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Conceptualizing myocardial contractility as an emergent property that characterizes myocardial contraction. [PDF]

open access: goldFront Physiol
Myocardial contractility (MC) is a fundamental concept that is widely used to describe the cardiac muscles’ mechanical function, yet its definitions in textbooks and literature are vague, inconsistent, and often contradictory. In this article, we categorize these many issues into five groups and conducts a conceptual analysis to redefine MC from a ...
Kuang SY, Geloian G.
europepmc   +5 more sources

Modulation of myocardial contraction by peroxynitrite. [PDF]

open access: yesFront Physiol, 2012
Peroxynitrite is a potent oxidant that is quickly emerging as a crucial modulator of myocardial function. This review will focus on the regulation of myocardial contraction by peroxynitrite during health and disease, with a specific emphasis on cardiomyocyte Ca(2+) handling, proposed signaling pathways, and protein end-targets.
Kohr MJ, Roof SR, Zweier JL, Ziolo MT.
europepmc   +6 more sources

Prognostic impact of myocardial contraction fraction in patients undergoing transcatheter aortic valve replacement for aortic stenosis. [PDF]

open access: goldCardiovasc Diagn Ther, 2020
Romeo FJ   +8 more
europepmc   +3 more sources

STUDIES ON MYOCARDIAL CONTRACTION

open access: yesThe Keio Journal of Medicine, 1969
The relations between the right ventricular contraction and the local myo-cardial shortening measured by means of the transcatheter method were dis-cussed. The local tension-velocity-length relationships were also shown.The authors wish to express their sincere gratitude to Prof. H. Sasamoto for his generous guidance and instruction in this study.
Hajime Hirose   +6 more
openaire   +3 more sources

Transmural Myocardial Mechanics During Isovolumic Contraction [PDF]

open access: yesJACC: Cardiovascular Imaging, 2009
We sought to resolve the 3-dimensional transmural heterogeneity in myocardial mechanics observed during the isovolumic contraction (IC) phase.Although myocardial deformation during IC is expected to be little, recent tissue Doppler imaging studies suggest dynamic myocardial motions during this phase with biphasic longitudinal tissue velocities in left ...
Jeffrey H. Omens   +3 more
openaire   +2 more sources

Myocardial Contraction Fraction

open access: yesJournal of the American College of Cardiology, 2018
Stokke et al. [(1)][1] showed that despite reduced longitudinal and circumferential strain, ejection fraction is maintained by geometric factors, which prompted the editorialists to note, “although strain is emerging as the more optimal marker for LV systolic function, there seems to be no way ...
Laura P. Cohen   +3 more
openaire   +2 more sources

Myocardial contraction-relaxation coupling

open access: yesAmerican Journal of Physiology-Heart and Circulatory Physiology, 2010
Since the pioneering work of Henry Pickering Bowditch in the late 1800s to early 1900s, cardiac muscle contraction has remained an intensely studied topic for several reasons. The heart is located centrally in our body, and its pumping motion demands the attention of the observer.
openaire   +4 more sources

THE EFFECT OF PANCURONIUM ON MYOCARDIAL CONTRACTION AND CATECHOLAMINE METABOLISM

open access: yesSurvey of Anesthesiology, 1975
AbstractThe effects of pancuronium bromide infusion on the uptake and release of [14C] noradrenaline (14C-NA) by the isolated, perfused rat heart and on the chronotropic and inotropic activity of the isolated heart were evaluated. Hearts were removed from animals under light ether anaesthesia, transferred to a modified Langendorff perfusing apparatus ...
Ronald F. Albrecht   +3 more
openaire   +4 more sources

Thick filament regulation of myocardial contraction [PDF]

open access: yes, 2018
The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. ; Vita. ; "August 2006" ; Thesis (Ph. D.) University of Missouri-Columbia 2006.
openaire   +3 more sources

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