Results 1 to 10 of about 130,285 (357)

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

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

Diastolic shape of the right ventricle of the heart [PDF]

open access: bronzeThe Anatomical Record, 1998
Knowledge of right ventricular (RV) shape is important to the understanding of RV mechanical function and for the improvement of clinically important RV volume estimation techniques. Refinements to the simplest conceptions of RV shape are presented statistically here, based on a quantitative analysis of three-dimensional magnetic resonance (MR) images ...
Peter J. Yim   +6 more
openalex   +4 more sources

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

Parasympathetic and sympathetic axons are bundled in the cardiac ventricles and undergo physiological reinnervation during heart regeneration

open access: yesiScience, 2023
Summary: Sympathetic innervation influences homeostasis, repair, and pathology in the cardiac ventricles; in contrast, parasympathetic innervation is considered to have minimal contribution and influence in the ventricles.
Rebecca J. Salamon   +5 more
doaj   +1 more source

Development of the heart: (2) Septation of the atriums and ventricles [PDF]

open access: bronzeHeart, 2003
In the first part of our review of cardiac development,1 we discussed the initial changes involved in transformation of the heart forming regions of the embryo into the great veins, the atrial and ventricular chambers, and the arterial trunks. We showed that this first part of cardiac development could be divided into phases of formation of the primary
Robert H. Anderson
openalex   +7 more sources

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

Persistent ventricle partitioning in the adult zebrafish heart [PDF]

open access: yesJournal of Cardiovascular Development and Disease, 2021
AbstractThe vertebrate heart integrates cells from the early-differentiating first heart field (FHF) and the later-differentiating second heart field (SHF) emerging from the lateral plate mesoderm. In mammals, this process forms the basis for the development of the left and right ventricle chambers and subsequent chamber septation. The single ventricle-
Catherine Pfefferli   +4 more
openaire   +6 more sources

Numerical simulation of electrocardiograms for full cardiac cycles in healthy and pathological conditions [PDF]

open access: yes, 2015
This work is dedicated to the simulation of full cycles of the electrical activity of the heart and the corresponding body surface potential. The model is based on a realistic torso and heart anatomy, including ventricles and atria.
Bayés de Luna   +61 more
core   +5 more sources

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