Results 31 to 40 of about 83,456 (310)
Journal of the Practice of Cardiovascular Sciences, 2018 Background: Recent and emerging evidences show that glucose ingestion causes prolonged Q-T interval and can trigger arrhythmia. Objective: The objective of this study is to examine the effects of administration of glucose solutions on the heart rate ...
B I Waziri, A Shahzad
doaj +1 more source
Angina de Prinzmetal Angina de Prinzmetal Prinzmetal's angina
Arquivos Brasileiros de Cardiologia, 2009 Essa síndrome é causada por um espasmo focal de uma artéria coronária epicárdica, levando a isquemia miocárdica grave. Embora freqüentemente acredite-se que o espasmo ocorra em artérias sem estenose, muitos pacientes com angina de Prinzmetal apresentam ...
Eduardo Contreras Zuniga +4 more
doaj +1 more source
Transthoracic super-resolution ultrasound localisation microscopy of myocardial vasculature in patients [PDF]
, 2023 Micro-vascular flow in the myocardium is of significant importance clinically but remains poorly understood. Up to 25% of patients with symptoms of coronary heart diseases have no obstructive coronary arteries and have suspected microvascular diseases. However, such microvasculature is difficult to image in vivo with existing modalities due to the lack
arxiv +1 more source
Recent Developments in Cardiac Contractility Modulation for Heart Failure [PDF]
Texas Heart Institute JournalNone.
Joshua R. Hirsch, MD, Hamid Afshar, MD
doaj +1 more source
Myocardial ischemic effects on cardiac electro-mechanical activity [PDF]
arXiv, 2021 In this work, we investigated the effect of varying strength of Hyperkalemia and Hypoxia, in human cardiac tissue with a local ischemic subregion, on the electrical and mechanical activity of healthy and ischemic zones of the cardiac muscle. The Monodomain model in a deforming domain is taken with the addition of mechanical feedback and stretch ...
arxiv
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 +2 more sources
Cardiac Dysfunction Induced by Obesity Is Not Related to β-Adrenergic System Impairment at the Receptor-Signalling Pathway. [PDF]
PLoS ONE, 2015 Obesity has been shown to impair myocardial performance. Some factors have been suggested as responsible for possible cardiac abnormalities in models of obesity, among them beta-adrenergic (βA) system, an important mechanism of regulation of myocardial ...
Artur Junio Togneri Ferron +8 more
doaj +1 more source
Modeling 3D cardiac contraction and relaxation with point cloud deformation networks [PDF]
arXiv, 2023 Global single-valued biomarkers of cardiac function typically used in clinical practice, such as ejection fraction, provide limited insight on the true 3D cardiac deformation process and hence, limit the understanding of both healthy and pathological cardiac mechanics.
arxiv
Direct Ink Writing of Conductive Hydrogels
Advanced Functional Materials, EarlyView.This review examines the use of direct ink writing (DIW) for fabricating conductive hydrogels with customizable 3D structures. It outlines the rheological requirements for successful DIW, followed by an exploration of the materials and ink formulations used to impart electronic and/or ionic conductivity to hydrogels while maintaining printability ...
Monica Ho +6 more
wiley +1 more source
Chiral Engineered Biomaterials: New Frontiers in Cellular Fate Regulation for Regenerative Medicine
Advanced Functional Materials, EarlyView.Chiral engineered biomaterials can selectively influence cell behaviors in regenerative medicine. This review covers chiral engineered biomaterials in terms of their fabrication methods, cellular response mechanisms, and applications in directing stem cell differentiation and tissue function.
Yuwen Wang +5 more
wiley +1 more source