Buscar
Mostrando ítems 11-20 de 25
T-wave peak-end interval and ratio of T-wave peak-end and QT intervals: novel arrhythmogenic and survival markers for dogs with myxomatous mitral valve disease
(2021-06-01)
Introduction/objectives: In the past few years, novel markers such as the interval between the peak and the end of T-wave (Tpte) and Tpte/QT ratio have been shown to have high sensitivity for ventricular arrhythmias and ...
Tptf e Tptf/QT: novos marcadores arritmogênicos e de sobrevida em cães com doença mixomatosa da valva mitral
(Universidade Estadual Paulista (Unesp), 2020-07-29)
Introdução / Objetivos: Nos últimos anos, novos marcadores, como o intervalo entre o pico e o final da onda T (Tptf) e a relação Tptf/QT, vêm demonstrando alta sensibilidade a arritmias e mortalidade ventriculares. Analisamos ...
Evaluation of Ventricular Repolarization Dispersion During Acute Myocardial Ischemia: Spatial and Temporal ECG indices
(Springer Heidelberg, 2014-01)
In this work, we studied the evolution of different electrocardiogram (ECG) indices of ventricular repolarization dispersion (VRD) during acute transmural myocardial ischemia in 95 patients undergoing percutaneous coronary ...
Modulation of spatial variance of ventricular repolarization after myocardial infarction
(Elsevier, 2017-04)
Myocardial infarction (MI) alters spatial features of thesurface electrocardiogram. Spatial variance of the T-wave (SVT )describes the interlead dispersion about a mean T-wave morphology. SVTwas linked to arrhythmiavulnerability ...
Spatial variance in the 12-lead ECG and mechanical dyssynchrony
(Springer, 2021-05)
Introduction: Electrical transmission disorders have a deleterious effect on cardiac depolarization, resulting in a disorganized ventricular contraction that reduces global mechanical efficiency; this mechanical dyssynchrony ...
Avaliação de parâmetros de repolarização ventricular em pacientes ambulatoriais com psoríase
(Universidade Federal de Santa MariaBrasilCiências da SaúdeUFSMPrograma de Pós-Graduação em Ciências da SaúdeCentro de Ciências da Saúde, 2020-03-21)
Introduction: Psoriasis is a chronic, immune mediated and genetically disease.
Cardiovascular diseases seem to occur more frequently in these patients, including a
higher risk of arrhythmias. Parameters of ...
Reperfusion arrhythmias increase after superior cervical ganglionectomy due to conduction disorders and changes in repolarization
(Molecular Diversity Preservation International, 2020-03)
Pharmacological concentrations of melatonin reduce reperfusion arrhythmias, but less is known about the antiarrhythmic protection of the physiological circadian rhythm of melatonin. Bilateral surgical removal of the superior ...
Dynamic features of cardiac vector as alternative markers of drug-induced spatial dispersion
(Elsevier, 2020-07)
Introduction The abnormal amplification of ventricular repolarization dispersion (VRD) has long been linked to proarrhythmia risk. Recently, the measure of VRD through electrocardiogram intervals has been strongly questioned. ...
Procesamiento de la actividad eléctrica cardíaca basado en modelos biológicos y matemáticos: Detección y cuantificación de riesgo cardíaco
(2018-11-21)
Los cambios globales que se han dado a fines del siglo XX, han transformado los hábitos de vida de las sociedades. La mala alimentación basada en lípidos, la continua exposición al estrés, las extensas jornadas laborales, ...