Computerized interpretation of electrocardiograms: taking stock and implementing new knowledge
After reading the superb review by Schl äpfer and Wellens [1] about computer interpreted electrocardiograms (CIE), I thought that in essence the content of their contribution mainly pertain to the readers and authors of the Journal of Electrocardiology, and the members of the International Society of Computerized Electrocardiology, and t he International Society of Electrocardiology, from whom action is expected to improve the current status of CIE. The authors called for international standardization of electrocardiogram (ECG) measurements, cross-talk among ECG machine manufacturers, and harmonization of diagnostic crite...
Source: Journal of Electrocardiology - February 22, 2018 Category: Cardiology Authors: John E. Madias Source Type: research
Origins of the power of the low frequency heart rate variability bandwidth
We hypothesized that heart period (HP) variability in the low frequency (LF) band is due to transient fluctuations of about 10 s in HP sequences, associated with fluctuations in blood pressure. (Source: Journal of Electrocardiology)
Source: Journal of Electrocardiology - February 20, 2018 Category: Cardiology Authors: Daniel Roach, Robert Sheldon Source Type: research
Linking stroke-induced heart injury and neurogenic atrial fibrillation: a hypothesis to be proven
Ischemic strokes can induce cardiac structural and functional damage. Essentially stroke-induced heart injury (SIHI) is part of a wider spectrum of brain injuries (e.g., cerebral infarction, intracranial hemorrhage) leading to heart disease, known as neurogenic heart disease. Similarly, the concept of atrial fibrillation (AF) diagnosed after stroke (AFDAS) was established to reflect the complexity of this specific type of AF that is unknown until the time of stroke [1]. The detection of AF after ischemic stroke is usually regarded as the cause of the stroke (cardiogenic AFDAS). (Source: Journal of Electrocardiology)
Source: Journal of Electrocardiology - February 20, 2018 Category: Cardiology Authors: Luciano A. Sposato, Sebastian Fridman, Shawn N. Whitehead, Renato D. Lopes Source Type: research
Electrocardiographic changes and conduction disturbances after transfemoral aortic valve implantation with Edwards Sapien 3 prosthesis
The aim of this study is to describe electrocardiographic changes and conduction abnormalities in patients undergoing transcatheter aortic valve implantation (TAVI). (Source: Journal of Electrocardiology)
Source: Journal of Electrocardiology - February 20, 2018 Category: Cardiology Authors: Unzue Leire, Garc ía Eulogio, Rodríguez Rodrigo Francisco José, Parra Jiménez Francisco Javier, Medina Peralta Juan, Díaz-Antón Belen, Rodríguez del Río Miguel, Fontenla Adolfo, Teijeiro Rodrigo, Rubio-Alonso Belén Source Type: research
Origins of the power of the low frequency heart rate variability bandwidth
We hypothesized that heart period (HP) variability in the low frequency (LF) band is due to transient fluctuations of about 10 s in HP sequences, associated with fluctuations in blood pressure. (Source: Journal of Electrocardiology)
Source: Journal of Electrocardiology - February 20, 2018 Category: Cardiology Authors: Daniel Roach, Robert Sheldon Source Type: research
Linking Stroke-Induced Heart Injury and Neurogenic Atrial Fibrillation: A Hypothesis to be Proven
Ischemic strokes can induce cardiac structural and functional damage. Essentially stroke-induced heart injury (SIHI) is part of a wider spectrum of brain injuries (eg, cerebral infarction, intracranial hemorrhage) leading to heart disease, known as neurogenic heart disease. Similarly, the concept of atrial fibrillation (AF) diagnosed after stroke (AFDAS) was established to reflect the complexity of this specific type of AF that is unknown until the time of stroke [1]. The detection of AF after ischemic stroke is usually regarded as the cause of the stroke (cardiogenic AFDAS). (Source: Journal of Electrocardiology)
Source: Journal of Electrocardiology - February 20, 2018 Category: Cardiology Authors: Luciano A. Sposato, Sebastian Fridman, Shawn N. Whitehead, Renato D. Lopes Tags: Editorial Article Source Type: research
Electrocardiographic changes and conduction disturbances after transfemoral aortic valve implantation with Edwards Sapien 3 prosthesis
The aim of this study is to describe electrocardiographic changes and conduction abnormalities in patients undergoing transcatheter aortic valve implantation (TAVI). (Source: Journal of Electrocardiology)
Source: Journal of Electrocardiology - February 20, 2018 Category: Cardiology Authors: Leire Unzue, Eulogio Garc ía, Francisco José Rodríguez Rodrigo, Francisco Javier Parra Jiménez, Juan Medina Peralta, Belen Díaz-Antón, Miguel Rodríguez del Río, Adolfo Fontenla-Cerezuela, Rodrigo Teijeiro, Belén Rubio-Alonso Source Type: research
Sinus tachycardia presenting as a wide and narrow complex tachyarrhythmia: What is the ‘link’?
We describe a neonate that developed alternating wide and narrow complex tachycardias following heart surgery for congenital heart defect. Although the etiology was sinus tachycardia, a premature atrial complex initiated aberrancy due to phase 3 block that was perpetuated due to ‘linking’ at similar or even slower heart rates. Similarly, there was abrupt transition from wide to narrow complex tachycardia following a premature ventricular complex without a change in subsequent heart rate. This was explained by interruption of linking phenomenon by premature ventricular a ctivation. (Source: Journal of Electrocardiology)
Source: Journal of Electrocardiology - February 19, 2018 Category: Cardiology Authors: Chenni S. Sriram, Mario D. Gonzalez Source Type: research
Learning and teaching electrocardiography in the 21st century: A neglected art
It is now over a century since the introduction of electrocardiography (ECG) by Willelm Einthoven in 1902 [1,2]. The ECG is probably one of the most commonly used test in clinical practice, and, unlike many other clinical tests, the ECG results are available immediately. This is important for an emergency condition where an immediate decision should be made such as in the case of acute myocardial infarction or stroke. Professor Hein Wellens stated that, “Worldwide, approximately 3 million ECGs are made daily. (Source: Journal of Electrocardiology)
Source: Journal of Electrocardiology - February 19, 2018 Category: Cardiology Authors: Mohammad Shenasa Source Type: research
Sinus tachycardia presenting as a wide and narrow complex tachyarrhythmia: What is the “link”?
We describe a neonate that developed alternating wide and narrow complex tachycardias following heart surgery for congenital heart defect. Although the etiology was sinus tachycardia, a premature atrial complex initiated aberrancy due to phase 3 block that was perpetuated due to “linking” at similar or even slower heart rates. Similarly, there was abrupt transition from wide to narrow complex tachycardia following a premature ventricular complex without a change in subsequent heart rate. This was explained by interruption of linking phenomenon by premature ventricular a ctivation. (Source: Journal of Electrocardiology)
Source: Journal of Electrocardiology - February 19, 2018 Category: Cardiology Authors: Chenni S. Sriram, Mario D. Gonzalez Source Type: research
Learning and Teaching Electrocardiography in the 21st Century: A Neglected Art
It is now over a century since the introduction of electrocardiography (ECG) by Willelm Einthoven in 1902 [1,2]. The ECG is probably one of the most commonly used test in clinical practice, and, unlike many other clinical tests, the ECG results are available immediately. This is important for an emergency condition where an immediate decision should be made such as in the case of acute myocardial infarction or stroke. Professor Hein Wellens stated that, “Worldwide, approximately 3 million ECGs are made daily. (Source: Journal of Electrocardiology)
Source: Journal of Electrocardiology - February 19, 2018 Category: Cardiology Authors: Mohammad Shenasa Source Type: research
Magnetocardiographic classification and non-invasive electro-anatomical imaging of outflow tract ventricular arrhythmias in recreational sport activity practitioners
Ventricular arrhythmias (VAs) with left bundle-branch-block and inferior axis morphology (LBBB-IA), suggestive of outflow tract (OT) origin, are a challenge in sports medicine because they can be benign or expression of a silent cardiomyopathy. Non-invasive classification is essential to plan ablation strategy if required. We aimed to evaluating magnetocardiographic (MCG) discrimination of OT-VAs site of origin (SoO). MCG and ECG data of 26 sports activity practitioners, with OT-VAs were analyzed. (Source: Journal of Electrocardiology)
Source: Journal of Electrocardiology - February 17, 2018 Category: Cardiology Authors: Gianmarco Lombardi, Anna Rita Sorbo, Gianluigi Guida, Lara La Brocca, Riccardo Fenici, Donatella Brisinda Source Type: research
Inhibition and restoration of CRT pacing – What is the mechanism?
The electrocardiogram (ECG) interpretation in patients with cardiac resynchronization therapy (CRT) may be challenging. The difficulty increases if not well-known pacemaker algorithm is turned on. We show a T-wave protection algorithm (LVTP) in a patient with CRT. Accelerated sinus rhythm and intermittent oversensing in left ventricular channel resulted in loss of CRT pacing. The restoration of biventricular pacing occurred when atrial rate decreased. We provide detailed descriptions of the electrocardiogram and intracardiac electrogram. (Source: Journal of Electrocardiology)
Source: Journal of Electrocardiology - February 17, 2018 Category: Cardiology Authors: Andrzej Z ąbek, Barbara Małecka, Maciej Dębski, Krzysztof Boczar, Katarzyna Holcman, Mateusz Ulman, Jacek Lelakowski Source Type: research
Magnetocardiographic classification and non-invasive electro-anatomical imaging of outflow tract ventricular arrhythmias in recreational sport activity practitioners
Ventricular arrhythmias (VAs) with left bundle-branch-block and inferior axis morphology (LBBB-IA), suggestive of outflow tract (OT) origin, are a challenge in sports medicine because they can be benign or expression of a silent cardiomyopathy. Non-invasive classification is essential to plan ablation strategy if required. We aimed to evaluating magnetocardiographic (MCG) discrimination of OT-VAs site of origin (SoO). MCG and ECG data of 26 sports activity practitioners, with OT-VAs were analyzed. (Source: Journal of Electrocardiology)
Source: Journal of Electrocardiology - February 17, 2018 Category: Cardiology Authors: Gianmarco Lombardi, Anna Rita Sorbo, Gianluigi Guida, Lara La Brocca, Riccardo Fenici, Donatella Brisinda Source Type: research
