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Role of Dipolar and Nondipolar Components of the T Wave in Determining the T Wave Residuum in an Isolated Rabbit Heart Model
(Wiley Blackwell Publishing, Inc, 2004-03)
Introduction: Repolarization heterogeneity has been shown to constitute a substrate for malignant ventricular arrhythmias. Noninvasive measurement of abnormal repolarization through assessment of QT interval dispersion ...
Global and Regional Ventricular Repolarization Study by Body Surface Potential Mapping in Patients with Left Bundle-Branch Block and Heart Failure Undergoing Cardiac Resynchronization Therapy
(WILEY-BLACKWELLMALDEN, 2012)
Background: The controversial effects promoted by cardiac resynchronization therapy (CRT) on the ventricular repolarization (VR) have motivated VR evaluation by body surface potential mapping (BSPM) in CRT patients. Methods: ...
Combined effects of exercise training and high doses of anabolic steroids on cardiac autonomic modulation and ventricular repolarization properties in rats
(Canadian Science Publishing, 2019-12-01)
Several studies have reported that high doses of synthetic anabolic androgenic steroids (AAS) can have serious negative effects on health, including the cardiovascular system. The aim of this study was to evaluate the ...
Quantification of ventricular repolarization dispersion using digital processing of the surface ECG
(IntechOpen, 2011)
Digital processing of electrocardiographic records was one of the first applications of signal processing on medicine. There are many ways to analyze and study electrical cardiac activity using the surface electrocardiogram ...
Dynamic response of temporal and spatial ventricular repolarization dispersion indices during abrupt heart rate changes
(Institute of Electrical and Electronics Engineers, 2013)
Ventricular repolarization dispersion (VRD) has been shown to constitute a substrate for arrhythmias. We analyzed the evolution of different electrocardiogram indices of VRD responding to changes in heart rate (HR) induced ...
Diffuse interstitial fibrosis assessed by cardiac magnetic resonance is associated with dispersion of ventricular repolarization in patients with hypertrophic cardiomyopathy
(Wiley, 2017)
Background: Hypertrophic cardiomyopathy (HCM) is characterized by myocyte hypertrophy, disarray, fibrosis, and increased risk for ventricular arrhythmias. Increased QT dispersion has been reported in patients with HCM, but ...
Analysis of an electrocardiographic multilead system by means of artificial neural networks: study of repolarization during premature ventricular stimulation
(SciTepress, 2016)
The ventricular repolarization dispersion (VRD) has been shown to increase with premature stimulation. Moreover, several differences between left ventricular and right ventricular, such as the anatomic properties and ...
Dynamic response of electrocardiographic indices during abrupt heart rate changes: comparison between young and middle-aged subjets
(SciTePress Digital Library, 2015)
Abnormal modifications in ventricular repolarization dispersion (VRD) have been shown to constitute a substrate for malignant arrhythmias. In this work, we have induced abrupt heart rate (HR) changes to young and middle-aged ...
Quantification of Cardiac Ventricular Repolarization and its Spatial Dispersion through the Surface ElectrocardiogramCuantificación de la dispersión espacial de la repolarización ventricular cardíaca a través del electrocardiograma de superficie
(Sociedad Argentina de Cardiologia, 2009-01)
La dispersión de la repolarización ventricular (DRV) está determinada esencialmente por la heterogeneidad de los potenciales de acción en diferentes regiones del miocardio. Con frecuencia el corazón responde a ciertos ...