Results 11 to 20 of about 58,408 (249)

Repolarization reserve, arrhythmia and new drug development

open access: yesActa Pharmaceutica Sinica B, 2013
Repolarization-related lethal arrhythmias have led to the concept of “repolarization reserve”, which may help elucidate the relationship between K+ currents and other components of repolarization.
Yang Li, Yicheng Fu
doaj   +2 more sources

Mechanisms of drowning in children: influence of cold shock response on repolarization patterns and arrhythmia burden in healthy children [PDF]

open access: yesFrontiers in Sports and Active Living
IntroductionWhile drowning plays a particularly important role in children, the data on the physiology of drowning in this population are scarce. Both the cold shock response and the development of arrhythmias within the context of an autonomic conflict ...
S. Peter   +9 more
doaj   +2 more sources

Diclofenac Prolongs Repolarization in Ventricular Muscle with Impaired Repolarization Reserve [PDF]

open access: yes, 2012
Background: The aim of the present work was to characterize the electrophysiological effects of the non-steroidal anti- inflammatory drug diclofenac and to study the possible proarrhythmic potency of the drug in ventricular muscle.
Juhász Viktor   +36 more
core   +2 more sources

Younger People Show More Changes in Repolarization with Exercise

open access: yes, 2012
Purpose: Cardiac repolarization is a complex phenomenon that depends on heart rate (HR), autonomic nervous system (ANS) activity, age, gender and diseases/pathological conditions etc.
Andersson, Eva,   +4 more
core   +4 more sources

Angiotensinogen and Angiotensin II Type 1 Receptor Gene Polymorphisms and Changes in Repolarization Parameters in Elderly Chinese: A 4-Year Follow-up Study

open access: yesKaohsiung Journal of Medical Sciences, 2008
Ventricular repolarization abnormality plays a crucial role in cardiac arrhythmia. Polymorphisms in renin—angiotensin system genes are associated with occurrence of ventricular arrhythmia. We previously demonstrated that subjects carrying the angiotensin
Ya-Ting Lee   +6 more
doaj   +1 more source

Repolarization Dispersion Is Associated With Diastolic Electromechanical Discoordination in Children With Pulmonary Arterial Hypertension

open access: yesJournal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2022
Background Electromechanical dyssynchrony is a well described comorbidity in pulmonary arterial hypertension (PAH). ECG‐derived measurements reflective of diastolic dysfunction and electromechanical imaging markers are yet to be investigated.
Michal Schäfer   +6 more
doaj   +1 more source

Electrocardiographic manifestations of COVID-19: Effect on cardiac activation and repolarization

open access: yesEClinicalMedicine, 2021
Background: Prolonged QT intervals are reported in patients with COVID-19. Additionally, virus particles in heart tissue and abnormal troponin levels have been reported.
Avni Thakore   +10 more
doaj   +1 more source

Analysis of 24-h Rhythm in Ventricular Repolarization Identifies QT Diurnality As a Novel Clinical Parameter Associated with Previous Ventricular Arrhythmias in Heart Failure Patients

open access: yesFrontiers in Physiology, 2017
Introduction: Cardiac repolarization abnormalities are among the major causes of ventricular arrhythmias and sudden cardiac death. In humans, cardiac repolarization duration has a 24-h rhythm.
Bastiaan C. Du Pre   +7 more
doaj   +1 more source

Repolarization properties of copper-containing crystals of triglycine sulfate

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2022
The paper presents the results of the analysis of experimental dielectric hysteresis loops and field dependens of polarization switching of initial and annealed crystals of triglycine sulfate, doped copper (the concentration range (4,2–8,7) 10-3 wt ...
N.N. Bolshakova   +5 more
doaj   +1 more source

Electrocardiogram abnormalities and prognosis in COVID-19

open access: yesFrontiers in Cardiovascular Medicine, 2022
BackgroundCOVID-19 is a major pandemic with potential cardiovascular complications. Few studies have focused on electrocardiogram (ECG) modifications in COVID-19 patients.Method and resultsWe reviewed from our database all patients referred to our ...
Gabriel Chevrot   +19 more
doaj   +1 more source

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