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Journal J Electrocardiol

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The use of ivabradine in a patient with idiopathic ventricular arrhythmia originating from the left ventricular summit.

Göksel Çinier, Mert İlker Hayıroğlu, Kazım Serhan Özcan, Levent Pay, Ahmet İlker Tekkeşin, Kadir Gürkan,

Idiopathic ventricular arrhythmias (VA) are common and treatment options include anti-arrhythmic drugs (AAD) or catheter ablation. Patients presenting with idiopathic VA which is originating from the left ventricular summit (LVS) poses a particular challenge as the success for catheter ablation is low and AAD's may not be used long-term due ... Read more >>

J Electrocardiol (Journal of electrocardiology)
[2022, 71:32-36]

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Terminal T-wave inversion predicts reperfusion tachyarrhythmias in STEMI.

Ksenia A Sedova, Marina M Demidova, Jan E Azarov, Jan Hejda, Jonas Carlson, Olesya G Bernikova, Natalia Arteyeva, David Erlinge, Pyotr G Platonov,

<h4>Introduction</h4>A reliable electrocardiographic predictor of ventricular fibrillation (VF) in patients with ST elevation myocardial infarction (STEMI) is lacking so far. Previous experimental/simulation study suggested a terminal T-wave inversion (TTWI) in ischemia-related ECG leads corresponding to anterior infarct localization as an independent predictor of reperfusion VF (rVF). This T-wave characteristic has ... Read more >>

J Electrocardiol (Journal of electrocardiology)
[2022, 71:28-31]

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Using a smartwatch to record an electrocardiogram in the pediatric population.

Justine Leroux, Marc Strik, F Daniel Ramirez, Sylvain Ploux, Benjamin Sacristan, Julie Chabaneix-Thomas, Zakaria Jalal, Jean-Benoit Thambo, Pierre Bordachar,

The accuracy of smartwatch ECG recordings in adults has been demonstrated primarily in the automated diagnosis of atrial fibrillation. While the detection of atrial fibrillation is a priority among adults given the arrhythmia's prevalence and actionable ramifications, the potential value of smartwatch ECG recordings in children differs considerably. In this ... Read more >>

J Electrocardiol (Journal of electrocardiology)
[2022, 71:25-27]

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Spatiotemporal approximation of cardiac activation and recovery isochrones.

Matthijs Cluitmans, Jaume Coll-Font, Burak Erem, Laura Bear, Uyên Châu Nguyên, Rachel Ter Bekke, Paul G A Volders, Dana Brooks,

<h4>Background</h4>The sequence of myocardial activation and recovery can be studied in detail by invasive catheter recordings of cardiac electrograms (EGMs), or noninvasive inverse reconstructions thereof with electrocardiographic imaging (ECGI). Local activation and recovery times are obtained from a unipolar EGM by the moment of maximum downslope of the QRS complex ... Read more >>

J Electrocardiol (Journal of electrocardiology)
[2021, 71:1-9]

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Agreement between respiratory rate measurement using a combined electrocardiographic derived method versus impedance from pneumography.

Linda K Bawua, Christine Miaskowski, Sukardi Suba, Fabio Badilini, David Mortara, Xiao Hu, George W Rodway, Thomas J Hoffmann, Michele M Pelter,

<h4>Background</h4>Impedance pneumography (IP) is the current device-driven method used to measure respiratory rate (RR) in hospitalized patients. However, RR alarms are common and contribute to alarm fatigue. While RR derived from electrocardiographic (ECG) waveforms hold promise, they have not been compared to the IP method.<h4>Purpose</h4>Study examined the agreement between the ... Read more >>

J Electrocardiol (Journal of electrocardiology)
[2021, 71:16-24]

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Remote assessment of QT interval: A new perspective for implantable cardiac monitors.

Domenico Maria Carretta, Rossella Troccoli, Alessia Dentico, Matteo De Vita, Andrea Spadaro Guerra, Daniele Giacopelli, Carlo D'Agostino,

<h4>Background</h4>There is an unmet need for simple tools for monitoring QT intervals. The feasibility of measuring the QT interval on the single‑lead subcutaneous electrocardiogram (subECG) recorded and transmitted by implantable cardiac monitors (ICMs) has never been tested.<h4>Methods</h4>We performed a standard ECG in patients who had already been implanted with a ... Read more >>

J Electrocardiol (Journal of electrocardiology)
[2021, 71:10-15]

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Is derived vectorcardiography a potential screening tool for pulmonary hypertension?

Amr El-Bokl, Erick Jimenez, Gurumurthy Hiremath, Daniel Cortez,

<h4>Background</h4>Patients with atrial septal defects and pulmonary hypertension would benefit from early identification and treatment of pulmonary hypertension prior to closure. Noninvasive screening tools for pulmonary hypertension are inadequate. Electrocardiography, though readily available, has so far been of limited screening utility in patients with pulmonary hypertension. We hypothesize that derived ... Read more >>

J Electrocardiol (Journal of electrocardiology)
[2021, 70:79-83]

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Association between T wave morphology parameters and abnormal cardiac SPECT imaging.

Samer Jaber, Udi Nussinovitch, Tomer Stahi, Yoav Arnson,

<h4>Background</h4>T-wave morphology dispersion (TMD) described the electrocardiographic T-wave heterogeneity during a single cardiac cycle. Total cosine R-to-T (TCRT) is the average of the cosines of the angles between the QRS and T vectors on the ECG. We examine the predictive value of TMD and TCRT calculation to assess abnormal myocardial ... Read more >>

J Electrocardiol (Journal of electrocardiology)
[2021, 70:65-69]

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Enhancing electrocardiographic analysis by combining a high-resolution 12-lead ECG with novel software tools.

Javier C Barcos, Juan D Humphreys, Iván A Tello Santacruz, Juan P Guzman, María L Fernández Recalde, Horacio A Avaca, César R Cáceres Monié,

<h4>Introduction</h4>Signal-averaged electrocardiography is a non-invasive, computerized technique that amplifies, filters, and averages cardiac electrical signals reducing contaminating noise to obtain a high-resolution record. The most widely used signal averaging (SA) method involves a bipolar X, Y, and Z orthogonal lead system. Information is limited regarding its application in the standard ... Read more >>

J Electrocardiol (Journal of electrocardiology)
[2021, 70:70-74]

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Clinico-histopathological correlation of symptomatic left main coronary artery electrocardiographic ischemia pattern in a young child with hypertrophic cardiomyopathy.

Jennifer M Blake, Utkarsh Kohli, Kelly M Hallman, Bahig M Shehata, Chenni S Sriram,

The specific electrocardiographic (ECG) pattern of left main coronary artery ischemia is exceptionally rare in children and under recognized. Occasional reports are bereft of a detailed mechanistic ECG description and limited to dissection, spasm, or anomalous origin of the left main coronary artery. An association with pediatric hypertrophic cardiomyopathy (HCM) ... Read more >>

J Electrocardiol (Journal of electrocardiology)
[2021, 70:75-78]

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Predictors of positive response to beta-blockers for treatment of premature ventricular complexes.

Serdar Demir, Kamil Gulsen, Alper Kepez, Abdulkadir Uslu, Ayhan Kup, Mehmet Celik, Batur Gonenc Kanar, Cagan Yildirim, Erol Tulumen, Taylan Akgun,

<h4>Background</h4>The aim of the present study is to investigate the possible factors that might be predictive of effective antiarrhythmic effect of beta-blockers on premature ventricular complexes (PVC).<h4>Methods</h4>Data of 190 eligible consecutive patients to whom beta-blocker therapy had been initiated for treatment of PVC's were retrospectively evaluated. The Holter recording acquired ... Read more >>

J Electrocardiol (Journal of electrocardiology)
[2021, 70:50-55]

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An algorithm to assist novices with electrocardiogram interpretation: Validation with the Delphi Method.

Susil Pallikadavath, Jamie Watts, Alastair J Sandilands, Simon Gay,

<h4>Purpose</h4>Electrocardiograms (ECG) are often poorly interpreted by novices and this can delay time-sensitive, critical intervention. This study aimed to assess, improve and validate a stepwise ECG algorithm designed to assist with ECG interpretation by novices by soliciting the opinions of an international cohort of expert cardiologists.<h4>Methods</h4>The Delphi Method was used, ... Read more >>

J Electrocardiol (Journal of electrocardiology)
[2021, 70:56-64]

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Application of intracavitary electrocardiogram classification in peripherally inserted central catheter localization in cancer patients.

Jianghua Li, Yonghong Chai, Yuxin Zhu, Juan Shen, Sa Liu, Meiqin Hu, Zengping Qi,

<h4>Objective</h4>This study aimed to analyze the application value of intracavitary electrocardiogram (ECG) classification in peripherally inserted central catheter (PICC) tip localization in patients with cancer.<h4>Methods</h4>Using a self-control study method, 325 patients with cancer underwent intracavitary ECGs to position the tip of a PICC catheter. The P wave, QRS wave amplitude, ... Read more >>

J Electrocardiol (Journal of electrocardiology)
[2021, 70:39-44]

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Mitral valve regurgitation is associated with left atrial fibrosis in patients with atrial fibrillation.

Yanfang Wu, Peng Gao, Quan Fang, Yongtai Liu, Kangan Cheng, Zhongwei Cheng, Hua Deng, Taibo Chen, Deyan Yang,

<h4>Background</h4>Low voltage zones (LVZ) are associated with poor outcomes in patients with atrial fibrillation (AF). The APPLE and DR-FLASH scores predict LVZ in patients undergoing catheter ablation. This study aimed to assess the relationship of mitral valve regurgitation (MR) and LVZ after adjusting for APPLE or DR-FLASH scores.<h4>Methods</h4>This was a ... Read more >>

J Electrocardiol (Journal of electrocardiology)
[2021, 70:24-29]

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Electrocardiographic biosignals to predict atrial fibrillation: Are we there yet?

Anthony H Kashou, Peter A Noseworthy,

The prevalence of atrial fibrillation (AF) continues to grow in an aging population, and its impact on both patients and the health care system has has made it a global burden. There are limited available options to detect individuals at risk of AF that may benefit from prevention and treatment ... Read more >>

J Electrocardiol (Journal of electrocardiology)
[2021, 70:37-38]

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Left bundle branch pacing?

Yoji Iida,

J Electrocardiol (Journal of electrocardiology)
[2021, 70:35-36]

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V1r + DIIq is a novel and accurate criterion to predict right vs. left paraseptal accessory pathways.

Durmuş Yıldıray Şahin, Onur Kaypakli, Mustafa Lütfullah Ardiç, Yusuf Marangozoğlu, Hasan Koca,

<h4>Purpose</h4>The correct estimation of accessory pathway (AP) localization from surface ECG is critical before the procedure. Our study aimed to detect the predictive value of the V1r + DIIq criterion for differentiating right- from left-sided paraseptal APs.<h4>Methods</h4>We retrospectively included 58 patients with (Wolff-Parkinson-White) WPW syndrome and paraseptal APs who underwent successful catheter ... Read more >>

J Electrocardiol (Journal of electrocardiology)
[2021, 70:30-34]

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S-R index in V1/V3 serves as a novel criterion to discriminate idiopathic premature ventricular contractions originating from posteroseptal right ventricular outflow tract versus right coronary cusp.

Lei Zhao, Ruibin Li, Jidong Zhang, Ruiqin Xie, Jingchao Lu, Jinming Liu, Chenglong Miao, Suyun Liu, Wei Cui,

<h4>Aim</h4>The current study aimed to establish a novel electrocardiographic (ECG) criterion for discrimination of idiopathic premature ventricular contractions (PVCs) originating from posteroseptal right ventricular outflow tract (sRVOT-p) versus right coronary cusp (RCC).<h4>Methods</h4>A total of 76 patients with idiopathic PVCs who underwent mapping and successful ablation were retrospectively included. Among them, ... Read more >>

J Electrocardiol (Journal of electrocardiology)
[2021, 70:7-12]

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QT interval measurement in ventricular pacing: Implications for assessment of drug effects and pro-arrhythmia risk.

James W Schurr, Prabhjot K Grewal, Roger Fan, Eric Rashba,

QT interval prolongation is a known risk factor for development of malignant ventricular arrhythmias. Measurement of the QT interval is difficult in the setting of ventricular pacing (VP), which can prolong depolarization and increase the QT interval, overestimating repolarization time. VP and cardiac resynchronization therapies have become commonplace in modern ... Read more >>

J Electrocardiol (Journal of electrocardiology)
[2021, 70:13-18]

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Avoiding fatal implantable cardioverter-defibrillator complications in patients with catecholaminergic polymorphic ventricular tachycardia by not implanting them.

Christian van der Werf, Arthur A M Wilde,

J Electrocardiol (Journal of electrocardiology)
[2021, 70:2-3]

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Selective proximal left anterior fascicle pacemapping for guiding narrow QRS premature ventricular complex ablation from the right coronary cusp.

Alfredo Chauca-Tapia, Diego Penela, David Soto-Iglesias, Antonio Berruezo,

A 38-year-old woman with a structurally normal heart was referred for catheter ablation due to symptomatic, monomorphic, high burden (12%) premature ventricular complexes (PVC) refractory to medical therapy. The PVC's ECG morphology suggested an origin in the proximal left anterior fascicle (LAF). During procedure PVCs were mechanically suppressed. Consequently, selection ... Read more >>

J Electrocardiol (Journal of electrocardiology)
[2021, 70:4-6]

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To the Editor.

Mario J Mc Loughlin,

J Electrocardiol (Journal of electrocardiology)
[2021, 70:1]

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Rational and design of ST-segment elevation not associated with acute cardiac necrosis (LESTONNAC). A prospective registry for validation of a deep learning system assisted by artificial intelligence.

Manuel Martínez-Sellés, Miriam Juárez, Manuel Marina-Breysse, José María Lillo-Castellano, Albert Ariza,

<h4>Background</h4>Patients with chest pain and persistent ST segment elevation (STE) may not have acute coronary occlusions or serum troponin curves suggestive of acute necrosis. Our objective is the validation and cost-effectiveness analysis of a diagnostic model assisted by artificial intelligence (AI).<h4>Methods</h4>Prospective multicenter registry in two groups of patients with STE: ... Read more >>

J Electrocardiol (Journal of electrocardiology)
[2021, 69:140-144]

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Vagal response during circumferential pulmonary vein isolation decreases the recurrence of atrial fibrillation in the short-term in patients with paroxysmal atrial fibrillation: A prospective, observational study.

Ping Fang, Jinfeng Wang, Youquan Wei, Xianghai Wang, Hao Yang, Meijun Zhang,

<h4>Background</h4>Vagal responses (VRs) are often seen in patients undergoing circumferential pulmonary vein isolation (CPVI). The possible mechanism of VR is that CPVI creates a coincidental modification of the cardiac ganglionated plexi (GP).<h4>Aim</h4>To investigate whether the presence of VR during CPVI impacts post-ablation recurrence in patients with paroxysmal atrial fibrillation (AF).<h4>Methods</h4>A ... Read more >>

J Electrocardiol (Journal of electrocardiology)
[2021, 69:145-150]

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Rate-related QRS morphological changes in left bundle branch pacing: A case report.

Yajun Ji, Yubin Zhang, Kenneth A Ellenbogen, Weijian Huang, Yali Yang,

Studies have shown that a permanent left bundle branch pacing (LBBP) is feasible and may be clinically beneficial. The paced QRS morphology in a permanent LBBP typically manifests as a right bundle branch block pattern (RBBB) because the left ventricle is activated earlier than the right ventricle. We present one ... Read more >>

J Electrocardiol (Journal of electrocardiology)
[2021, 69:136-139]

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