Conceptualizing myocardial contractility as an emergent property that characterizes myocardial contraction. [PDF]
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.
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Modulation of myocardial contraction by peroxynitrite. [PDF]
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.
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Prognostic impact of myocardial contraction fraction in patients undergoing transcatheter aortic valve replacement for aortic stenosis. [PDF]
Romeo FJ+8 more
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Association between reduced myocardial contraction fraction and cardiovascular disease outcomes: The Multi-Ethnic Study of Atherosclerosis. [PDF]
Abdalla M+6 more
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STUDIES ON MYOCARDIAL CONTRACTION
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
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Transmural Myocardial Mechanics During Isovolumic Contraction [PDF]
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
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Myocardial Contraction Fraction
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
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Myocardial contraction-relaxation coupling
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.
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THE EFFECT OF PANCURONIUM ON MYOCARDIAL CONTRACTION AND CATECHOLAMINE METABOLISM
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
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Thick filament regulation of myocardial contraction [PDF]
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.
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