Early and late systolic wall stress differentially relate to myocardial contraction and relaxation in middle-aged adults: the Asklepios study [PDF]
HYPERTENSION, 2013 Experimental studies implicate late systolic load as a determinant of impaired left ventricular (LV) relaxation. We aimed to assess the relationship between the myocardial loading sequence and left ventricular (LV) contraction and relaxation.
Chirinos Medina, Julio +8 more
core +3 more sources
Myocardial Contraction Fraction
Journal 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 +3 more sources
Myocardial contraction-relaxation coupling
American 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.
P. Janssen
openaire +5 more sources
Myocardial Contractions and the Ventricular Pressure--Volume Relationship [PDF]
arXiv, 2010 We present a reduced-order heart model with the aim of introducing a novel point of view in the interpretation of the pressure-volume loops. The novelty of the approach is based on the definition of active contraction as opposed to that of active stress.
Paola Nardinocchi +2 more
arxiv +3 more sources
Myocardial contraction fraction predicts mortality for patients with hypertrophic cardiomyopathy. [PDF]
Sci Rep, 2020 The myocardial contraction fraction (MCF: stroke volume to myocardial volume) is a novel volumetric measure of left ventricular myocardial shortening.
Liao H, Wang Z, Zhao L, Chen X, He S.
europepmc +2 more sources
A novel quantitative indicator of the left ventricular contraction based on volume changes of the left ventricular myocardial segments [PDF]
arXiv, 2018 Ejection fraction (EF) is commonly measured by echocardiography, by dividing the volume ejected by the heart (stroke volume) by the volume of the filled heart (end-diastolic volume). Utilizing volume changes of left myocardial segments per a cardiac cycle, physical laws and mathematical equations specific echocardiographic data, this paper serves to ...
Mersedeh Karvandi, Saeed Ranjbar
arxiv +3 more sources
Prognostic impact of myocardial contraction fraction in patients undergoing transcatheter aortic valve replacement for aortic stenosis. [PDF]
Cardiovasc Diagn Ther, 2020 Romeo FJ +8 more
europepmc +3 more sources
Mechanics of Soft Materials, 2021 Contraction in myocardial tissue is the result of a complex process through which chemical energy on the cellular level is converted into the mechanical energy needed to circulate blood throughout the body.
Barış Cansız +2 more
semanticscholar +1 more source
Left ventricle ejection fraction and strain derived by three-dimensional echocardiography are associated with exercise capacity in the patients with heart failure [PDF]
Vojnosanitetski Pregled, 2019 Background/Aim. Echocardiography represents the most commonly performed noninvasive cardiac imaging tests for the patients with heart failure (HF). The aim of this study was to assess the relationship between the exercise capacity parameters [peak oxygen
Pavlović-Kleut Milena +2 more
doaj +1 more source
Association between reduced myocardial contraction fraction and cardiovascular disease outcomes: The Multi-Ethnic Study of Atherosclerosis. [PDF]
Int J Cardiol, 2019 Abdalla M +6 more
europepmc +3 more sources