Results 251 to 260 of about 95,277 (312)
Uncovering the impact of the cardiovascular system on cerebrovascular health using MRI
Abstract Human cerebrovasculature is finely tuned to enable local changes in blood flow to meet the brain's demands, whilst protecting the brain from systemic changes in blood pressure, both acutely during a heartbeat and chronically over time. This review summarises cerebrovascular structure and function, their role in disease and neurodegeneration ...
Ian D. Driver, Kevin Murphy
wiley +1 more source
Optimizing cerebrovascular endothelial health through shear stress modulation
Abstract The endothelium plays a pivotal role in regulating cerebrovascular blood flow, and its dysfunction increases the risk of cerebrovascular disease. Endothelial shear stress, a primary mechanical stimulus for endothelial nitric oxide production, is a key modulator of vascular adaptation.
Erika Iwamoto +2 more
wiley +1 more source
Abstract Cerebral blood flow (CBF) is essential for sustaining neuronal metabolism and cognitive performance; however, the precise relationship between perfusion and cognition remains unclear. Although ageing and disease are associated with progressive declines in CBF and cognitive impairment, the acute effects of altered CBF under environmental ...
Hiroki Nakata +2 more
wiley +1 more source
Abstract Central arterial stiffening, particularly of the proximal aorta, is increasingly recognised as a pivotal contributor to cardiovascular disease, dementia, and mild cognitive impairment. Loss of Windkessel function amplifies pulsatile pressure, reduces diastolic perfusion and accelerates microvascular damage in the brain.
Jun Sugawara, Hirofumi Tanaka
wiley +1 more source
Abstract Stability in cerebral oxygen extraction fraction (OEF) is typically determined by alterations in cerebral blood flow (CBF). At rest, arterial partial pressure of carbon dioxide (PaCO2${P_{{\mathrm{aC}}{{\mathrm{O}}_2}}}$) and OEF exhibit a strong inverse relationship owing to the powerful influence of PaCO2${P_{{\mathrm{aC}}{{\mathrm{O}}_2}}}$
L. Madden Brewster +11 more
wiley +1 more source
Cerebral haemodynamic responses to inspiratory muscle work
Abstract Fatiguing inspiratory work has been shown to evoke a sympathetically mediated reflex that has systemic cardiovascular consequences, including increases in heart rate and blood pressure and a decrease in resting limb vascular conductance. Moreover, the response to this reflex appears to be attenuated in females compared with males.
Andrew H. Ramsook +8 more
wiley +1 more source
Changes in velocity profiles in a two dimensional carotid artery geometry in response to changes in velocity waveforms and a simulated stenosis growth:a lattice Boltzmann simulation [PDF]
Boyd, J., Buick, James
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Duplication of the internal carotid artery
Neuroradiology, 1980F C, Killien, A R, Wyler, L D, Cromwell
exaly +3 more sources
Internal Carotid Artery Epistaxis
Otolaryngology–Head and Neck Surgery, 1986Epistaxis from the internal carotid artery (ICA) or bleeding from the ICA at the skull base is a rare, frightening, and difficult management problem. We present five cases, with a variety of causes—in all of which the patients survived massive hemorrhage—and suggest a protocol for management of the condition.
M S, Kleid, H S, Millar
openaire +2 more sources
Internal carotid artery dissection
British Journal of Hospital Medicine, 2016Internal carotid artery dissection is an important cause of ischaemic stroke in those aged under 50 years. Awareness of the clinical features is crucial as they may offer the opportunity to intervene to reduce strokes occurring or recurring.
Thomas B, Stoker +2 more
openaire +2 more sources

