Results 41 to 50 of about 737,277 (397)

The right ventricle: interaction with the pulmonary circulation

open access: yesCritical Care, 2016
The primary role of the right ventricle (RV) is to deliver all the blood it receives per beat into the pulmonary circulation without causing right atrial pressure to rise.
M. Pinsky
semanticscholar   +1 more source

Functional role of t-tubules on calcium transients in canine cardiac myocytes

open access: yesHeart and Mind, 2019
Background: A loss of t-tubules and alterations in ultrastructure occur in cultured ventricular myocytes. A similar alteration in t-tubules and ultrastructure is well documented under certain pathological conditions such as heart failure. We examined the
Alicia A Barnes   +9 more
doaj   +1 more source

Early Left Ventricular Involvement Detected by Cardiovascular Magnetic Resonance Feature Tracking in Arrhythmogenic Right Ventricular Cardiomyopathy: The Effects of Left Ventricular Late Gadolinium Enhancement and Right Ventricular Dysfunction

open access: yesJournal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2019
Background Left ventricular (LV) involvement is common in arrhythmogenic right ventricular cardiomyopathy (ARVC). We aim to evaluate LV involvement in ARVC patients by cardiovascular magnetic resonance feature tracking.
Xiuyu Chen   +8 more
doaj   +1 more source

Pathways Regulating Establishment and Maintenance of Cardiac Chamber Identity in Zebrafish

open access: yesJournal of Cardiovascular Development and Disease, 2021
The vertebrate heart is comprised of two types of chambers—ventricles and atria—that have unique morphological and physiological properties. Effective cardiac function depends upon the distinct characteristics of ventricular and atrial cardiomyocytes ...
Yao Yao, Amanda N. Marra, Deborah Yelon
doaj   +1 more source

Transthoracic three-dimensional echocardiography for the assessment of straddling tricuspid or mitral valves [PDF]

open access: yes, 2008
Background The advent of 3D echocardiography has provided a technique which, potentially, could afford significant additional information over conventional cross-sectional echocardiography in the assessment of patients with straddling atrioventricular ...
Anderson, RH   +3 more
core   +1 more source

Continuous addition of progenitors forms the cardiac ventricle in zebrafish

open access: yesbioRxiv, 2017
The vertebrate heart develops from several progenitor lineages. After early-differentiating first heart field (FHF) progenitors form the linear heart tube, late-differentiating second heart field (SHF) progenitors extend the atrium and ventricle, and ...
Anastasia Felker   +7 more
semanticscholar   +1 more source

Left ventricular active stiffness: dependency on time and inotropic state [PDF]

open access: yes, 1978
Left ventricular systolic stiffness was measured by rapidly changing ventricular volume (within 7 ms) of isovolumically contracting isolated rabbit hearts. Instantaneous pressure-volume relations were found to be linear with slopes that depended upon the
Boom, Herman B.K., Schiereck, Piet
core   +2 more sources

Mixed Valvular Disease Following Transcatheter Aortic Valve Replacement: Quantification and Systematic Differentiation Using Clinical Measurements and Image-Based Patient‐Specific In Silico Modeling [PDF]

open access: yes, 2020
Background: Mixed valvular disease (MVD), mitral regurgitation (MR) from pre‐existing disease in conjunction with paravalvular leak (PVL) following transcatheter aortic valve replacement (TAVR), is one of the most important stimuli for left ventricle (LV)
Amrute, Junedh M.   +13 more
core   +1 more source

Using Systolic Local Mechanical Load to Predict Fiber Orientation in Ventricles

open access: yesFrontiers in Physiology, 2020
A simple rule adopted for myofiber reorientation in the ventricles is pursued by taking the microscopic branching network of myocytes into account.
Takumi Washio   +5 more
doaj   +1 more source

Will the real ventricular architecture please stand up? [PDF]

open access: yes, 2017
Ventricular twisting, essential for cardiac function, is attributed to the contraction of myocardial helical fibers. The exact relationship between ventricular anatomy and function remains to be determined, but one commonly used explanatory model is the ...
Hoffman, Julien IE
core   +1 more source

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