Results 41 to 50 of about 35,706 (284)

Dynamic Cerebral Autoregulation Post Endovascular Thrombectomy in Acute Ischemic Stroke

open access: yesBrain Sciences, 2020
The development of the endovascular thrombectomy (EVT) technique has revolutionized acute stroke management for patients with large vessel occlusions (LVOs). The impact of successful recanalization using an EVT on autoregulatory profiles is unknown.
Faheem Sheriff   +14 more
doaj   +1 more source

Association between impaired dynamic cerebral autoregulation and BBB disruption in reversible cerebral vasoconstriction syndrome

open access: yesThe Journal of Headache and Pain, 2023
Background Half of the sufferers of reversible cerebral vasoconstriction syndrome (RCVS) exhibit imaging-proven blood-brain barrier disruption. The pathogenesis of blood-brain barrier disruption in RCVS remains unclear and mechanism-specific intervention
Yu-Hsiang Ling   +8 more
doaj   +1 more source

Aquaporin-4 Functionality and Virchow-Robin Space Water Dynamics: Physiological Model for Neurovascular Coupling and Glymphatic Flow. [PDF]

open access: yes, 2017
The unique properties of brain capillary endothelium, critical in maintaining the blood-brain barrier (BBB) and restricting water permeability across the BBB, have important consequences on fluid hydrodynamics inside the BBB hereto inadequately ...
Igarashi, Hironaka   +3 more
core   +1 more source

Cerebral autoregulation dynamics in humans. [PDF]

open access: yesStroke, 1989
We studied the response of cerebral blood flow to acute step decreases in arterial blood pressure noninvasively and nonpharmacologically in 10 normal volunteers during normocapnia, hypocapnia, and hypercapnia. The step (approximately 20 mm Hg) was induced by rapidly deflating thigh blood pressure cuffs following a 2-minute inflation above systolic ...
Helge Nornes   +3 more
openaire   +2 more sources

Deoxyhaemoglobin as a biomarker of cerebral autoregulation [PDF]

open access: yesCritical Care, 2012
Cerebral autoregulation (CA) maintains cerebral blood flow over a range of perfusion pressure. Continuous CA monitoring might define pressure targets minimising secondary brain injury, but application is limited by available monitoring modalities. Near-infrared spectroscopy (NIRS) is a noninvasive optical technique characterising aspects of CA.
Clare E. Elwell   +6 more
openaire   +2 more sources

Nonlinear and conventional biosignal analyses applied to tilt table test for evaluating autonomic nervous system and autoregulation [PDF]

open access: yes, 2013
Copyright © Tseng et al.; Licensee Bentham Open. This is an open access article licensed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/ by-nc/3.0/) which permits unrestricted, non ...
Castiglioni P   +16 more
core   +1 more source

Impact of impaired cerebral blood flow autoregulation on cognitive impairment

open access: yesFrontiers in Aging, 2022
Although the causes of cognitive impairment are multifactorial, emerging evidence indicates that cerebrovascular dysfunction plays an essential role in dementia.
Shaoxun Wang   +5 more
doaj   +1 more source

The cerebrovascular effects of adrenaline, noradrenaline and dopamine infusions under propofol and isoflurane anaesthesia in sheep [PDF]

open access: yes, 2002
Publisher's copy made available with the permission of the publisher © Australian Society of AnaesthetistsInfusions of catecholamines are frequently administered to patients receiving propofol or isoflurane anaesthesia.
Fortin D.   +5 more
core   +2 more sources

Dynamic cerebral autoregulation is acutely impaired during maximal apnoea in trained divers.

open access: yesPLoS ONE, 2014
AimsTo examine whether dynamic cerebral autoregulation is acutely impaired during maximal voluntary apnoea in trained divers.MethodsMean arterial pressure (MAP), cerebral blood flow-velocity (CBFV) and end-tidal partial pressures of O2 and CO2 (PETO2 and
Troy J Cross   +4 more
doaj   +1 more source

Adaptive feedback analysis and control of programmable stimuli for assessment of cerebrovascular function [PDF]

open access: yes, 2013
The assessment of cerebrovascular regulatory mechanisms often requires flexibly controlled and precisely timed changes in arterial blood pressure (ABP) and/or inspired CO2.
Allen, Robert   +7 more
core   +1 more source

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