The optimal management of patient with permanent atrial fibrillation and heart failure with reduced ejection fraction – The permanent His-bundle pacing is a solution. A case report
We present a case of 69-years-old male with AF, worsening HF and high burden of RV pacing. (Source: Journal of Electrocardiology)
Source: Journal of Electrocardiology - October 16, 2018 Category: Cardiology Authors: Bartosz Skonieczny, Aleksandra Gajek, Piotr Str ózik, Jacek Zawadzki, Jakub Adamowicz, Jacek Gajek, Agnieszka Slawuta Source Type: research

Ideal admission electrocardiographic parameters in STEMI: What else do we need to learn?
We read with great interest the article entitled ‘Prognosis and first diagnostic ECG in STEMI patients referred to the emergency medical system for primary PCI’ by Meloni et al. [1]. We want to thank the authors for their investigation of the prognostic association between Q wave presence and in-hospital mortality in patients with all types of ST-segment elevation myocardial infarction (STEMI). (Source: Journal of Electrocardiology)
Source: Journal of Electrocardiology - October 13, 2018 Category: Cardiology Authors: Mert İlker Hayıroğlu, Ceyhan Türkkan, Ahmet İlker Tekkeşin Source Type: research

A novel signal-averaged electrocardiogram and an ambulatory-based signal-averaged electrocardiogram show strong correlations with conventional signal-averaged electrocardiogram in healthy subjects: A validation study
This study aimed to validate the novel SAECG and the novel ambulatory-based SAECG devices by comparison with the conventional SAECG device. (Source: Journal of Electrocardiology)
Source: Journal of Electrocardiology - October 10, 2018 Category: Cardiology Authors: Kenichi Hashimoto, Bonpei Takase, Masaaki Nagashima, Yuji Kasamaki, Hiroaki Shimabukuro, Masayoshi Soma, Tomohiro Nakayama Tags: Review Source Type: research

Association of obesity phenotypes with electrocardiographic left ventricular hypertrophy in the general population
Increasing evidence doubts the benign nature of metabolically healthy obesity (MHO). An investigation of the association of MHO and other obesity phenotypes with electrocardiographic left ventricular hypertrophy (ECG-LVH), a risk factor for cardiovascular disease (CVD), can give insight into the pathophysiological basis for increased risk of CVD linked to these phenotypes. (Source: Journal of Electrocardiology)
Source: Journal of Electrocardiology - October 9, 2018 Category: Cardiology Authors: Muhammad Imtiaz Ahmad, Yabing Li, Elsayed Z. Soliman Source Type: research

Atrial flutter and embolic risk: The relationship between atrial flutter cycle length and left atrial appendage function
The potential for thromboembolism in atrial flutter (AFL) is different from atrial fibrillation. AFL cycle length (AFL-CL) may be related to reduced left atrial appendage (LAA) function. Very rapid AFL-CL can lead to mechanical and electrophysiological disorders that contribute to lower LAA emptying velocity (LAEV). The aim of this study is to relate atrial flutter cycle length with LAEV and its role in thrombogenesis. (Source: Journal of Electrocardiology)
Source: Journal of Electrocardiology - October 8, 2018 Category: Cardiology Authors: Ana Paula Susin Os ório, Luciana Eder Martins Barros Simoni, Antonio Lessa Gaudie Ley, Grasiele Bess de Oliveira, Roberto Tofani Santanna, Marcelo Haertel Miglioranza, Gustavo Glotz de Lima, Vidal Essebag, Tiago Luiz Luz Leiria Source Type: research

Differences in amiodarone efficacy in relation to ejection fraction and basal rhythm in patients with implantable cardioverter defibrillators
This study aimed to clarify the association between AF and VAs and to investigate the effect of amiodarone on the incidence of VAs in patients with implantable cardioverter defibrillators (ICDs). (Source: Journal of Electrocardiology)
Source: Journal of Electrocardiology - October 8, 2018 Category: Cardiology Authors: Tetsuya Watanabe, Koichi Inoue, Kazunori Kashiwase, Takanao Mine, Keiji Hirooka, Ryu Shutta, Hiroya Mizuno, Yuji Okuyama, Yasushi Sakata, Shinsuke Nanto, SATISFACTION Investigators Source Type: research

Type 1 Brugada phenocopy in a patient with acute pericarditis
We herein describe a case of an acute pericarditis, in which type 1 Brugada phenocopy (BrP) was documented. The patient was referred to our hospital due to severe chest pain. The twelve-lead electrocardiogram (ECG) on admission showed type 1 Brugada ECG pattern (coved-type) in the precordial leads. Echocardiography only showed mild pericardial effusion. However, his ST segment elevation returned to normal and chest discomfort disappeared 3  weeks later. Our report addresses the possibility that the coved-type ST-segment elevation cannot be a sensitive finding for Brugada syndrome (BrS). (Source: Journal of Electrocardiology)
Source: Journal of Electrocardiology - October 8, 2018 Category: Cardiology Authors: Manli Yu, Qin Zhang, Xinmiao Huang, Xianxian Zhao Source Type: research

Ventricular fibrillation undersensing to calculate a safety threshold for baseline rhythm R-wave amplitudes
We have read with great interest the study of Mark L. Brown [1], on ventricular fibrillation (VF) sensing using Medtronic implantable cardioverter defibrillators (ICDs). Dr. Brown describes the ventricular sensing process performed on Medtronic ICDs, but unfortunately his report does not show further data processed with proprietary filters. Dr. Brown does criticize our recent report [2], in which we documented that baseline rhythm (BR) R-wave amplitudes ≤2.5 mV (Interquartile range: 2.3, 2.8) show potential for high undersensing rates of VF electrograms dropping below the minimum nominal sensitivity during spontaneous ...
Source: Journal of Electrocardiology - October 8, 2018 Category: Cardiology Authors: David Filgueiras-Rama, Jos é María Lillo-Castellano, Jorge G. Quintanilla Source Type: research

Does prematurity unmask disease?
A 55  year old man with a history of asthma, chronic obstructive pulmonary disease, hypertension, diabetes, current smoking, and cocaine use presented to the emergency department with dyspnea on exertion, wheezing, and a dry cough for 4 days. On physical examination, his vital signs were normal, ches t examination revealed audible expiratory wheezing, and cardiovascular examination was normal. An electrocardiogram (ECG) was obtained (Fig. 1A). What is the diagnosis? Is any workup required? (Source: Journal of Electrocardiology)
Source: Journal of Electrocardiology - October 8, 2018 Category: Cardiology Authors: Adam Oesterle, Simon Ermakov, Nora Goldschlager Source Type: research

Electrocardiographic characteristics before and after correction of right-sided congenital heart defects in children and its relation to prognosis
Congenital heart defects are the most common birth defects and occur in 0.8% of all live births. Nowadays, patients with congenital heart defects survive with usually many event-free years despite abnormal cardiac hemodynamics. However, most patients still need life-long follow-up and main factors for morbidity and mortality in these patients are cardiac failure, arrhythmias or pulmonary hypertension (PH) [1]. The electrocardiogram (ECG) is a noninvasive, widely-used, inexpensive tool that can be used during long-term follow-up of these patients, particularly in order to help predict occurrence of rhythm disorders and sudd...
Source: Journal of Electrocardiology - October 4, 2018 Category: Cardiology Authors: Vivian P. Kamphuis, Daphne Raad, Martina Nassif, Cees A. Swenne, Nico A. Blom, Arend D.J. ten Harkel Tags: Review Source Type: research

A larger vectorcardiographic QRS area is associated with left bundle branch block and good prognosis in patients with cardiac resynchronization therapy
The association between the vectorcardiographic QRS area, bundle branch pattern and clinical long-term prognosis in patients who have undergone cardiac resynchronization therapy (CRT) has been unclear. (Source: Journal of Electrocardiology)
Source: Journal of Electrocardiology - October 4, 2018 Category: Cardiology Authors: Tomoyuki Kabutoya, Yasushi Imai, Yasuhiro Yokoyama, Ayako Yokota, Tomonori Watanabe, Takahiro Komori, Kazuomi Kario Source Type: research

Electrocardiogram algorithms used to differentiate wide complex tachycardias demonstrate diagnostic limitations when applied by non-cardiologists
This study aimed to determine the diagnostic efficacy of the Vereckei aVR and Brugada algorithms when applied by NCs. (Source: Journal of Electrocardiology)
Source: Journal of Electrocardiology - October 3, 2018 Category: Cardiology Authors: Adam M. May, Jorge A. Brenes-Salazar, Christopher V. DeSimone, Vaibhav R. Vaidya, Bradley W. Ternus, David O. Hodge, Grace Lin, Siva K. Mulpuru, Abhishek J. Deshmukh, Peter A. Noseworthy, Peter A. Brady Source Type: research

Flecainide overdose presenting with long QT and acute Takotsubo cardiomyopathy
Takotsubo cardiomyopathy is a rare type of reversible cardiomyopathy characterized by the development of left-ventricular (LV) apical ballooning in the absence of significant coronary arterial disease. Initially described in Japan during the 1990s [1], this diagnosis has become more common with advanced cardiac imaging modalities and increasing awareness. The etiology and pathogenesis of Takotsubo remain unclear, but it often follows extreme emotional or physical stress [1]. Catecholamine-induced myocardial stunning and autonomic dysfunction have becoming leading hypotheses [2]. (Source: Journal of Electrocardiology)
Source: Journal of Electrocardiology - September 27, 2018 Category: Cardiology Authors: George Bodziock, Chadwick Armstrong, Jay Montgomery Source Type: research

Triangular “shark fin-like” ST modification in takotsubo syndrome: Challenging the concept of ST-elevation patterns without coronary occlusion?
We read with great interest the article by Cipriani et al. entitled “The electrocardiographic ‘triangular QRS-ST-T waveform’ pattern in patients with ST-segment elevation myocardial infarction: incidence, pathophysiology and clinical implications” [1]. (Source: Journal of Electrocardiology)
Source: Journal of Electrocardiology - September 24, 2018 Category: Cardiology Authors: Nicola Tarantino, Francesco Santoro, Natale Daniele Brunetti Source Type: research

Ejection fraction in left bundle branch block is disproportionately reduced in relation to amount of myocardial scar
The relationship between left ventricular (LV) ejection fraction (EF) and LV myocardial scar can identify potentially reversible causes of LV dysfunction. Left bundle branch block (LBBB) alters the electrical and mechanical activation of the LV. We hypothesized that the relationship between LVEF and scar extent is different in LBBB compared to controls. (Source: Journal of Electrocardiology)
Source: Journal of Electrocardiology - September 17, 2018 Category: Cardiology Authors: Jimmy Axelsson, Bj örn Wieslander, Robert Jablonowski, Igor Klem, Robin Nijveldt, Erik B. Schelbert, Peder Sörensson, Andreas Sigfridsson, Uzma Chaudhry, Pyotr G. Platonov, Rasmus Borgquist, Henrik Engblom, David G. Strauss, Håkan Arheden, Brett D. Atw Source Type: research