Results 71 to 80 of about 4,471,992 (283)
Haemodynamic changes during prone positioning in anaesthetised chronic cervical myelopathy patients
Indian Journal of Anaesthesia, 2019 Background and Aims: Anaesthetised patients, when positioned prone, experience hypotension and reduction in cardiac output. Associated autonomic dysfunction in cervical myelopathy patients predisposes them to haemodynamic changes.
Nitin Manohar +3 more
doaj +1 more source
Parameter inference in a computational model of hemodynamics in pulmonary hypertension [PDF]
arXiv, 2021 Pulmonary hypertension (PH), defined by a mean pulmonary arterial pressure (mPAP) $>$ 20 mmHg, is characterized by increased pulmonary vascular resistance and decreased pulmonary arterial compliance. There are few measurable biomarkers of PH progression, but a conclusive diagnosis of the disease requires invasive right heart catheterization (RHC ...
arxiv
Antioxidants, 2022 Blood pressure is determined by cardiac output and peripheral vascular resistance. The L-type voltage-gated Ca2+ (Cav1.2) channel in small arteries and arterioles plays an essential role in regulating Ca2+ influx, vascular resistance, and blood pressure.
Xiang-Qun Hu, Lubo Zhang
doaj +1 more source
Sultan Qaboos University Medical Journal, 2016 Objectives: This study aimed to examine the association between indicators of arterial resistance occurring late in the first trimester and the subsequent development of pregnancy-related hypertension.
Pralhad Kushtagi, Anoosha Emani
doaj +1 more source
Diabetes and vascular disease: pathophysiology, clinical consequences, and medical therapy: part I
European Heart Journal, 2013 Hyperglycemia and insulin resistance are key players in the development of atherosclerosis and its complications. A large body of evidence suggest that metabolic abnormalities cause overproduction of reactive oxygen species (ROS).
F. Paneni +3 more
semanticscholar +1 more source
Antimicrobial Resistance and Infection Control, 2020 Introduction Antimicrobial resistance is a major public health threat. Antimicrobial stewardship (AMS) is one of the key strategies to overcome resistance, but robust evidence on the effect of specific interventions is lacking.
Nuno Rocha-Pereira +8 more
doaj +1 more source
Journal of Cardiothoracic Surgery, 2021 Pulmonary arterial hypertension is a type of malignant pulmonary vascular disease, which is mainly caused by the increase of pulmonary vascular resistance due to the pathological changes of the pulmonary arteriole itself, which eventually leads to right ...
Jianying Deng
doaj +1 more source
European Heart Journal, 2008 AIMS Pulmonary arterial compliance (C) is increasingly being recognized as an important contributor to right ventricular afterload, but for monitoring of treatment of pulmonary hypertension (PH) most often still only pulmonary vascular resistance (R) is ...
J. Lankhaar +8 more
semanticscholar +1 more source
On conditions of negativity of friction resistance for non-stationary modes of blood flow and possible mechanism of affecting of environmental factors on energy effectiveness of cardio-vascular system functioning [PDF]
arXiv, 2013 It is shown that initiated by action of molecular viscosity impulse flow, directed usually from the moving fluid to limiting it solid surface, can, under certain conditions, turn to zero and get negative values in the case of non-stationary flow caused by alternating in time longitudinal (along the pipe axis) pressure gradient.
arxiv
Sensitivity analysis and uncertainty quantification of 1D models of the pulmonary circulation [PDF]
, 2018 This study combines a one-dimensional (1D) model with micro-CT imaging and hemodynamic data to quantify uncertainty of flow and pressure predictions in the pulmonary arteries in a control and hypoxia induced hypertensive mouse. We use local and global sensitivity and correlation analysis to determine parameters that can be inferred from the model and ...
arxiv +1 more source