Results 291 to 300 of about 491,319 (340)
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International Journal of Cardiology, 1989
Systolic arterial pressure increases with aging. This increase encompasses both the clinically normal and hypertensive ranges of pressure and is due in part to arterial stiffening. To what extent it may be modulated by life style changes that accompany aging is unknown. The stiffer arterial tree transmits the pulse wave with a higher velocity such that
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Systolic arterial pressure increases with aging. This increase encompasses both the clinically normal and hypertensive ranges of pressure and is due in part to arterial stiffening. To what extent it may be modulated by life style changes that accompany aging is unknown. The stiffer arterial tree transmits the pulse wave with a higher velocity such that
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Retinal Artery Pressure and Cerebral Artery Perfusion Pressure in Cerebrovascular Occlusive Disease
Neurosurgery, 1986Abstract The objectives of the investigation were to measure the retinal artery pressure (RAP) and cortical artery pressure (CAP) in patients undergoing superficial temporal artery to middle cerebral artery (STA-MCA) bypass, to study the relationship between these pressures, and to evaluate our ability to predict CAP on the basis of RAP.
Robert L. Tomsak +3 more
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Arterial Compliance and Blood Pressure [PDF]
Drugs, 1993 As a result of the dual function of arteries, the conduit and cushioning functions, arterial pressure has 2 components: the steady component, characterised by mean blood pressure, and the pulsatile component, characterised by pulse pressure. Arterial compliance mostly depends on arterial intrinsic elastic properties, and is a determinant of the ...
London Gm +4 more
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Pulmonary artery occlusion pressure
Intensive Care Medicine, 2003The bedside estimation of left ventricular (LV) performance of critically ill patients is an important aspect of the diagnosis and management of these patients. Ever since the introduction of the balloon flotation pulmonary catheterization, health care providers have used measurements of pulmonary artery occlusion pressure (Ppao) to estimate both ...
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2021
In this chapter, practical aspects of systemic arterial blood pressure measurement and monitoring are discussed in the evolutional context. The oscillometric method of non-invasive blood pressure monitoring, invasive direct monitoring via an intra-arterial catheter and the vascular unloading (volume clamp) technique of continuous non-invasive arterial ...
Konstantin M. Lebedinskii +1 more
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In this chapter, practical aspects of systemic arterial blood pressure measurement and monitoring are discussed in the evolutional context. The oscillometric method of non-invasive blood pressure monitoring, invasive direct monitoring via an intra-arterial catheter and the vascular unloading (volume clamp) technique of continuous non-invasive arterial ...
Konstantin M. Lebedinskii +1 more
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The Foundation Years, 2006
Abstract Monitoring arterial pressure is an important aspect of providing clinical care to the anaesthetized and critically ill patient. Because auto-regulation of major organ blood flow may be impaired in these patients, maintenance of an adequate organ perfusion pressure is essential, particularly to vital areas such as the brain, heart and kidneys.
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Abstract Monitoring arterial pressure is an important aspect of providing clinical care to the anaesthetized and critically ill patient. Because auto-regulation of major organ blood flow may be impaired in these patients, maintenance of an adequate organ perfusion pressure is essential, particularly to vital areas such as the brain, heart and kidneys.
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Pulmonary Artery Pressure Monitoring
AACN Advanced Critical Care, 1993Critical care nurses often care for critically ill patients who require pulmonary artery catheterization. Nurses need an extensive knowledge base to understand the various technical and physiologic factors that may affect the accuracy of pressure measurements.
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Measurement of arterial closing pressure
Physiological Measurement, 1993It has been suggested that certain artifacts in blood pressure measurement by auscultation stem from stiffness of the tissues underneath the pressure cuff, resulting in a component of cuff pressure being required to overcome resistance to brachial artery collapse.
M MacMahon +5 more
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Pressure Rise at Arterial Bifurcations
Angiology, 1984The increase in cross-sectional area within an arterial bifurcation is shown to be much larger than that predicted by the conventional area ratio β. Modified area ratios which better describe this increase are presented and their values are assessed both from theoretical considerations and from physiological data. The results suggest that the pressure
M. Zamir, N. Brown
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2020
Pulmonary artery pressure and signs of right ventricular (dys)function are loosely related and should be independently evaluated. Systolic pulmonary artery pressure is best evaluated by peak velocity of tricuspid regurgitation. Acceleration of pulmonary artery flow and its morphology are useful to detect patients with pulmonary hypertension.
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Pulmonary artery pressure and signs of right ventricular (dys)function are loosely related and should be independently evaluated. Systolic pulmonary artery pressure is best evaluated by peak velocity of tricuspid regurgitation. Acceleration of pulmonary artery flow and its morphology are useful to detect patients with pulmonary hypertension.
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