Results 111 to 120 of about 303,114 (168)
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The American Journal of Cardiology, 2000
Present adaptive-rate pacemakers use a range of sensors for implementation in open-loop and closed-loop control systems. Hemodynamic sensors that detect the mechanical action of the heart and blood flow offer additional features to implement physiologic rate adaption in rate-controlling systems and rate-limiting systems.
D R, Daum, B R, Jones, D J, Lang
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Present adaptive-rate pacemakers use a range of sensors for implementation in open-loop and closed-loop control systems. Hemodynamic sensors that detect the mechanical action of the heart and blood flow offer additional features to implement physiologic rate adaption in rate-controlling systems and rate-limiting systems.
D R, Daum, B R, Jones, D J, Lang
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Computers and Biomedical Research, 1996
A numerical simulation of hemodynamics in blood vessels with 0-75% dilation is made. A transient UVP finite element method (FEM) and a stable time integration scheme, based on a predictor-corrector strategy, with constant error monitoring are employed in the flow analysis. The pulsatile flow is analyzed without any assumptions in nonlinear terms and is
B V, Kumar, K B, Naidu
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A numerical simulation of hemodynamics in blood vessels with 0-75% dilation is made. A transient UVP finite element method (FEM) and a stable time integration scheme, based on a predictor-corrector strategy, with constant error monitoring are employed in the flow analysis. The pulsatile flow is analyzed without any assumptions in nonlinear terms and is
B V, Kumar, K B, Naidu
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Comprehensive Physiology, 2016
ABSTRACT A review is presented of the physical principles governing the distribution of blood flow and blood pressure in the vascular system. The main factors involved are the pulsatile driving pressure generated by the heart, the flow characteristics of blood, and the geometric structure and mechanical properties
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ABSTRACT A review is presented of the physical principles governing the distribution of blood flow and blood pressure in the vascular system. The main factors involved are the pulsatile driving pressure generated by the heart, the flow characteristics of blood, and the geometric structure and mechanical properties
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Hemodynamics and atherosclerosis
Experimental and Molecular Pathology, 1974Atherosclerosis is an ubiquitous disease effecting degenerative, proliferative and atrophic changes in the vessel wall. Preoccupation with intramural lipid accumulation has been at the expense of studies concerning other aspects of atherosclerosis including the complications. The current view of the lipid hypothesis fails to explain the localization or
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Journal of Perinatal Medicine, 2001
Starting in the left cardiac ventricle the reader is taken on a guided tour on a fetal erythrocyte as measured by Doppler ultrasound. Up in the ascending aorta we move through the aortic isthmus to the descending aorta and the internal umbilical arteries, which fuse around the umbilical cord. With fresh oxygen from the placenta our erythrocyte moves in
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Starting in the left cardiac ventricle the reader is taken on a guided tour on a fetal erythrocyte as measured by Doppler ultrasound. Up in the ascending aorta we move through the aortic isthmus to the descending aorta and the internal umbilical arteries, which fuse around the umbilical cord. With fresh oxygen from the placenta our erythrocyte moves in
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Hemodynamics in Hemofiltration
2015To study the established but not well understood phenomenon of improved intratreatment vascular stability during hemofiltration the same 10 stable hemodialysis patients were investigated during one hemodialysis and one hemofiltration treatment. Both treatments were matched in regard to linear fluid withdrawal (3 kg/240 minutes), small molecule removal ...
C A, Baldamus +4 more
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Hemodynamic monitoring in liver transplantation ‘the hemodynamic system’
Current Opinion in Organ Transplantation, 2023Purpose of review The purpose of this article is to provide a comprehensive review of hemodynamic monitoring in liver transplantation. Recent findings Radial arterial blood pressure monitoring underestimates the aortic root arterial blood pressure and causes excessive vasopressor ...
Sherif, Kandil, Ashraf, Sedra
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Physiological Reviews, 1960
HE HEMODYNAMICS OF HYPERTENSION have not been a popular subject for review. In 1938 Wiggers (246) summarized primarily the excellent work of his own group on this subject. It is fitting that a fresh attempt be made to correlate the hemodynamic features of hypertension, particularly as it is evidenced in man, with current physioIogica1 concepts. In such
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HE HEMODYNAMICS OF HYPERTENSION have not been a popular subject for review. In 1938 Wiggers (246) summarized primarily the excellent work of his own group on this subject. It is fitting that a fresh attempt be made to correlate the hemodynamic features of hypertension, particularly as it is evidenced in man, with current physioIogica1 concepts. In such
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AORN Journal, 1998
ABSTRACTThe vascular system is a complex network transporting blood to and from all parts of the body. It distributes oxygenated and nutrientrich blood to body tissues via arteries, arterioles, metarterioles, and capillaries. Venules and veins carry deoxygenated blood, cellular wastes, and carbon dioxide to the heart and lungs to be oxygenated or ...
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ABSTRACTThe vascular system is a complex network transporting blood to and from all parts of the body. It distributes oxygenated and nutrientrich blood to body tissues via arteries, arterioles, metarterioles, and capillaries. Venules and veins carry deoxygenated blood, cellular wastes, and carbon dioxide to the heart and lungs to be oxygenated or ...
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Critical Care Nursing Clinics of North America, 1999
Hemodynamic monitoring is one of the most exciting and potentially useful technologies in critical care. Hemodynamic monitoring, particularly the PAC, is the technology most often associated with the critical care unit. However, it is a difficult technology to master and is associated with clear (although infrequent) serious complications.
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Hemodynamic monitoring is one of the most exciting and potentially useful technologies in critical care. Hemodynamic monitoring, particularly the PAC, is the technology most often associated with the critical care unit. However, it is a difficult technology to master and is associated with clear (although infrequent) serious complications.
openaire +2 more sources