Blood rheology alterations in cardiovascular disease

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It has long been recognized that understanding the rheological properties of blood is essential to a full understanding of the function of the circulatory system. Given the difficulty of obtaining carefully controlled measurements in vivo, most of our current concepts of the flow behavior of blood in vivo are based on its properties in vitro. flow pattern and rheological properties of blood [9]. The aim of the present paper is to determine blood resistivity using a procedure based on dielectric spectroscopy and to .

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The effects of transfusion on the rheological properties of blood in sickle cell anemia were studied in 15 patients. Blood samples were obtained before and after transfusion of normal (hemoglobin AA) packed cells. Blood viscosity was determined with a coaxial cylinder viscometer over a wide range of shear rates. Adsorption-rheological properties of blood serum in lung cancer patients. Dumanskiy YV(1), Stoliarova OY(2), Syniachenko OV(1), Giulmamedova MF(1), Potapov YA(1). Author information: (1)Donetsk National Medical University, Lyman 84400, Ukraine. (2)National Cancer Institute, Kyiv 03022, Ukraine.

The technique involving filtration of diluted blood enables the separate analysis of the flow properties of different cell subpopulations. This study was designed to assess the changes occurring in the flow properties and function of blood cells in stored bank blood and salvaged blood compared to patient blood in a given clinical situation.

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The rheological properties of blood are influenced by individual characteristics of these components as well as factors such as haematocrit, amongst others [1,2]. Whilst plasma itself is a Newtonian fluid, addition of the blood cellular components alters its rheological behaviour Applications.

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Blood leucocytes counts, haemoglobin and hematocrit values, mean corpuscular hemoglobin, mean corpuscular hemoglobin concentration, glucose, triglyceride, total protein, globulin, aspartate formed from a solution of proteins and minerals. The rheological properties of blood are influenced by individual characteristics of these components as well as factors such as haematocrit, amongst others [1,2]. Whilst plasma itself is a Newtonian fluid, addition of the blood cellular components alters its rheological behaviour [Rheological properties of blood]. [Article in Czech] Bulvas M. PMID: 6380096 [PubMed - indexed for MEDLINE] Publication Types: English Abstract; Review; MeSH Terms. Blood Viscosity* Erythrocyte Aggregation; Erythrocyte Count; Erythrocytes/physiology; Humans; Plasma/physiology; Rheology* The results of some researches specify the important role of blood rheological properties changes in arterial hypertension (AH) pathogenesis. The goal of our study is to investigate the parameters of hemorheology and platelet aggregation in patients with various grade of AH. The study was carried ou … 2016-02-05 Comparison of apparent transient rheological properties of fresh whole blood drawn from the same bulk sample using the ARES rheometer and a thromboelastograph (TEG).

They alter the rheological prop-erties of blood as a consequence of A Study on Rheological Properties of Blood and Improvements with High-Voltage Plasma Discharge A Thesis Submitted to the Faculty of Drexel University Blood is a heterogeneous multi-phase mixture of solid corpuscles (red blood cells, white blood cells and platelets) suspended in a liquid plasma which is an aque-ous solution of proteins, organic molecules and minerals (refer to Figure1). The rheological characteristics of blood are determined by the properties of these com- 2015-11-07 · Anatomy and Physiology of Blood - Duration: 41:26. New Anatomy and Physiology Video 566,136 views Velocity-dependent flow of human red blood cells in capillaries with inside diameters of 4 to 8 μm is described theoretically. Cells are assumed to flow in single file, with axisymmetric shapes. Plasma flow in the gaps between cells and vessel walls is described by lubrication theory. Rheological properties of blood in patients with chronic liver disease (ER), whole blood and plasma viscosity, erythrocyte and platelet count, hemoglobin, Blood is a suspension of various solid cells in a liquid plasma, formed from a solution of proteins and minerals. The rheological properties of blood are influenced by individual characteristics of these components as well as factors such as haematocrit, amongst others [1,2].
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For instance, the apparent viscosity of blood in microvessels is substantially lower than its bulk value (Fahraeus and Lindqvist, 1931) over a wide range of vessel diameters. T1 - Flow-dependent rheological properties of blood in capillaries. AU - Secomb, T. W. N1 - Funding Information: This work was supported by NIH Grants HLl7421. PY - 1987/7.

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Most fluid contains water and relative large amounts of dissolved molecular weight compounds (e.g. sugar) and no significant amount of polymers or insoluble solids. The steady-flow rheological properties of suspensions of mixtures of normal and glutaraldehyde-hardened human red blood cells in albumin-containing saline were determined in the shear rate range of 0.1 to 1500 sec/sup -1/, for total cell volume concentrations (hematocrits) between 30 and 43.5% and over the entire range of normal-to-hardened Abstract. An evaluation of the rheological properties and the effects of Momordica.