Results 11 to 20 of about 133,938 (359)

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

Sex‐specific activation of SK current by isoproterenol facilitates action potential triangulation and arrhythmogenesis in rabbit ventricles [PDF]

open access: yes, 2018
Sex has a large influence on cardiac electrophysiological properties. Whether sex differences exist in apamin‐sensitive small conductance Ca2+‐activated K+ (SK) current (IKAS) remains unknown.
Chen, Mu   +10 more
core   +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

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

Effects of early afterdepolarizations on excitation patterns in an accurate model of the human ventricles [PDF]

open access: yes, 2017
Early Afterdepolarizations, EADs, are defined as the reversal of the action potential before completion of the repolarization phase, which can result in ectopic beats.
Panfilov, Alexander   +3 more
core   +3 more sources

Functional modulation of the transient outward current Ito by KCNE beta-subunits and regional distribution in human non-failing and failing hearts [PDF]

open access: yes, 2006
Objectives: The function of Kv4.3 (KCND3) channels, which underlie the transient outward current I,, in human heart, can be modulated by several accessory subunits such as KChIP2 and KCNE1-KCNE5.
Banse, U.   +8 more
core   +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

Dynamics of systolic functional indexes of the heart and systolic interventricular interaction in patients with chronic heart failure of ischemic genesis depending on functional class

open access: yesPatologìâ, 2012
The peculiarities of changes of systolic functional indexes of the right heart chambers and interventricular interaction depending on functional class of heart failure of ischemic genesis in 111 patients with chronic heart failure of I-IV functional ...
V.V. Syvolap, N.V. Tumanskaya
doaj   +1 more source

21 Tesla MRI Microimaging of Rat Heart by Superparamagnetic Antimyoglobin Bound Nanoparticles [PDF]

open access: yes, 2008
Superparamagnetic iron-oxide bound antimyoglobin (SPIOM) characteristics were analyzed at different pH. After injecting SPIOM in heart, ex vivo magnetic resonance microimaging (MRM) technique was used to visualize microvasculature of rat heart including
Rakesh Sharma
core   +2 more sources

Histological study on the heart ventricle of Egyptian bovines (Bos aegyptiacus) [PDF]

open access: yesOpen Veterinary Journal, 2019
Background: The heart ventricles have thicker walls than atrium as they pump blood through blood vessels into all body organs. Aim: This study aimed to describe the histological changes of the heart ventricles in Egyptian bovine (Bos aegyptiacus) with ...
Mahmoud Abdelghaffar Emam   +1 more
doaj   +1 more source

Home - About - Disclaimer - Privacy