While this fact is well recognized, schemes for sequential QTc interval monitoring in patients receiving QT-prolonging drugs are frequently overlooked or, if implemented, underutilized in clinical practice. There are several reasons for this gap in day-to-day clinical practice. Read More

Ann Noninvasive Electrocardiol 2020 Jul 24;25(4):e12729. Epub 2019 Nov 24.

Department of Electrocardiogram, The First People's Hospital of Wenling, Wenling, China.

Background: De Winter syndrome is an electrocardiogram (ECG) pattern related to acute occlusion of the anterior descending artery. The incidence rate of De Winter syndrome is rare, but still requires much attention from clinicians.

Methods: Two patients who finnaly diagnosed with De Winter syndrome were included in our study. Read More

Ann Noninvasive Electrocardiol 2020 May 20;25(3):e12723. Epub 2019 Nov 20.

First Department of Medicine, Faculty of Medicine, University Medical Centre Mannheim (UMM), University of Heidelberg, Mannheim, Germany.

Introduction: The Brugada syndrome is associated with arrhythmic events, which may even lead to sudden cardiac death (SCD) as it causes arrhythmic events. A typical Brugada syndrome ECG type I can be triggered at fever situations. The aim of this pooled meta-analysis is to further explore the baseline characteristics and the association of fever to BrS-related arrhythmic events. Read More

Ann Noninvasive Electrocardiol 2019 Nov 20:e12731. Epub 2019 Nov 20.

Department of Cardiology, First People's Hospital of Yunnan Province, Kunming, China.

Isolated ventricular noncompaction is an unclassified cardiomyopathy due to intrauterine arrest of compaction of the loose interwoven meshwork. Its mortality and morbidity are high, including heart failure, thromboembolic events, and ventricular arrhythmias. Isolated right ventricular noncompaction was reported rarely, especially that causes pulmonary embolism and ventricular tachycardia. Read More

Ann Noninvasive Electrocardiol 2020 May 14;25(3):e12728. Epub 2019 Nov 14.

First Cardiology Clinic, "Hippokration" General Hospital, National and Kapodistrian University of Athens, School of Medicine, Athens, Greece.

Background: Electrocardiogram (ECG) is considered the initial screening method for the detection of left ventricular hypertrophy (LVH) despite its low sensitivity. However, there are no data on how ECG criteria for LVH perform in patients with concentric (cLVH) and eccentric LVH (eLVH).

Methods: In the setting of the Corinthia cross-sectional study, ECGs were analyzed in 1,570 participants of the study. Read More

Ann Noninvasive Electrocardiol 2020 May 14;25(3):e12721. Epub 2019 Nov 14.

Department of Cardiovascular and Respiratory Medicine, Shiga University of Medical Science, Otsu, Japan.

Background: The exact differences between the TU wave complex of ATS1 and that of healthy individuals remain to be investigated. We sought to characterize the TU wave complex of Andersen-Tawil syndrome type 1 (ATS1) using high frequency electrocardiogram (ECG) data.

Methods: Electrocardiograms were recorded as time series data with a 2 kHz frequency ECG amplifier in 13 patients with ATS1 (positive for KCNJ2 mutation, ATS1 group) and age-matched healthy individuals (control group). Read More