Results 1 to 10 of about 81,103 (292)

Parameter variations in personalized electrophysiological models of human heart ventricles. [PDF]

open access: yesPLoS ONE, 2021
The objectives of this study were to evaluate the accuracy of personalized numerical simulations of the electrical activity in human ventricles by comparing simulated electrocardiograms (ECGs) with real patients' ECGs and analyzing the sensitivity of the
Konstantin Ushenin   +4 more
doaj   +2 more sources

Acclimation of Hairless Spontaneously Hypertensive Rat to Ambient Temperature Attenuates Hypertension-Induced Pro-Arrhythmic Downregulation of Cx43 in the Left Heart Ventricle of Males [PDF]

open access: yesBiomolecules
Objectives: Due to poor treatment adherence and lifestyle-based interventions, chronic hypertension is a dominant risk factor predisposing individuals to heart failure and malignant arrhythmias.
Katarina Andelova   +8 more
doaj   +2 more sources

Association of Abnormal Serum L-Carnitine Levels with Idiopathic Changes in Left Ventricular Geometry in Pediatric and Adolescent Patients [PDF]

open access: yesIranian Journal of Medical Sciences, 2022
Background: There is no compelling evidence to prove an association between serum free L-carnitine levels and changes in left ventricular (LV) geometry. The present study aimed to evaluate a possible association between these parameters.
Mohsen Shahidi   +2 more
doaj   +1 more source

Investigation of human coronary arteries and heart ventricles mode of deformation and haemodynamics

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2011
Mechanical properties of coronary arteries and heart tissues, computer 3D models of CA and heart ventricles were investigated. Numerical analysis of coronary arteries and heart ventricles mode of deformation and haemodynamics was made.
A. A. Golyadkina   +2 more
doaj   +3 more sources

Increased GIRK channel activity prevents arrhythmia in mice with heart failure by enhancing ventricular repolarization

open access: yesScientific Reports, 2023
Ventricular arrhythmia causing sudden cardiac death is the leading mode of death in patients with heart failure. Yet, the mechanisms that prevent ventricular arrhythmias in heart failure are not well characterized.
Xue An, Hana Cho
doaj   +1 more source

Early surgical intervention for unusually located cardiac fibroelastomas [PDF]

open access: yesYeungnam University Journal of Medicine, 2020
Papillary fibroelastomas are the second most common primary cardiac tumor in adults. Over 80% of fibroelastomas occur on the cardiac valves, usually on the left side of the heart, while the remaining lesions are typically scattered throughout the atria ...
Eui Suk Chung   +7 more
doaj   +1 more source

Left ventricular diverticulum: incidental finding on dual source cardiac ct

open access: yesJournal of the Belgian Society of Radiology, 2011
The purpose of this retrospective study is to describe the prevalence, size and location of left ventricular (LV) diverticulum- diverticuli on cardiac dual source CT.
Y De Bruecker   +6 more
doaj   +1 more source

COMPUTER MODELING IN THE DEVELOPMENT OF ARTIFICIAL VENTRICLES OF HEART

open access: yesВестник трансплантологии и искусственных органов, 2011
In article modern researches of processes of development of artificial ventricles of heart are described. Advanta- ges of application computer (CAD/CAE) technologies are shown by development of artificial ventricles of heart.
L. V. Belyaev, A. V. Zhdanov
doaj   +1 more source

Scenarios for Increasing, Decreasing and Stability of Tpe/QT Ratio (Simulation Study) [PDF]

open access: yesInternational Journal of Biomedicine, 2022
The objective of this simulation was to study the physiological meaning of the novel index for arrhythmic risk stratification – Tpe/QT ratio (the interval from the peak to the end of the T-wave (Tpe) on electrocardiogram divided by QT interval). Methods
Natalia V. Arteyeva, Jan E. Azarov
doaj   +1 more source

α1-adrenergic stimulation increases ventricular action potential duration in the intact mouse heart

open access: yesFACETS, 2021
The role of α1-adrenergic receptors (α-ARs) in the regulation of myocardial function is less well-understood than that of β-ARs. Previous reports in the mouse heart have described that α1-adrenergic stimulation shortens action potential duration in ...
William Joyce   +4 more
doaj   +1 more source

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